The Bently Nevada 3500 Series offers advanced condition monitoring for critical industrial machinery. We provide modules, probes, and spare parts to ensure uninterrupted operation.
Bently Nevada 3500 Series
-
Bently Nevada Bently Nevada 3500/50 134938-01 Tachometer Module
Product Description The 3500/50 Tachometer Module (134938-01) is a dual-channel monitoring unit designed for continuous evaluation of rotational dynamics in high-value machinery. It is integrated into the Bently Nevada 3500 rack platform and supports real-time monitoring of speed behavior, transient events, and directional changes for protection and diagnostics. The module processes signals from proximity probes and magnetic pickup sensors, converting raw pulse data into actionable machinery parameters such as rotational speed, acceleration, and direction status. Signal Processing Capabilities The module supports multiple measurement functions derived from shaft rotational input: Continuous shaft speed measurement in RPM or Hz Rotor acceleration calculation (RPM per second) Zero-speed detection during startup and shutdown conditions Reverse rotation identification and event logging Speed band monitoring for defined operating ranges Peak capture for maximum and reverse rotational events Signal conditioning ensures stable Keyphasor-style reference output distributed through the rack backplane for system synchronization. Input Specifications Dual independent input channels Sensor compatibility: Eddy current proximity probes (preferred for full capability range) Magnetic pickups (usable but limited at low-speed and directional detection scenarios) Input voltage range: +10 V to –24 V DC Input impedance: 20 kΩ Maximum frequency response: up to 20 kHz (sensor dependent) Low-speed detection behavior: Near-zero detection supported with proximity probes Magnetic pickups limited by waveform stability at low RPM Output Interfaces Per-channel buffered signal output via coaxial connectors Conditioned Keyphasor signal distributed to rack backplane Front-panel diagnostic indicators: Module health status (OK) Communication activity (TX/RX) Bypass mode indication Analog proportional outputs available for trending and external visualization (non-protective function) Operating Configuration Modes The module supports multiple configurable logic profiles via 3500 rack software: Speed monitoring with threshold-based alarms Speed monitoring with zero-speed detection logic Combined speed and rotor acceleration analysis Speed monitoring with reverse rotation protection Speed band control for operational envelope supervision Each mode is selected based on machine type and protection strategy. Electrical and Environmental Data Typical power consumption: 5.8 W Operating temperature range: –30 °C to +65 °C Relative humidity tolerance: up to 95% non-condensing Compliance: CE, CSA, and industrial EMC requirements Application Scope Steam and gas turbine monitoring Centrifugal and axial compressors Industrial pump systems Electric motor driven rotating assemblies High-speed rotating machinery protection systems FAQ Q1: Can magnetic pickups be used for full functionality?They can be used for speed measurement, but proximity probes are required for reliable low-speed, reverse rotation, and zero-speed detection. Q2: Is this module suitable for protection systems?Yes, it is designed as part of the 3500 rack protection and monitoring architecture. Q3: Does it support acceleration-based alarms?Yes, rotor acceleration monitoring can be enabled through configuration modes.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/50 133450-01 Tachometer Module
Overview The 3500/50 Tachometer Module (133450-01) is a dual-channel monitoring module designed for precise measurement of shaft rotational behavior in rotating machinery protection systems. It integrates speed, acceleration, and directional analysis within the 3500 rack platform and is intended for continuous condition monitoring of turbines, compressors, motors, and other critical assets. Measurement Capabilities This module processes input signals from proximity probes and magnetic pickups to derive multiple operational parameters: Rotational speed measurement in RPM or Hz Rotor acceleration calculation (speed rate-of-change) Reverse rotation detection and alarming Zero-speed detection for startup/shutdown monitoring Speed band and threshold-based alarm logic Peak value capture (maximum speed, reverse rotation events) Signal conditioning and Keyphasor-style reference output are provided to the rack backplane for synchronization and system-level diagnostics. Input Characteristics Two fully independent input channels Compatible transducers: Eddy current proximity probes (recommended for full functionality) Magnetic pickups (limited low-speed performance) Input voltage range: +10 V to –24 V Input impedance options: 20 kΩ standard configuration 40 kΩ TMR configuration 7.15 kΩ internal barrier version Maximum input frequency: up to 20 kHz (application-dependent) Low-speed detection: Proximity probes support near-zero operation Magnetic pickups limited at very low RPM ranges Output & Interface Functions Buffered signal output via coaxial connectors (per channel) Conditioned Keyphasor signal distributed to rack backplane Front-panel indicators: Module OK status Communication activity (TX/RX) Bypass mode status Analog proportional outputs available for trending and diagnostics (non-protection use) Operating Modes Selectable configuration profiles include: Speed monitoring with alarm setpoints Speed + zero-speed detection logic Speed + rotor acceleration analysis Speed + reverse rotation protection logic Speed band monitoring for operational stability zones Configuration is managed through 3500 rack configuration software. Electrical & Environmental Data Typical power consumption: 5.8 W Operating temperature range: –30 °C to +65 °C Relative humidity: up to 95% non-condensing Compliance: CE, CSA and industrial EMC standards Applications Steam and gas turbines Centrifugal compressors Industrial electric motors Expansion turbines High-speed rotating equipment protection systems FAQ Q1: Can this module operate without proximity probes?It can accept magnetic pickups, but full low-speed and reverse detection performance requires proximity probes. Q2: Is this module suitable for zero-speed detection?Yes, when used with proximity probes, it supports reliable near-zero RPM detection. Q3: Does it provide protection-level outputs?It provides alarm logic and Keyphasor signals, integrated into the 3500 protection rack architecture.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/50 Tachometer Module for 3500 System
Product Description The Bently Nevada 3500/50 Tachometer Module is a dual-channel rotational speed monitoring module engineered for use within the Bently Nevada 3500 Series Machinery Protection System. The module continuously measures shaft rotational speed, rotor acceleration, and shaft rotation direction using proximity probes or compatible magnetic pickup sensors. Designed for critical turbomachinery and rotating equipment applications, the module processes real-time speed signals and compares them against configurable alarm thresholds defined through the 3500 Rack Configuration Software. The module also supports conditioned Keyphasor® signal distribution through the rack backplane, reducing the requirement for additional signal interface hardware. The Bently Nevada 3500/50 supports independent channel operation and provides flexible monitoring modes for speed alarming, acceleration analysis, reverse rotation indication, and zero-speed detection. Key Features Dual independent tachometer input channels Compatible with proximity probes and magnetic pickup sensors Real-time shaft speed and rotor acceleration monitoring Reverse rotation indication capability Configurable alarm thresholds and speed bands Integrated peak speed and reverse rotation event storage Buffered transducer outputs available on front panel Keyphasor® signal conditioning and backplane distribution LED diagnostics for module condition and communication status Rack-based configuration through 3500 software platform Technical Specifications Parameter Specification Product Type Tachometer Monitoring Module Series 3500 Machinery Protection System Channels 2 Independent Channels Supported Sensors Proximity Probes, Magnetic Pickups Input Voltage Range +10 VDC to –24 VDC Standard Input Impedance 20 kΩ TMR Input Impedance 40 kΩ Internal Barrier Impedance 7.15 kΩ Buffered Outputs 1 Coaxial Output per Channel Typical Power Consumption 5.8 Watts Alarm Functions Speed, Speed Band, Acceleration, Reverse Rotation Configuration Method 3500 Rack Configuration Software Front Panel Indicators OK, TX/RX, Bypass Data Retention Peak-Hold Speed and Rotation Events Operating Modes The module can be configured in several monitoring combinations depending on machine protection requirements: Speed Monitoring with Alarm Setpoints and Speed Band Detection Speed Monitoring with Zero-Speed Notification Speed Monitoring with Rotor Acceleration Alarming Speed Monitoring with Reverse Rotation Detection Input and Signal Compatibility The module accepts dynamic pulse signals from: Eddy current proximity probes Magnetic pickup transducers Magnetic pickup sensors are supported for standard speed measurements; however, they are not recommended for applications requiring highly accurate low-speed detection, reverse rotation analysis, or zero-speed monitoring due to reduced signal edge quality at low rotational velocities. Application Areas Typical applications include: Steam turbines Gas turbines Compressors Pumps Motors Gearboxes Industrial rotating machinery Power generation equipment Engineering Notes The Bently Nevada 3500/50 is intended for machinery condition monitoring and alarm annunciation. It is not designed to function as an independent overspeed trip device or closed-loop speed control system. Protective shutdown applications requiring SIL-rated or redundant overspeed protection should use dedicated overspeed systems compliant with applicable machinery safety standards. FAQ Can the 3500/50 module detect reverse shaft rotation? Yes. The module supports reverse rotation indication when configured with compatible proximity probe inputs. Does the module support magnetic pickup transducers? Yes. Magnetic pickups are supported for standard speed monitoring applications, although proximity probes are preferred for low-speed and directional measurements. Can the module replace a dedicated Keyphasor module? In many applications, yes. The module can distribute conditioned Keyphasor® signals through the 3500 rack backplane. Is the module suitable for overspeed trip protection? No. The module is intended for monitoring and alarm indication only and should not be used as the primary overspeed shutdown system.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/45 140072-02 Position Monitor Module
