Machinery protection systems safeguard turbines, compressors, and pumps. They detect faults early and prevent costly damage. We stock Bently Nevada and other trusted systems, available with fast delivery worldwide.
Machinery Protection Systems
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Bently Nevada Bently Nevada 3500/61-01-05 Temperature Monitor
Product Overview The Bently Nevada 3500/61-01-05 is a six-channel temperature monitoring module developed for critical machinery protection applications in hazardous industrial environments. This configuration combines advanced temperature monitoring functions with integrated recorder outputs and international hazardous-area approvals, making it suitable for offshore installations, petrochemical plants, gas compression stations, and power generation facilities. The module continuously acquires RTD and thermocouple signals, evaluates alarm conditions, and transmits proportional analog outputs for external monitoring, trending, or legacy control integration. Configuration Details The 3500/61-01-05 configuration includes: 3500/61 Main Temperature Monitor RTD/TC Non-Isolated I/O Module with Internal Terminations Integrated recorder output functionality Multi-agency hazardous-area certification package The “01” option specifies internal field terminations mounted directly on the rear I/O module, while the “05” approval option supports international hazardous-area installation requirements. Key Functional Features Six independently programmable temperature channels Mixed RTD and thermocouple sensor compatibility Integrated 4–20 mA recorder outputs for each channel Continuous Alert and Danger setpoint comparison Fast update cycle for machinery protection applications Internal screw-terminal field wiring design Certified for Zone 2 and Division 2 installations API 670 compliant monitoring architecture Technical Specifications Parameter Specification Model 3500/61-01-05 Product Type Temperature Monitor with Recorder Outputs Series 3500 Machinery Protection System Monitoring Channels 6 independent channels I/O Style Internal Termination RTD/TC I/O Sensor Inputs RTD and Thermocouple Supported RTDs 100 Ω Platinum, 10 Ω Copper, 120 Ω Nickel RTD Wiring 3-wire and 4-wire Supported Thermocouples E, J, K, T, R, S Recorder Outputs 6 x 4–20 mA outputs Output Protection Short-circuit protected Maximum Output Load 600 Ω Input Impedance >10 MΩ for TC inputs Signal Resolution 0.1°C or 1°F Typical Accuracy ±1°C Channel Isolation 500 Vdc channel-to-ground Update Time Less than 1 second Alarm Functions Independent Alert and Danger setpoints Power Consumption 9 W maximum Operating Temperature -30°C to +65°C Storage Temperature -40°C to +85°C Relative Humidity 95% non-condensing Rack Space Requirement One front slot and one rear slot Hazardous Area Certifications The 3500/61-01-05 configuration is intended for installations requiring multiple international hazardous-area approvals. Supported certification categories include: Class I Division 2 Groups A, B, C, D Class I Zone 2 hazardous locations ATEX Zone 2 compliance IECEx certified installations The module is suitable for non-incendive and increased-safety industrial applications where explosive gas atmospheres may occasionally be present. Typical Applications Common installation environments include: Offshore oil and gas platforms LNG and gas compression facilities Steam and gas turbine systems Generator stator temperature monitoring Petrochemical processing units Hazardous-area compressor protection systems FAQ Q1: What is the advantage of recorder outputs on this module?The integrated 4–20 mA outputs allow connection to chart recorders, DCS systems, PLC analog inputs, and legacy plant monitoring equipment. Q2: Can RTD and thermocouple inputs operate simultaneously?Yes. Each of the six channels can be independently configured for different supported sensor types. Q3: Is the module suitable for hazardous-area installations?Yes. The “05” option includes multiple international approvals for Zone 2 and Division 2 environments.