Product Description The Bently Nevada 3500/45-140072-02 serves as the front-end processing module within the 3500 Position Monitor system, designed for high-precision measurement of mechanical shaft and structural displacement parameters. It is engineered for continuous monitoring of axial movement, thermal expansion behavior, and valve positioning in rotating machinery systems. This module operates in conjunction with a rear I/O assembly (140072-04) and integrates directly into the Bently Nevada 3500 rack architecture for industrial machinery protection and condition monitoring. Measurement Functions The system is built to process a wide range of displacement-based measurements, including: Axial (thrust) shaft position Differential expansion (standard and advanced ramp configurations) Complementary and dual-ramp differential expansion Casing thermal expansion Valve position monitoring Rotary and linear displacement behavior tracking Channel pairing architecture enables simultaneous execution of multiple measurement functions for enhanced diagnostic coverage. Input Compatibility Total channels: 4 independent inputs Supported sensor types: Eddy current proximity probes (e.g., 3300 XL series) Rotary Position Transducers (RPT) DC LVDTs (linear variable differential transformers) AC LVDTs Rotary potentiometers Input impedance characteristics: Proximity / RPT: ~10 kΩ AC LVDT: ~137 kΩ Rotary potentiometer: ~200 kΩ DC LVDT: high impedance (MΩ range) Rack-powered operation with configurable I/O dependencies Signal Processing Capabilities Simultaneous DC and AC signal processing for static and dynamic displacement tracking Programmable alarm thresholds for Alert and Danger conditions per channel Advanced digital filtering for noise reduction and signal stabilization High-resolution conversion for precise displacement measurement Fully integrated diagnostics within 3500 system architecture Measurement Scaling Characteristics Thrust position: 3.94 or 7.87 mV/µm Differential expansion: 0.394 or 0.787 mV/µm Ramp differential expansion: 0.394 to 7.874 V/mm depending on configuration Complementary DE: 0.394 to 3.937 V/mm range DC LVDT case expansion: Approximately 0.05–0.22 V/mm AC LVDT / valve position: 9.45–28.74 mV/V/mm Outputs & System Integration Digital alarm outputs for system-level protection logic Buffered analog outputs via rear I/O module (140072-04) Communication compatibility: Modbus RTU Ethernet-based system integration Fully compatible with 3500 rack monitoring and control infrastructure Mechanical Design Module format: front-position 3500 series rack card Dimensions: 241.3 × 24.4 × 241.8 mm Weight: 0.91 kg Designed for hot-swappable installation within compatible racks Environmental Ratings Operating temperature range: −40°C to +85°C Designed for continuous-duty industrial monitoring environments Suitable for long-term deployment in high-reliability machinery systems Typical Applications Steam and gas turbine axial position monitoring Compressor thrust and differential expansion tracking Valve actuation and position feedback systems Power generation rotating equipment Industrial machinery thermal expansion monitoring FAQ Q: Does this module support both AC and DC displacement sensors?A: Yes. It supports DC LVDTs, AC LVDTs, proximity probes, and rotary potentiometers in a single platform. Q: Is the rear I/O module required for operation?A: Yes. The 140072-04 rear I/O module is required for full system functionality and signal routing.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42M-01-05 Seismic Monitor Module
Product Description The Bently Nevada 3500/42M-01-05 is a four-channel machinery condition monitoring unit designed as an upgraded variant of the 3500/42 platform. It is engineered to process and evaluate vibration and position-related signals from multiple sensor types, delivering continuous protection and diagnostic data for critical rotating machinery. This model incorporates standard Proximitor/Seismic I/O architecture (Option 01) combined with hazardous area certification (Option 05), making it suitable for installations in ATEX, IECEx, and CSA Class I, Zone 2 environments. The module is deployed within the Bently Nevada 3500 rack system and is typically used in turbine trains, compressors, pumps, and other high-value rotating assets requiring uninterrupted condition monitoring. System Monitoring Capabilities The module processes multiple mechanical parameters through configurable channel pairing. Each pair can execute dual measurement functions depending on system configuration. Supported measurement variables include: Shaft radial vibration Axial thrust position Eccentricity monitoring Differential expansion tracking Casing velocity vibration Acceleration measurement REBAM vibration analysis Shaft absolute displacement Circular acceptance region evaluation This flexible structure allows simultaneous analysis of shaft dynamics and casing behavior across multiple operating conditions. Input Configuration & Electrical Data Channel capacity: 4 independent inputs Supported transducers: Proximitor eddy-current probes Velomitor velocity sensors Industrial accelerometers Input impedance: 10 kΩ (standard I/O configuration) Typical power consumption: ~7.7 W Rack-powered operation via 3500 system backplane Signal Processing & Filtering Frequency response options: 4 Hz to 4000 Hz (standard mode) 1 Hz to 600 Hz (alternate configuration) Low-frequency gap filter: −3 dB at ~0.09 Hz for drift suppression Not-1X rejection band: 60 cpm to 15.8× running speed Vector-based filtering (1X / 2X): Constant-Q architecture High attenuation performance (~−57.7 dB typical) Smax tracking range: 0.125× to 15.8× running speed Output Interfaces & Diagnostics Buffered analog outputs: one coaxial connector per channel Output protection: short-circuit resistant design Front panel indicators: System health (OK) Communication activity (TX/RX) Bypass status Alarm relay functions are handled via external 3500 relay modules Hazardous Area Compliance Option 05 certification package includes: ATEX compliance IECEx certification CSA Class I, Zone 2 approval Designed for deployment in classified industrial environments Suitable for continuous-duty machinery protection applications Performance Characteristics Measurement accuracy: high-stability vibration and displacement processing Multi-parameter correlation for early fault detection Real-time signal conditioning for protection and diagnostics Stable long-term operation under continuous monitoring loads Typical Applications Gas and steam turbine systems Centrifugal and axial compressors Industrial pumping systems Refinery and offshore rotating equipment Power generation machinery trains FAQ Q: What does the 01-05 configuration represent?A: 01 refers to standard Proximitor/Seismic I/O, while 05 indicates hazardous area certification for Zone 2 applications. Q: Can this module process multiple sensor types simultaneously?A: Yes. It supports proximity, velocity, and acceleration inputs across four independent channels.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42M Proximitor Seismic Monitor Module
Product Description The Bently Nevada 3500/42M is a four-channel machinery protection and condition monitoring module designed for continuous acquisition and processing of vibration, displacement, and dynamic motion signals. It interfaces with proximity probes and seismic sensors, converting raw transducer inputs into calibrated diagnostic parameters used for machinery protection and condition assessment. The module operates within the Bently Nevada 3500 rack system and is typically applied in high-integrity rotating equipment monitoring environments where real-time fault detection and shutdown protection logic are required. Measurement Capabilities Each input channel can be independently assigned to one of several monitoring functions. Channel pairs support dual-function operation for enhanced flexibility in machinery diagnostics. Supported measurement types include: Radial shaft vibration Axial thrust position Shaft eccentricity Differential expansion monitoring Casing velocity vibration Acceleration response analysis REBAM vibration detection Shaft absolute displacement Circular acceptance region evaluation This configuration enables simultaneous analysis of shaft dynamics and casing behavior across multiple measurement domains. Input Configuration & Electrical Characteristics Total channels: 4 independent inputs Sensor compatibility: Eddy-current proximity probes Velocity transducers Accelerometers Input impedance: Standard configuration: 10 kΩ TMR configuration: approximately 50 kΩ (bussed architecture) Typical power consumption: ~7.7 W Designed for rack-supplied operation within 3500 system backplane Signal Processing & Filtering Frequency response options: 4 Hz to 4000 Hz (standard mode) 1 Hz to 600 Hz (low-frequency configuration) Gap filtering: −3 dB at approximately 0.09 Hz for baseline drift suppression Not-1X suppression band: 60 cpm to 15.8× running speed Vector filtering (1X / 2X): Constant-Q response architecture High rejection performance (~−57.7 dB typical) Circular acceptance region processing derived from radial vibration vector analysis Measurement Scaling & Sensitivity Radial / thrust / eccentricity: 3.94 or 7.87 mV/µm Differential expansion: 0.394 or 0.787 mV/µm REBAM mode: 40 or 80 mV/µm Acceleration: 10 mV/(m/s²) ≈ 100 mV/g Velocity: 20 / 5.8 / 4 mV/(mm/s) peak (configuration dependent) Shaft absolute displacement: 3.94 or 7.87 mV/µm Outputs & System Indicators Buffered analog outputs via individual coaxial connectors per channel Short-circuit protected output design Front-panel diagnostics: System status (OK) Communication activity (TX/RX) Bypass mode indication External relay logic handled through separate 3500 relay modules Reliability & Operating Design Continuous-duty machinery protection architecture High stability signal conditioning for long-term monitoring Designed for integration into safety-critical rotating equipment systems Supports redundant system configurations when deployed in TMR architectures Typical Applications Gas and steam turbine monitoring systems Centrifugal and axial compressors Industrial pump and fan trains Power generation rotating machinery Oil & gas process equipment FAQ Q: Can each channel perform different measurement functions?A: Yes. Channels are independently configurable, and paired channels can execute dual measurement functions simultaneously. Q: Does the module support both displacement and vibration analysis?A: Yes. It processes proximity-based displacement along with seismic velocity and acceleration signals.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42-09-05 Seismic Monitor Module
Product Description The Bently Nevada 3500/42-09-05 is a four-channel machinery protection module engineered for continuous monitoring of vibration, shaft displacement, and casing dynamics in critical rotating equipment. It is part of the 3500 protection platform and is designed for environments requiring certified hazardous-area operation. This version incorporates Type 09 I/O architecture and Option 05 hazardous location compliance, making it suitable for installations in ATEX / IECEx / CSA Class I, Zone 2 classified areas. System Function Overview The module processes signals from multiple sensor types and converts them into calibrated mechanical condition data used for protection and diagnostics. Supported measurement outputs include: Shaft radial vibration Axial thrust position Shaft eccentricity tracking Differential expansion monitoring Casing velocity vibration Acceleration response REBAM vibration analysis Shaft absolute and orbit-based evaluation Circular acceptance region diagnostics Each channel pair can be configured to execute dual measurement functions, enabling flexible protection logic for complex machine behavior. Input Architecture Total channels: 4 independent inputs Supported transducers: Proximitor displacement probes Velomitor velocity sensors Accelerometers HTVS sensor variants Input impedance: 10 kΩ (proximity and acceleration measurement paths) Designed for direct integration with 3500 rack I/O termination system Signal Processing & Filtering Direct frequency response: 4 Hz to 4000 Hz (standard mode) 1 Hz to 600 Hz (low-frequency configuration) Gap filter: −3 dB at ~0.09 Hz (baseline drift suppression) Not-1X rejection band: 60 cpm to 15.8× running speed, ~−34.9 dB attenuation Vector filtering (1X / 2X): Constant-Q design High out-of-band rejection (~−57.7 dB typical) Measurement Scaling Radial / thrust / eccentricity: 3.94 or 7.87 mV/µm Differential expansion: 0.394 or 0.787 mV/µm REBAM mode: 40 or 80 mV/µm Acceleration input: 10 mV/(m/s²) ≈ 100 mV/g Velocity input: Multiple scaling options: 20 / 5.8 / 4 mV/(mm/s) peak Outputs & Diagnostics Buffered analog output per channel (coaxial interface) Output protection: short-circuit resistant Front-panel indicators: System status (OK) Communication activity (TX/RX) Bypass mode indication No onboard relay outputs; external relay modules required for alarm switching Environmental & Safety Compliance Hazardous area approvals: ATEX IECEx CSA Class I, Zone 2 (Option 05) Designed for use in industrial machinery protection systems in classified environments High-reliability operation under continuous monitoring duty cycles Accuracy & Performance Measurement accuracy: ±0.33% typical ±1% maximum under full operating range Stable long-term signal conditioning for predictive maintenance applications High-resolution digital processing for vibration and displacement integrity Mechanical Characteristics Module format: 3500 Series rack-mounted card I/O type: Type 09 Prox/Velom I/O with internal termination Installation: hot-swappable within compatible rack systems Designed for high-density monitoring configurations Typical Applications Gas and steam turbines Centrifugal compressors Pumps and process equipment Offshore and refinery rotating machinery Power generation monitoring systems FAQ Q: Is this module suitable for hazardous locations?A: Yes. Option 05 provides ATEX / IECEx / CSA Zone 2 certification for classified environments. Q: Can it process both proximity and seismic signals?A: Yes. It supports mixed sensor inputs including proximity probes, velocity, and acceleration transducers.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42 125972-02 Vibration Monitor Module
Product Description The Bently Nevada 3500/42-125972-02 is a four-channel machinery condition monitoring module developed for continuous protection of rotating and reciprocating equipment. It integrates proximity displacement sensing and seismic vibration inputs into a unified diagnostic platform, delivering real-time measurement of shaft behavior and casing dynamics. The module is designed for integration within the Bently Nevada 3500 rack system and is commonly deployed in high-criticality assets where early detection of vibration, misalignment, and bearing degradation is required. System Monitoring Functions The unit supports multi-parameter analysis across all four channels, including: Shaft displacement (radial vibration) Axial thrust position Vibration velocity (casing vibration) Acceleration monitoring Phase analysis Bearing wear condition tracking Shaft dynamic behavior trending Each channel can be independently configured for proximity or seismic measurement, enabling flexible protection strategies across complex machinery trains. Input & Measurement Architecture Channel capacity: 4 independent inputs Supported sensor types: Eddy-current proximity probe systems Seismic velocity transducers Accelerometers Bearing wear monitoring supported on dedicated channel configuration Signal processing includes displacement, velocity, acceleration, and phase extraction Designed for continuous operation in harsh industrial environments Communication & Output Interfaces Analog outputs for control system integration Digital alarm outputs for event signaling Ethernet interface for high-speed system communication RS-485 Modbus protocol support for SCADA/DCS connectivity Real-time data streaming for condition monitoring systems Electrical & Processing Characteristics Supply voltage: 24 VDC nominal (rack powered) Embedded digital signal processing: Filtering and noise suppression Peak detection algorithms Trend and historical data support High-resolution conversion for accurate vibration and displacement analysis Continuous self-diagnostic monitoring for module health Performance Specifications Measurement types: Displacement (proximity-based shaft motion) Velocity (seismic casing vibration) Acceleration (high-frequency dynamics) Phase relationship monitoring Bearing wear indication Multi-parameter correlation for fault detection and early warning capability Mechanical & Installation Data Dimensions: 88 mm × 483 mm × 225 mm Weight: 0.91 kg Installation: 3500 Series rack-mounted module Designed for hot-swappable replacement within compatible rack systems Environmental Ratings Operating temperature: −40°C to +85°C Storage temperature: −40°C to +85°C Industrial-grade construction for continuous-duty environments Designed for high-reliability operation in critical asset monitoring Key Engineering Features Four-channel mixed-signal vibration and proximity monitoring Bearing wear detection integrated into condition analysis Configurable alarm thresholds for early fault identification Multi-protocol communication support (Ethernet + Modbus RS-485) Suitable for continuous protection of high-value rotating machinery Application Areas Gas and steam turbines Centrifugal and axial compressors Industrial pump systems Power generation equipment Oil & gas rotating machinery trains FAQ Q: Can each channel be configured independently?A: Yes. Each of the four channels can be individually assigned to proximity or seismic measurement modes. Q: Does this module support modern SCADA integration?A: Yes. It supports Ethernet and RS-485 Modbus communication for integration with DCS and SCADA platforms.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42 125672-02 Seismic Monitor Module
Product Description The Bently Nevada 3500/42-125672-02 is a four-input channel monitoring module designed for integrated vibration and shaft position supervision within the 3500 protection system. It processes both proximity displacement and seismic sensor signals, converting them into calibrated engineering data used for machinery protection and condition diagnostics. The unit is engineered for API 670-compliant monitoring architectures and is typically deployed on critical rotating equipment where multi-parameter vibration analysis and shaft behavior tracking are required. Monitoring Capabilities The module supports a broad range of measurement functions, configurable per channel pair: Radial shaft vibration Axial thrust position Shaft eccentricity Differential expansion Velocity-based casing vibration Acceleration monitoring REBAM dynamic vibration analysis Shaft absolute measurement Circular acceptance region evaluation Channel pairing allows simultaneous execution of two measurement functions per pair, enabling flexible protection logic for complex machinery dynamics. Input & Electrical Characteristics Total channels: 4 independent inputs Sensor compatibility: Eddy current proximity probe systems Velocity transducers Accelerometers (seismic sensors) Typical power draw: ~7.7 W Input impedance: ~10 kΩ for proximity and acceleration inputs Rack-powered module (nominal 24 VDC supply via 3500 system backplane) Measurement Scaling & Sensitivity Radial / thrust / eccentricity: 3.94 mV/µm or 7.87 mV/µm Differential expansion: 0.394 mV/µm or 0.787 mV/µm REBAM mode: 40 mV/µm or 80 mV/µm Acceleration input: 10 mV/(m/s²) ≈ 100 mV/g Velocity input: Multiple selectable ranges (typical 4–20 mV/mm/s peak equivalents depending on configuration) Signal Processing High-resolution digital conditioning with programmable scaling Real-time alarm evaluation against alert and danger thresholds Supports multiple filtering and diagnostic algorithms depending on configuration Designed for stable long-term operation in continuous monitoring environments Outputs & Diagnostics Individual buffered analog outputs per channel (coaxial interface) Output protection: short-circuit resistant Front panel indicators: System status (OK) Communication activity (TX/RX) Bypass mode indication No onboard relay outputs; external relay logic handled via dedicated 3500 relay modules Mechanical & Physical Data Dimensions: 241.3 × 24.4 × 241.8 mm Weight: 0.91 kg Installation: 3500-series rack mounted, hot-swappable design Ruggedized industrial card form factor for continuous service operation Environmental Ratings Operating temperature: −20°C to +65°C Storage temperature: −40°C to +85°C Relative humidity: 10% to 95% non-condensing Vibration tolerance: up to 2 g (5–200 Hz range) Shock resistance: 15 g, 11 ms pulse Protection class: IP20 (rack-dependent enclosure conditions) Compliance & Reliability Designed in accordance with API 670 machinery protection requirements, ensuring compatibility with standardized turbine and rotating equipment protection architectures. The module supports hot-swap replacement without system shutdown when installed in a compliant 3500 rack. Typical Applications Steam and gas turbines Centrifugal and axial compressors Industrial pumps and fans Power generation rotating trains Oil & gas processing machinery FAQ Q: Can this module handle both seismic and proximity inputs simultaneously?A: Yes. Each channel pair can be configured to process different sensor types depending on monitoring requirements. Q: Does the module include built-in relays?A: No. Alarm relay functions are handled by separate 3500 relay modules within the rack system.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/42 Proximitor Seismic Monitor Module
Product Description The Bently Nevada 3500/42 is a four-channel condition monitoring module engineered for continuous vibration and shaft position supervision within the 3500 machinery protection architecture. It processes inputs from proximity displacement probes as well as seismic velocity and acceleration sensors, converting raw signals into calibrated measurements for alarm evaluation and machinery diagnostics. This module is widely applied across rotating equipment trains where both displacement-based and seismic-based monitoring are required in a single platform. It supports flexible configuration per channel, allowing operators to assign different measurement functions depending on machine dynamics and protection strategy. System Function Overview Simultaneous monitoring of up to 4 independent channels Accepts proximity probes and seismic transducers in mixed configurations Real-time signal conditioning with digital filtering and scaling Continuous comparison against configurable alarm and danger thresholds Integration into 3500 rack architecture with dedicated I/O modules Technical Specifications Input Characteristics Channel count: 4 independent measurement channels Supported sensors: Eddy-current proximity systems (e.g., 3300 / 3300 XL / 7200 series) Velocity transducers Accelerometers (seismic input types) Input impedance: Proximity: ~10 kΩ Seismic: ~10 kΩ Typical power consumption: ~7.0 W Transducer compatibility: externally powered probe systems with conditioned return signals Measurement Capabilities (Channel Configurable)Each channel can be configured for: Radial vibration (shaft relative displacement) Thrust position (axial displacement monitoring) Eccentricity tracking Velocity measurement (seismic-based) Acceleration measurement REBAM dynamic vibration analysis mode Signal Processing & Filtering Direct frequency band: 4 Hz to 4,000 Hz (standard configuration) Low-frequency option: 4 Hz to 600 Hz (application dependent) Gap filter cutoff: approximately −3 dB at 0.09 Hz (drift suppression) Not-1X filtering range: 60 cpm up to 15.8× running speed Vector filters (1X / 2X): Constant-Q response characteristics High attenuation outside passband (~−57 dB typical) Smax tracking: 0.125× to 15.8× running speed range Outputs & System Interface Buffered analog outputs per channel via coaxial connectors Output impedance: ~550 Ω, short-circuit protected Front panel diagnostics: System OK status Rack communication (TX/RX) Bypass mode indication Relay outputs are handled externally via dedicated 3500 relay modules (e.g., 3500/32M, 3500/33) Performance Characteristics Amplitude accuracy: typically within ±3% of full scale Phase accuracy: approximately ±2° Frequency response: Proximity inputs: DC to 4 kHz Seismic inputs: 4 Hz to 4 kHz Environmental & Mechanical Operating temperature: −30°C to +65°C Relative humidity: up to 95% non-condensing EMC compliance: industrial-grade electromagnetic compatibility standards Module format: full-height 3500 series card Rack requirement: 2-slot configuration (monitor + I/O interface module) Typical Applications Steam and gas turbine vibration monitoring Compressor train protection systems Pump and fan condition monitoring Power generation rotating machinery Oil & gas rotating equipment diagnostics FAQ Q: Can this module process both seismic and proximity inputs simultaneously?A: Yes. Each channel can be independently assigned to either proximity or seismic measurement types depending on configuration. Q: Does the 3500/42 include relay outputs?A: No. Relay logic is implemented through external 3500 relay modules such as the 3500/33.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/40M-01-05 Vibration and Position Monitoring Module
Product Description The Bently Nevada 3500/40M-01-05 Proximitor Monitor is a four-channel condition monitoring module designed for continuous vibration and shaft position measurement within the 3500 Machinery Protection System. It processes proximity probe signals and converts them into stable, engineering-unit data for protection and diagnostics of rotating equipment. This module supports flexible channel pairing, allowing configuration for multiple measurement tasks including radial vibration, thrust position, eccentricity, differential expansion, and REBAM monitoring. It is commonly deployed in turbine trains, compressors, generators, and other critical rotating assets where early detection of mechanical instability is required. Core Functional Characteristics Accepts input from up to 4 proximity transducers Independent channel configuration with paired logic for advanced measurement modes Real-time signal conditioning and alarm comparison against user-defined setpoints Integrated buffered outputs for each channel for external diagnostics or analysis systems Designed for high reliability in continuous machinery protection environments Technical Specifications Input Configuration Channels: 1 to 4 proximity probe inputs Sensor type: Eddy-current proximity transducers Input impedance: 10 kΩ (standard configuration), up to 50 kΩ in TMR configurations Transducer excitation: regulated −24 VDC supply Measurement Capabilities Radial vibration sensitivity: 3.94 mV/µm (100 mV/mil) or 7.87 mV/µm (200 mV/mil) Thrust position and eccentricity: equivalent scaling to radial vibration inputs Differential expansion scaling: 0.394 mV/µm (10 mV/mil) REBAM high-sensitivity mode: up to 80 mV/µm (2000 mV/mil) Signal Processing Bandwidth Direct filter range: 4 Hz to 4000 Hz (configurable) Low-frequency gap filter: −3 dB at approximately 0.09 Hz Not-1X filter range: 60 cpm up to 15.8× running speed Vector processing: constant-Q filtering with high stopband rejection (~−57 dB typical) Smax tracking range: 0.125 to 15.8× running speed Outputs and Diagnostics Buffered coaxial outputs per channel (short-circuit protected) Output impedance: 550 Ω Front-panel status indicators: OK, TX/RX communication, bypass mode Integrated system communication with 3500 rack architecture Applications Steam and gas turbines Centrifugal compressors Pumps and industrial drivetrains Power generation rotating equipment Oil & gas process machinery monitoring systems FAQ Q: Can the module perform both vibration and position measurement simultaneously?A: Yes. Channel pairing allows simultaneous configuration for vibration, thrust, and related shaft dynamics measurements. Q: Is this module compatible with all 3500 rack systems?A: It is designed for standard Bently Nevada 3500 rack architectures and integrates directly with compatible I/O modules.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/40-03-01 Proximitor Vibration Monitoring Module
Product Description The Bently Nevada 3500/40-03-01 Proximitor Monitor Module is a condition monitoring unit within the 3500 Machinery Protection System, engineered for high-accuracy shaft and vibration measurement using proximity probe technology. It is designed for paired-channel operation architecture, enabling coordinated measurement processing for machine dynamics such as radial vibration, axial thrust position, shaft eccentricity, differential expansion, and REBAM® analysis. The module integrates directly into the 3500 rack platform for continuous machinery health monitoring in high-criticality rotating equipment. Measurement Functions The module processes signals from Bently Nevada proximity transducers and converts them into calibrated mechanical parameters: Radial vibration measurement Axial thrust position monitoring Shaft eccentricity detection Differential expansion tracking REBAM® (rotor dynamics and alignment analysis) Channel operation is structured in paired configuration to support synchronized measurement behavior. Signal Processing & Frequency Response Advanced filtering architecture ensures stable and accurate measurement under varying operating conditions: Radial vibration filtering: 4 Hz to 4 kHz (direct mode) 1 Hz to 600 Hz (alternate mode) Thrust / expansion processing: Direct response: 1.2 Hz Gap filter: 0.41 Hz REBAM spike filtering range: 0.152 Hz to 8,678 Hz (programmable) Digital conditioning reduces noise and improves low-frequency resolution Electrical Characteristics Typical Power Consumption: 7 W Transducer Excitation Voltage: –24 VDC Input Impedance: 10 kΩ (standard configuration) 50 kΩ (TMR parallel configuration) Buffered Output Impedance: 550 Ω Output Protection: Short-circuit protected per channel Signal Output: Dedicated buffered output per channel Alarm & Measurement Accuracy Adjustable setpoints: 0–100% of full scale Measurement accuracy: ±0.13% Alert delay range: 1–60 seconds Danger delay range: 0.1–60 seconds Independent alarm configuration per measurement channel Supports both warning and trip-level logic thresholds System Integration Compatible with Bently Nevada 3500 rack architecture Direct interface with proximity transducer systems Provides real-time buffered signals for external diagnostics Supports condition monitoring and protection system integration Designed for continuous operation in critical machinery environments Mechanical Data Dimensions: 241.3 × 24.4 × 241.8 mm Weight: 0.91 kg Rack-mounted modular design within 3500 system chassis Hot-swappable architecture (system dependent configuration) Environmental Ratings Operating Temperature: 0°C to +65°C Compliance: ATEX, CSA, EN 61010-1, EMC standards Designed for electrically noisy and vibration-intensive environments Suitable for continuous industrial monitoring applications Application Areas Steam and gas turbine vibration monitoring Compressor shaft displacement and thrust control Pump radial vibration diagnostics Power generation rotating machinery protection Oil & gas critical equipment condition monitoring FAQ Q1: What makes this model different from multi-channel versions?This configuration uses paired-channel architecture optimized for specific measurement synchronization requirements. Q2: Can it measure multiple vibration parameters simultaneously?Yes, it supports multiple derived parameters including vibration, thrust, eccentricity, and expansion. Q3: Is it compatible with all 3500 system racks?Yes, it is designed for standard Bently Nevada 3500 rack integration.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/40-02-01 Proximitor Monitor 4 Channel
Product Description The Bently Nevada 3500/40-02-01 Proximitor Monitor is a four-channel measurement module designed for the 3500 Machinery Protection System. It processes input signals from proximity probes and converts them into precise mechanical condition data for rotating equipment protection and performance monitoring. This module is typically deployed in critical machinery systems where continuous evaluation of shaft behavior is required, including vibration, axial movement, and dynamic displacement measurements. The “02-01” configuration uses a rear I/O termination design that simplifies field wiring and supports easier maintenance access. Measurement Capabilities Each channel independently processes proximity probe inputs to provide multiple machine condition parameters: Radial vibration monitoring Axial thrust position measurement Shaft eccentricity detection Differential expansion tracking REBAM (Relative Expansion Bending and Alignment Monitoring) Supports 1 to 4 probe inputs per module with channel-level configuration flexibility. Signal Conditioning & Filtering The module incorporates advanced digital signal processing to ensure measurement stability and accuracy: Programmable direct filtering: 4 Hz to 4000 Hz or 4 Hz to 600 Hz Gap filtering: –3 dB cutoff at 0.09 Hz Not-1X filtering: 60 cpm to 15.8× running speed 1X / 2X vector filters: Constant-Q design with –57.7 dB rejection Smax filtering range: 0.125 to 15.8× running speed These filtering options enable accurate separation of operating speed components and transient vibration events. Electrical Performance Typical Power Consumption: 7.7 W Transducer Supply: –24 VDC excitation Input Impedance: 10 kΩ (standard configuration) Buffered Outputs: One per channel via coaxial connector Output Protection: Short-circuit protected signal outputs Output Impedance: 550 Ω System Outputs & Interfaces Real-time buffered vibration signals available per channel Compatible with Bently Nevada 3500 rack architecture Supports external termination via rear I/O module (02-01 configuration) Hot-swappable I/O module design for maintenance without system shutdown Integrated rack communication via TX/RX backplane interface Front Panel Indicators OK LED: Indicates module health status TX/RX LED: Displays rack communication activity BYPASS LED: Indicates bypass operation mode Mechanical Data Monitor Module Dimensions: 241 × 24.4 × 242 mm Weight: 0.91 kg I/O Module (02-01 External Termination) Dimensions: 241 × 24.4 × 99.1 mm Weight: 0.4 kg Installation Rear rack-mounted I/O configuration Designed for modular integration within 3500 system chassis Environmental Specifications Operating Temperature: –30°C to +65°C Storage Temperature: –40°C to +85°C Humidity: 0–95% non-condensing Designed for high-vibration and electrically noisy industrial environments Application Areas Gas and steam turbine shaft monitoring Centrifugal compressor vibration protection Pump radial and axial displacement monitoring Power generation rotating machinery diagnostics Oil & gas process equipment condition monitoring FAQ Q1: What does the 02-01 configuration indicate?It refers to an external termination I/O design that simplifies wiring and supports easier field maintenance. Q2: How many channels are supported?The module supports four independent proximity probe channels. Q3: Can the I/O module be replaced without shutdown?Yes, the design supports hot-swappable I/O modules for maintenance continuity.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/34 TMR Relay Module
Product Description The Bently Nevada 3500/34 TMR Relay Module is a high-integrity output component designed for safety-critical machinery protection systems requiring Triple Modular Redundancy (TMR). It is engineered for applications where continuous availability and fault tolerance are essential, aligning with principles commonly referenced in safety instrumented system architectures. The module operates within the Bently Nevada 3500 rack system and is used together with a dedicated TMR Rack Interface Module and multiple monitor modules to achieve 2-out-of-3 voting logic for signal validation and output control. Each relay channel integrates configurable Alarm Drive Logic, enabling condition-based switching decisions derived from multiple monitoring inputs across the rack. Redundant Architecture & Control Logic Triple Modular Redundant (TMR) relay design Three independent relay elements drive a single output path Supports 2-out-of-3 voting logic with external monitor modules Requires TMR Rack Interface Module for system integration Fully programmable logic using 3500 Rack Configuration Software Supports Boolean logic structures (AND / OR) Input sources include: Alarm alerts Danger conditions Not-OK system status Any monitored variable or combined signal set Electrical Performance Typical Power Consumption: 9.6 W Relay Configuration: Three DPDT relays internally arranged as SPST output structure Channel Operation Mode: Normally Energized (NE) per channel Arc Suppression: Not implemented in this design configuration Relay Construction: Industrial epoxy-sealed assembly for environmental resistance Relay Load Ratings & Service Life Contact Life Expectancy: up to 100,000 cycles under rated conditions DC Load Rating: 1.5 A @ 24 VDC AC Load Rating: 1 A @ 120 VAC Designed for stable switching performance in continuous duty environments Optimized for low failure probability in high-availability systems Status Indication & Diagnostics The module includes onboard LED indicators for real-time operational feedback: OK Indicator: Confirms module health and normal operation TX/RX Indicator: Shows active communication within the rack backplane Channel Alarm LEDs: Display active relay alarm state per channel Environmental Specifications Operating Temperature: –30°C to +65°C Storage Temperature: –40°C to +85°C Humidity: Up to 95% non-condensing Sealing: Epoxy encapsulated for vibration and contamination resistance Designed for harsh industrial machinery environments Functional Characteristics High-reliability TMR output architecture Fault-tolerant relay switching design Integrated alarm logic execution at channel level Compatible with 3500 rack-based monitoring and protection systems Supports continuous safety-critical operation in redundant configurations Typical Applications Gas turbine protection systems Compressor emergency shutdown logic High-integrity safety interlock systems Power generation machinery protection Critical rotating equipment with redundancy requirements FAQ Q1: What makes the TMR version different from standard relay modules?It uses three independent relay paths with voting logic to ensure output integrity in fault-tolerant systems. Q2: Does it require additional rack components?Yes, it must be used with a TMR Rack Interface Module and compatible monitor modules. Q3: Can it operate without configuration software?No, logic configuration requires Bently Nevada 3500 Rack Configuration Software.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/33-01-05 Relay Module 16 Channel
Product Description The Bently Nevada 3500/33-01-05 is a rack-based relay interface module designed for integration within the Bently Nevada 3500 Machinery Protection System. It delivers 16 independently configurable SPDT relay outputs used for machine protection logic, alarm handling, and interlock execution. The module operates as part of the 3500 rack architecture and is installed in any full-height slot located to the right of the Transient Data Interface (TDI). It is widely deployed in critical rotating machinery protection applications such as turbines, compressors, and large pump systems. The “01-05” configuration denotes a 16-channel relay output variant with a specific I/O/contact setup while maintaining identical core electrical and mechanical characteristics across standard configurations. Electrical Characteristics Total Relay Channels: 16 independent outputs Relay Type: SPDT (Form C contact structure) Typical Power Consumption: 5.8 W Arc Suppression: Integrated 250 Vrms suppression network Relay Construction: Epoxy-sealed contacts for enhanced vibration and contamination resistance Minimum Switching Load: 100 mA @ 5 VDC Contact Load Ratings DC Resistive Loads Maximum Current: 5 A Maximum Voltage: 125 VDC (standard configuration) / 30 VDC (failsafe variant) Power Handling: 70 W @ 24 VDC 10 W @ 48 VDC 9 W @ 60 VDC AC Resistive Loads Maximum Current: 5 A Maximum Voltage: 250 VAC Maximum Power: 1200 VA Low-Level Signal Operation Minimum Load Capability: 1 mA @ 1 VDC (gold-contact operation mode) Relay Configuration & Logic Functions Channels arranged in 4 groups of 4 outputs Each group selectable as Normally Energized (NE) or Normally De-Energized (ND) Fully programmable Alarm Drive Logic per channel Supports Boolean logic (AND / OR) for voting strategies Input sources include: Alert conditions Danger alarms Not-OK system status Measured variable signals from any rack monitor module Independent logic assignment for each relay channel Mechanical Data Main Module Dimensions: 241 × 24.4 × 242 mm Weight: 0.7 kg I/O Module Dimensions: 241 × 24.4 × 99.1 mm Weight: 0.4 kg Rack Installation Requirements Main unit: 1 full-height front slot I/O unit: 1 full-height rear slot Placement: Right side of TDI module in 3500 rack system Environmental Ratings Operating Temperature: –30°C to +65°C Storage Temperature: –40°C to +85°C Humidity: Up to 95% non-condensing Designed for continuous duty in harsh machinery monitoring environments Typical Applications Turbomachinery protection systems Compressor and turbine shutdown logic Pump vibration alarm interlocking Process safety and sequencing control Industrial condition monitoring systems FAQ Q1: What does the 01-05 configuration represent?It defines a specific relay output and I/O configuration variant while maintaining identical core module architecture. Q2: Can each relay channel be independently programmed?Yes. All 16 channels support independent Alarm Drive Logic configuration. Q3: Is the module suitable for safety interlock applications?Yes, it is commonly used for alarm annunciation and interlock logic in critical machinery systems.
$200.00 $100.00
-
Bently Nevada 162291-01 3500/33 | Bently Nevada Relay Output Module 16Ch
Product Overview The Bently Nevada 3500/33 (162291-01) is a rack-mounted relay interface module engineered for the 3500 Machinery Protection System. It provides 16 independent relay channels designed for configurable alarm execution, voting logic processing, and machine protection interlocks based on monitored condition data. The module is installed within the 3500 rack chassis, occupying full-height slots positioned to the right of the Transient Data Interface (TDI). It is commonly used for implementing shutdown logic, alarm annunciation, and protective system integration in rotating equipment environments. Electrical & Relay Performance Total Outputs: 16 independent relay channels Relay Configuration: SPDT (Form C contacts) Channel Grouping: 4 groups of 4 channels, configurable as NE or ND Switching Capability: Supports low-level and power-level switching depending on system design Minimum Switching Load: 100 mA @ 5 VDC DC Load Ratings Maximum Current: 5 A Maximum Voltage: 125 VDC (standard systems) / 30 VDC (failsafe configurations) Maximum Power: 70 W @ 24 VDC 10 W @ 48 VDC 9 W @ 60 VDC AC Load Ratings Maximum Current: 5 A Maximum Voltage: 250 VAC Maximum Power: 1200 VA Low-Level Contact Capability Minimum load: 1 mA @ 1 VDC (gold-contact compatible operation) Control Logic & Functional Behavior Fully programmable Alarm Drive Logic per channel Supports Boolean logic structures (AND / OR) Accepts multiple input sources: Alert status signals Danger alarm conditions Not-OK system status Measured variables from any rack monitor channel Enables voting logic configuration for redundant protection schemes Supports independent channel logic assignment across all 16 outputs Power & Reliability Typical Power Consumption: 5.8 W Relay Contact Life: Standard: ~10,000 mechanical/electrical cycles Extended variants: up to 100,000 cycles (depending on configuration and load conditions) Arc Suppression: Integrated 250 Vrms suppression network Relay Construction: Epoxy-sealed for environmental resistance and vibration tolerance Environmental Ratings Operating Temperature: –30°C to +65°C Storage Temperature: –40°C to +85°C Relative Humidity: up to 95% non-condensing Designed for continuous duty in machinery protection environments Mechanical Data Main Module Dimensions: 241 × 24.4 × 242 mm Weight: 0.7 kg I/O Module Dimensions: 241 × 24.4 × 99.1 mm Weight: 0.4 kg Rack Installation Front slot: 1 full-height position Rear slot: 1 full-height I/O position Placement: Right side of TDI module within 3500 rack architecture Application Areas Turbine and compressor protection systems Pump and motor condition monitoring shutdown logic Industrial alarm annunciation systems Process interlock and safety logic execution Rotating machinery vibration protection platforms FAQ Q1: Can each relay operate independently?Yes, all 16 relay outputs are individually configurable with dedicated alarm logic. Q2: Does the module support redundant protection logic?Yes, it supports voting logic and multi-input Boolean alarm structures for redundancy strategies. Q3: What is the installation position in the rack?It installs to the right of the TDI module using one full-height front and rear slot pair.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/33 16-Channel Relay Module
Product Overview The Bently Nevada 3500/33 16-Channel Relay Module is a full-height rack-mounted output module designed for integration within the Bently Nevada 3500 machinery protection system. It provides 16 independently configurable relay outputs used for alarm, shutdown, and control logic execution based on monitored machine condition data. The module installs in the rear of the 3500 rack system, positioned to the right of the Transient Data Interface (TDI) module. Multiple relay modules can be deployed within a single rack configuration depending on system design requirements. Key Technical Specifications Relay Output Characteristics Total Channels: 16 independent relay outputs Relay Type: SPDT (Single-Pole Double-Throw) Contact Configuration: Form C Switching Groups: 4 groups of 4 channels (selectable ND/NE operation) Relay Contact Life: ~10,000 switching cycles (typical load conditions) Arc Suppression: 250 Vrms integrated suppression circuitry Sealing: Epoxy-sealed relay construction for vibration resistance Power & Consumption Typical Power Consumption: 5.8 W Low thermal load suitable for dense rack installations Control & Logic Functions Fully programmable Alarm Drive Logic Supports AND / OR logic combinations Input sources include: Alert and Danger alarm states Not-OK system status Individual or grouped measured variables from rack channels Supports voting logic configuration per relay output Front Panel Indicators OK LED: Indicates normal module operation status TX/RX LED: Communication activity within 3500 rack backplane Channel Alarm LED: Indicates active relay alarm state Physical & Installation Data Main Module Dimensions: 241 × 24.4 × 242 mm I/O Module Dimensions: 241 × 24.4 × 99.1 mm Main Module Weight: 0.7 kg I/O Module Weight: 0.4 kg Rack Requirement: 1 full-height front slot (main module) 1 full-height rear slot (I/O module) Environmental & Reliability Industrial-grade epoxy sealed relay design High resistance to vibration and electrical noise Designed for continuous operation in machinery monitoring environments Relay arc suppression enhances long-term contact stability Typical Applications Turbomachinery protection systems Compressor and pump monitoring racks Vibration and condition monitoring alarm execution Plant-wide safety shutdown logic integration Power generation and process industry protection systems FAQ Q1: Can each relay be independently configured?Yes. Each of the 16 relay outputs can be individually programmed using alarm drive logic and voting configurations. Q2: Does the module support redundant logic conditions?Yes. The module supports voting logic and multi-input AND/OR conditions for redundancy and fault tolerance. Q3: Where is the module installed in the rack?It is installed to the right side of the TDI module, occupying both front and rear full-height slots.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/32M 125720-01 Relay Output Module
Product Description The Bently Nevada 3500/32M 125720-01 is a full-height relay interface module designed for the Bently Nevada 3500 Machinery Protection System. It delivers four isolated SPDT relay outputs that can be independently configured for protection, interlock, alarm annunciation, or shutdown logic across monitored rotating equipment. The module supports advanced Alarm Drive Logic, allowing relay actions to be driven by combined conditions such as Alert, Danger, Not-OK states, or Process Variable Limits (PPLs) sourced from any monitoring module within the 3500 rack. Logic operations can be structured using AND/OR combinations through the 3500 Rack Configuration Software. Installation is supported in any rack position located to the right of the Transient Data Interface Module. Its epoxy-sealed construction and diagnostic LED indicators make it suitable for continuous operation in high-reliability industrial environments. Key Features Four independent relay channels with configurable logic control SPDT relay architecture for flexible switching applications Supports Alarm Drive Logic using multi-channel voting schemes Accepts Alert, Danger, Not-OK, and PPL inputs from rack monitors Software-based configuration via 3500 Rack Configuration Software Epoxy-sealed relay construction for harsh environments Selectable relay energization mode (NE / NDE) Built-in LED diagnostics for module status, communication, and channel alarms Designed for integration into machinery protection and shutdown systems Technical Specifications Parameter Specification Brand Bently Nevada Model 3500/32M Part Number 125720-01 Series 3500 Machinery Protection System Product Type 4-Channel Relay Output Module Module Format Full-height rack module Relay Configuration 4 × SPDT relays Control Logic AND / OR programmable Alarm Drive Logic Input Sources Alert, Danger, Not-OK, PPL signals Power Consumption 5.8 W typical Module Supply Voltage 24 VDC (rack supplied) Arc Suppression 250 Vrms integrated suppression Minimum Switching Current 100 mA @ 12 VDC Max DC Switching Current 2 A @ 0–30 VDC DC Voltage Limit Up to 125 VDC AC Switching Rating 250 VAC max, 2 A Maximum Load Power 450 VA Contact Life 100,000 cycles @ rated load Operating Temperature -30°C to +65°C Storage Temperature -40°C to +85°C Humidity 95% RH non-condensing I/O Module Size 241 × 24.4 × 99.1 mm I/O Module Weight 0.4 kg Functional Operation Each relay channel operates independently and can be mapped to any monitored parameter within the rack. Logic programming allows: Alarm aggregation across multiple channels Shutdown sequencing based on voting logic Condition-based relay triggering Flexible interlock design for machinery protection This structure enables integration into turbine control systems, compressor safety shutdown loops, and plant-wide alarm systems. Application Scope Turbine protection and trip systems Compressor and pump safety shutdown circuits Generator alarm and interlock logic Industrial rotating machinery monitoring systems Process plant alarm annunciation panels FAQ What is the primary function of the 3500/32M module? It provides programmable relay outputs used for alarm signaling and machinery shutdown logic within a Bently Nevada 3500 protection rack. Can each relay be configured independently? Yes. All four SPDT outputs operate independently and can be assigned separate logic conditions. Is the module suitable for redundant protection systems? Yes. It is compatible with 3500 rack architectures used in high-availability protection systems. How is the relay logic configured? Relay behavior is defined through the 3500 Rack Configuration Software using AND/OR logic based on monitored conditions.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/32M 4-Channel Relay Module
Product Description The Bently Nevada 3500/32M 4-Channel Relay Module is a full-height relay output module designed for use within the Bently Nevada 3500 Machinery Protection System. The module delivers four independently configurable relay outputs for machinery alarm annunciation, shutdown logic, and process protection functions. Each relay channel supports programmable voting logic and can be configured using AND/OR alarm conditions through the 3500 Rack Configuration Software. The module can process alert, danger, Not-OK, and proportional value inputs from any monitor channel installed in the rack, allowing flexible integration into turbine, compressor, pump, and rotating equipment protection strategies. The relay module is engineered with epoxy-sealed SPDT relays and integrated arc suppression to improve operational reliability in industrial environments with frequent switching operations. Key Features Four independently programmable relay outputs Full-height module architecture for 3500 racks SPDT relay contacts with configurable energized states Supports complex AND/OR voting logic Compatible with alarm, danger, and Not-OK status inputs Integrated arc suppression for improved relay longevity Epoxy-sealed relays for environmental protection LED indicators for communication and alarm diagnostics Configurable using Bently Nevada 3500 Rack Configuration Software Designed for machinery protection and shutdown systems Technical Specifications Parameter Specification Brand Bently Nevada Model 3500/32M Product Type 4-Channel Relay Module System Compatibility 3500 Machinery Protection System Module Format Full-height Relay Channels 4 Relay Type Single-pole double-throw (SPDT) Relay Operation Normally Energized or Normally De-Energized selectable Typical Power Consumption 5.8 W Communication Indicators TX/RX LEDs Alarm Indicators Channel Alarm LEDs Status Indicator OK LED Relay Sealing Epoxy-sealed Arc Suppression Standard integrated suppressor Relay Contact Life 100,000 cycles at 5 A, 24 VDC / 240 VAC Minimum Switched Current 100 mA at 12 VDC Maximum DC Switching Current 2 A at 30 VDC DC Voltage Rating Up to 125 VDC AC Voltage Rating Up to 250 VAC Maximum AC Switching Current 2 A Maximum Switching Power 450 VA Operating Temperature -30°C to +65°C Storage Temperature -40°C to +85°C Humidity 95% non-condensing Main Module Dimensions 241 × 24.4 × 242 mm Main Module Weight 0.7 kg I/O Module Dimensions 241 × 24.4 × 99.1 mm I/O Module Weight 0.4 kg Rack Space Requirement 1 full-height front slot + 1 rear I/O slot Relay Logic Functions The Bently Nevada 3500/32M module supports programmable relay behavior for advanced machinery protection schemes. Each relay output can be assigned to: Alert conditions Danger alarms Not-OK monitor status Process variable thresholds Multi-channel voting logic Combined rack alarm conditions This flexibility allows the module to operate as part of shutdown systems, annunciators, interlocks, and plant-wide protection architectures. Application Areas Typical applications include: Turbine shutdown systems Compressor protection panels Generator alarm systems Critical pump monitoring Plant annunciation systems Rotating equipment trip logic Emergency protection circuits FAQ What is the function of the 3500/32M module? The module provides programmable relay outputs used for alarms, shutdowns, annunciation, and machinery protection logic within a 3500 monitoring rack. Can each relay channel be configured independently? Yes. Each of the four relay outputs supports independent configuration and separate voting logic assignments. What relay contact type is used? The module uses SPDT epoxy-sealed relays with integrated arc suppression for industrial reliability. Is the relay state configurable? Yes. Relay channels can be configured as Normally Energized or Normally De-Energized through onboard switch settings.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/25 125800-01 Keyphasor I/O Module
Product Description The Bently Nevada 3500/25 125800-01 Keyphasor® Input/Output Module is a dual-channel monitoring interface designed for rotational reference and phase measurement within the 3500 Machinery Protection System. This half-height module processes signals from proximity transducers and magnetic pickup sensors, converting them into stable digital timing pulses for precise shaft position tracking and synchronized vibration analysis. Engineered for continuous-duty turbomachinery environments, the module supports both Standard and TMR (Triple Modular Redundant) rack architectures. Internal terminations simplify installation by reducing external wiring requirements while improving long-term connection reliability in high-vibration applications. The module is commonly deployed in gas turbines, steam turbines, compressors, pumps, generators, and other rotating assets requiring accurate speed and phase reference signals for machinery diagnostics and protection systems. Key Features Dual independent Keyphasor input channels Compatible with proximity probes and magnetic pickups Internal termination configuration for simplified cabinet wiring Supports Standard and TMR 3500 rack systems High-speed pulse processing for synchronous measurements Hot-replaceable module design Integrated diagnostics for signal validation and module condition monitoring Stable phase reference for vector analysis and orbit measurements Suitable for both low-speed and high-speed rotating equipment API 670 compliant machinery protection functionality Technical Specifications Parameter Specification Brand Bently Nevada Series 3500 Series Model 3500/25 Part Number 125800-01 Product Type Keyphasor I/O Module Termination Style Internal Terminations Module Format Half-height module Input Channels 2 isolated channels Supported Sensors Proximity probes, magnetic pickups, optional optical sensors Input Voltage Range 12 to 32 VDC Maximum Input Current 10 mA Frequency Range 0 to 10 kHz typical Extended Frequency Capability Up to 20 kHz depending on sensor type Output Type TTL-compatible pulse output Buffered Output 0–10 VDC Output Current Maximum 20 mA Phase Accuracy Typical ±0.5° Rack Compatibility 3500 Standard and TMR racks Operating Temperature 0°C to +65°C Storage Temperature -40°C to +85°C Relative Humidity 5–95% non-condensing Vibration Resistance 5–2000 Hz, 2G Shock Resistance 30G, 11 ms Protection Rating IP20 Dimensions 24.2 cm × 11.2 cm × 2.5 cm Weight 0.38 kg Applications The Bently Nevada 3500/25 125800-01 module is used in machinery monitoring systems requiring accurate rotational timing references and phase synchronization, including: Steam and gas turbines Centrifugal compressors Industrial pumps Turbo generators High-speed motors Process plant rotating machinery Oil & gas production systems Power generation facilities Operational Advantages By generating accurate phase reference pulses, the module enables synchronized data collection across vibration monitoring channels. This improves machinery diagnostics such as: Shaft speed tracking Phase angle calculation Orbit analysis Vector vibration measurements Synchronous averaging Rotor dynamic analysis Internal terminations also reduce installation complexity and improve cabinet maintainability in critical industrial environments. FAQ What is the primary function of the 3500/25 module? The module provides rotational reference pulses used for speed measurement, phase calculations, and synchronized vibration monitoring within the Bently Nevada 3500 protection platform. Does the module support redundant systems? Yes. The module is compatible with both standard and Triple Modular Redundant (TMR) 3500 rack configurations. Which sensors can be connected to this module? The module accepts inputs from proximity probes, magnetic pickups, and in some applications optical sensors. Can the module be replaced while the system is operating? Yes. The module supports hot-swapping when used within compatible 3500 rack systems.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/25 125792-01 Keyphasor Module Unit
Product Description The Bently Nevada 3500/25 125792-01 Enhanced Keyphasor® module is a dual-channel, half-height timing and speed reference unit designed for the 3500 machinery protection platform. It processes raw shaft-related signals from proximity probes or magnetic pickups and converts them into structured digital timing pulses used across the monitoring system. These Keyphasor outputs provide a stable rotational reference required for advanced vibration diagnostics, including phase-based analysis and speed-dependent measurement functions. The module is commonly deployed in systems requiring high-resolution rotational tracking and multi-channel synchronization. This version is also backward compatible with earlier Keyphasor implementations and is positioned as a legacy precursor to newer 149369-01 revisions. Signal Processing Functionality Converts analog shaft signals into digital Keyphasor pulse streams Provides dual independent input processing channels Supplies precise rotational reference signals to the 3500 rack Ensures synchronized phase alignment across monitoring modules Supports redundant timing architectures for high-reliability systems Measurement & Diagnostic Capabilities Shaft rotational speed calculation up to high-speed machinery ranges Phase angle measurement for rotor dynamic analysis 1X vibration amplitude and vector-based diagnostics Order tracking for variable-speed machinery Supports synchronous waveform analysis across multiple channels Input / Output Characteristics Input ranges: Non-isolated configuration: +0.8 V to +21 V Isolated configuration: +5 V to –11 V Outputs: Digital Keyphasor pulse signal Front-panel buffered coaxial output Rear Euro-style terminal output Sensor compatibility: Proximity probe systems Magnetic pickup transducers Performance Specifications Speed measurement range: 0 to 99,999 RPM Magnetic pickup operational threshold: >200 RPM Measurement accuracy: ±0.05% Resolution: 0.1 RPM Sampling rate: 1 kHz per channel Phase deviation: <1° typical (non-isolated mode) <3° typical (isolated mode) Electrical Characteristics Supply voltage: -24 VDC via rack backplane Current draw: up to 40 mA per channel Typical power consumption: ~3.2 W Processing & Diagnostics 32-bit RISC processing architecture Onboard non-volatile memory for firmware and event storage Field-upgradable firmware support Continuous diagnostic self-monitoring capability Mechanical Design Half-height module format for 3500 rack systems Front slot installation within rack chassis Rear I/O interface for signal termination Physical dimensions: 170 × 105 × 32 mm Environmental Ratings Operating temperature: Non-isolated: -30°C to +65°C Isolated: 0°C to +65°C Storage temperature: -40°C to +85°C Relative humidity: up to 95% non-condensing Mechanical shock tolerance: 15 g (11 ms pulse) Vibration tolerance: 2 g across 5–500 Hz range System Integration Provides master timing reference for 3500 monitoring rack Compatible with all vibration modules including 3500/40M, 3500/42M, and 3500/45M Required for phase-based vibration analysis and order tracking applications Supports redundant and TMR system architectures Enables synchronized data acquisition during transient events FAQ Q1: Is this module compatible with newer Keyphasor designs?Yes. It is backward compatible and serves as a predecessor to newer revisions such as 149369-01. Q2: Can it operate in redundant configurations?Yes. It supports paired and TMR architectures for high-availability systems. Q3: Does it contribute to protection logic?No. It provides timing reference signals only and is not part of the protection path.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/25 Keyphasor Module Shaft Speed Unit
Product Description The Bently Nevada 3500/25 Enhanced Keyphasor® module is a dedicated timing and speed reference component within the 3500 machinery protection architecture. It is engineered to derive precise rotational position information from shaft-mounted sensors and distribute synchronized phase signals across the monitoring rack. This module converts analog inputs from proximity probes or magnetic pickups into stable digital timing pulses. These Keyphasor signals are used by vibration and diagnostic modules to align waveform data with shaft position, enabling accurate phase-based analysis and order tracking. It is widely deployed in rotating machinery systems where phase-referenced diagnostics are required for performance evaluation and fault detection. Signal Processing Function Converts raw analog shaft signals into digital Keyphasor pulse outputs Provides accurate rotational timing reference for the entire rack Supports single or dual-channel input configurations Ensures synchronized phase alignment across all vibration monitors Enables consistent speed and angular position measurement Measurement Capabilities Rotational speed calculation Shaft phase angle determination Synchronous vibration referencing Order tracking analysis for variable speed machines Multi-Keyphasor operation for complex mechanical systems Support for redundant timing configurations in critical applications Input Compatibility Proximity probe sensors (eddy current type) Magnetic pickup transducers Analog signal conditioning with digital pulse conversion Supports configurable channel architecture (1–2 channels depending on system setup) System Integration Provides timing reference to all 3500-series vibration monitors Fully compatible with modules such as 3500/40M, 3500/42M, and 3500/45M Required for phase-based vibration diagnostics and waveform alignment Supports startup, coast-down, and steady-state analysis workflows Enables order tracking and rotor dynamic evaluation Mechanical Configuration Full-height 3500 system module Front installation into rack backplane Rear I/O termination for sensor connections Modular design supports field replacement and maintenance Designed for integration within standard 3500 rack architecture Environmental Performance Suitable for continuous operation in harsh industrial environments Commonly deployed in: Gas and steam turbines Compressors and pumps Generators and drive trains Refinery and petrochemical rotating equipment Engineered for high vibration and temperature stability applications Functional Highlights Generates precise Keyphasor pulse trains for shaft reference Enhances vibration analysis accuracy through phase alignment Supports advanced diagnostics including Bode and polar plots Enables order-based vibration analysis in variable speed systems Supports redundant timing inputs for increased system reliability Acts as a critical synchronization source for machinery diagnostics FAQ Q1: What is the main function of the Keyphasor module?It provides a precise rotational timing reference used for phase-based vibration analysis and speed measurement. Q2: Can it work with magnetic pickup sensors?Yes. It supports both proximity probes and magnetic pickup inputs. Q3: Is this module part of the protection logic?No. It provides diagnostic timing signals and does not participate in protection trip functions.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/22M 146031-02 Transient Data Interface Module
Product Description The Bently Nevada 3500/22M 146031-02 Transient Data Interface is a rack-level communication processor designed for the 3500 machinery protection architecture. This version integrates fiber-optic Ethernet capability, providing enhanced signal integrity and extended transmission distance for critical monitoring networks. It functions as the primary data coordination node for the rack, consolidating configuration control, real-time communication, and vibration data acquisition into a unified interface connected to System 1 software. Unlike protection modules, this unit operates outside the safety trip circuit, ensuring that machinery protection remains fully active even if communication hardware is offline. System Function Overview Central processing interface for Bently Nevada 3500 rack communication Aggregates steady-state, dynamic, and transient vibration datasets Synchronizes data streams across all compatible monitoring modules Stores and manages rack configuration parameters locally Installed in Slot 1 of the rack backplane system Communication Architecture This variant introduces dual Ethernet paths: Primary interface: 100Base-FX fiber-optic Ethernet Secondary interface: 10/100Base-TX copper Ethernet USB Type-B port for local configuration and diagnostics Auto-negotiation support for copper Ethernet channels Supported communication functions: High-resolution transient waveform transmission Continuous vibration data streaming System 1 condition monitoring integration Rack configuration upload and download operations Modbus TCP communication support The fiber-optic interface improves resistance to electromagnetic interference and enables stable communication over long distances, making it suitable for electrically noisy environments. Electrical Characteristics Power consumption: 10.5 W (supplied via rack backplane) Operating mode: Normally energized architecture OK relay output (via I/O module): Rated 5 A @ 24 VDC / 120 VAC Maximum load: 120 W / 600 VA Gold-plated contacts for low-current reliability Minimum switching capability: 1 mA @ 1 VDC Integrated arc suppression design Front Panel Controls & Indicators OK LED: Module operational status TX/RX LED: Network communication activity CONFIG OK LED: Configuration validation status TM LED: Trip Multiply indication Rack Reset: Alarm clearing function Address selector: Rack ID configuration (1–127 range) Key switch: RUN / PROGRAM operating modes Mechanical Configuration Form factor: Full-height 3500 system module Front installation: Slot 1 (control position) Rear assembly: Dedicated I/O module interface Approximate dimensions: TDI module: 241 × 24 × 242 mm Approximate weights: TDI module: 0.91 kg Environmental Performance Operating temperature: -30°C to +65°C Storage temperature: -40°C to +85°C Humidity tolerance: 0–95% non-condensing Designed for continuous operation in harsh industrial environments Suitable for offshore, refinery, petrochemical, and power generation installations Functional Characteristics Serves as the primary rack communication backbone Supports acquisition of static, dynamic, and transient vibration signals Fiber-optic communication improves immunity to electrical noise Fully compatible with System 1 diagnostic platform Works with all M-series monitor modules (e.g., 3500/40M, 3500/42M, 3500/45M) Hot-swappable design for maintenance without system shutdown FAQ Q1: What is the advantage of fiber-optic Ethernet in this module?It provides improved noise immunity and supports longer-distance communication compared to copper Ethernet. Q2: Does this module affect protection functions?No. It is strictly a communication interface and does not participate in the trip protection path. Q3: Can copper Ethernet still be used?Yes. The module includes a secondary 10/100Base-TX interface for compatibility.
$200.00 $100.00
-
Bently Nevada Bently Nevada 3500/22M 146031-01 Ethernet I/O Communication Module
Product Description The Bently Nevada 3500/22M 146031-01 Ethernet I/O Module is the rear-mounted communication interface used in conjunction with the 3500/22M Transient Data Interface (TDI). Installed behind Slot 1 of the rack, it forms the physical network bridge that enables external communication between the 3500 system and plant-level monitoring platforms. This module is responsible for all Ethernet-based data exchange functions, including System 1 connectivity, waveform transfer, and rack-level configuration management. It also provides the hardware interface for system health signaling through the OK relay output. The unit operates outside the protection loop, ensuring that machinery protection remains active even if the communication interface is removed or fails. Communication Architecture Rear I/O Ethernet interface module for 3500/22M TDI systems Provides copper RJ-45 network connection Supports 10/100 Mbps auto-negotiated communication Auto MDI/MDIX eliminates crossover cable requirements Fully compliant with IEEE 802.3 / 802.3u standards Supported data services: System 1 condition monitoring communication High-speed vibration waveform transmission Transient event data transfer Rack configuration upload and download Modbus TCP communication over Ethernet Electrical Characteristics Powered through 3500 rack backplane (no external supply required) Integrated with TDI module power consumption profile (approx. 10.5 W system load) OK relay output: 5 A @ 24 VDC or 120 VAC Maximum switching load: 120 W / 600 VA Gold-plated low-current contacts (down to 1 mA @ 1 VDC) Built-in arc suppression design Normally energized operating state Functional Behavior Establishes Ethernet communication path for the TDI processor Enables real-time vibration and transient data streaming Provides rack health status output to DCS/PLC systems via relay Supports full integration with M-series monitor modules Maintains communication continuity during hot-swap operations Mechanical Configuration Installation location: Rear of rack behind Slot 1 (TDI position) Form factor: Full-height rear I/O module Dimensions: 241 × 24 × 100 mm Weight: 0.20 kg Designed for direct mating with 3500 rack backplane connectors Environmental Performance Operating temperature range: -30°C to +65°C Storage temperature range: -40°C to +85°C Relative humidity: 0–95% non-condensing Designed for continuous duty in harsh industrial environments Suitable for refinery, offshore, turbine, and compressor monitoring systems System Integration Role Provides Ethernet hardware layer for 3500/22M TDI systems Enables System 1 diagnostics and visualization connectivity Supports Modbus TCP for third-party control system integration Compatible with all M-series modules including 3500/40M, 3500/42M, and 3500/45M Ensures uninterrupted communication during module maintenance or replacement FAQ Q1: Is this module part of the protection system logic?No. It operates strictly as a communication interface and does not affect protection functions. Q2: Can the system run without this I/O module?Yes, but external Ethernet communication and System 1 connectivity will be unavailable. Q3: Is the module hot-swappable?Yes. It is designed for replacement without powering down the rack.
$200.00 $100.00
You have seen 72 out of 209 products