$200.00 $100.00
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Bently Nevada Bently Nevada 3500/61-01-00 Temperature Monitor Module
Product Overview The Bently Nevada 3500/61-01-00 is a six-channel temperature monitoring module engineered for continuous thermal supervision within the 3500 Machinery Protection platform. This configuration combines the main temperature monitor with a non-isolated RTD/thermocouple I/O module featuring internal terminations for direct field wiring. The module continuously evaluates temperature conditions from critical machinery and communicates alarm or shutdown conditions through the 3500 rack system when preset thresholds are exceeded. The unit is commonly installed in turbine control systems, compressors, generators, and rotating equipment protection applications where stable and fast temperature monitoring is required. Configuration Details The 3500/61-01-00 configuration includes: Main Temperature Monitor Module: 163179-02 RTD/TC Non-Isolated Internal Termination I/O Module: 133819-02 Internal field termination design for direct sensor connection Standard non-certified version without hazardous-area agency approvals Functional Characteristics Monitors up to six independent temperature channels Supports both RTD and thermocouple sensing technologies Continuous comparison against configured Alert and Danger limits Compatible with recorder output functionality for diagnostics and trending Configurable alarm delay timers for process stability Designed for integration into the 3500 Series Machinery Protection System Technical Specifications Parameter Specification Model 3500/61-01-00 Product Series 3500 Machinery Protection System Product Type Temperature Monitor with Recorder Outputs Channel Capacity 6 channels I/O Configuration Internal Termination RTD/TC I/O Main Module Part Number 163179-02 I/O Module Part Number 133819-02 Sensor Compatibility RTD and Thermocouple RTD Types Platinum 100 Ω, Copper 10 Ω, Nickel 120 Ω RTD Wiring 3-wire and 4-wire Thermocouple Types E, J, K, T, R, S Input Impedance >10 MΩ for TC inputs Signal Resolution 0.1°C or 1°F Typical Accuracy ±1°C typical Isolation 500 Vdc channel-to-ground Alarm Functions Independent Alert and Danger setpoints Alarm Delay 0.1 to 60 seconds configurable Recorder Outputs Supported Power Consumption Approx. 7 W Operating Temperature -30°C to +65°C Storage Temperature -40°C to +85°C Relative Humidity 95% non-condensing Rack Installation One front slot + matching rear slot Weight 3.31 lbs Country of Manufacture United States Internal Termination Design The internal termination configuration allows field wiring to connect directly to screw terminals located on the rear I/O module. This simplifies installation and reduces additional external termination hardware requirements. This arrangement is commonly selected for compact rack installations and standard industrial control cabinets. Application Areas Typical deployment environments include: Steam and gas turbine monitoring Compressor protection systems Generator winding temperature supervision Bearing metal temperature monitoring Oil and gas process equipment Power generation facilities FAQ Q1: Does the 3500/61-01-00 support both RTD and thermocouple inputs simultaneously?Yes. Each channel can be individually configured for supported RTD or thermocouple sensor types. Q2: What is the difference between internal and external termination versions?The internal termination version allows direct field wiring to the rear I/O module, while external termination versions use separate termination assemblies. Q3: Is this module approved for hazardous locations?The “00” approval option indicates a standard version without additional hazardous-area agency certifications.
$200.00 $100.00
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Bently Nevada Bently Nevada 3500/61 Temperature Monitor Module
Product Overview The Bently Nevada 3500/61 Temperature Monitor Module is a dedicated multi-channel monitoring solution developed for continuous thermal supervision within the 3500 Machinery Protection System. Designed for rotating equipment protection, the module processes signals from RTD and thermocouple sensors to identify abnormal temperature conditions before equipment damage occurs. It is commonly deployed on turbines, motors, compressors, generators, and auxiliary process systems where accurate thermal monitoring is critical for operational reliability. The module combines high-speed signal processing, programmable alarm logic, and flexible sensor configuration in a compact rack-mounted design. Key Features Six independently configurable temperature input channels Compatible with both RTD and thermocouple sensor technologies Continuous alarm and trip comparison processing Supports mixed sensor configuration per channel Fast update cycle for real-time machinery protection Galvanic isolation between field inputs and rack ground Integrated buffered outputs for diagnostics and testing Front module with dedicated rear I/O module architecture Module Architecture The 3500/61 operates using a dual-slot arrangement within the 3500 rack system: Main monitoring module installed in the front rack position Matching I/O interface module installed in the rear slot This structure simplifies field wiring while maintaining reliable signal isolation and system integrity. Technical Specifications Parameter Specification Model 3500/61 Product Type Temperature Monitor Module Series 3500 Machinery Protection System Monitoring Channels 6 channels RTD Compatibility 3-wire and 4-wire RTD Supported RTDs Platinum 100 Ω, Copper 10 Ω, Nickel 120 Ω Thermocouple Inputs Type E, J, K, T, R, and S Measurement Resolution 0.1°C / 1°F Typical Accuracy ±1°C typical Update Speed <1 second for all channels Isolation Rating 500 Vdc channel-to-ground isolation Alarm Functions Independent Alert and Danger setpoints Alarm Delay Range 0.1 to 60 seconds configurable Buffered Outputs Front-panel coaxial outputs Typical Power Consumption 7 W Operating Temperature -30°C to +65°C Storage Temperature -40°C to +85°C Relative Humidity 95% non-condensing Voltage Range 0 to +12 Vdc Dimensions 241.3 × 24.4 × 241.9 mm Weight 0.82 kg Application Areas The module is widely used in industrial protection systems requiring stable and continuous temperature monitoring: Steam and gas turbines Electric motors and generators Compressors and pumps Petrochemical processing equipment Power generation systems Critical bearing and winding monitoring Sensor Compatibility The 3500/61 platform supports multiple industrial temperature sensing technologies, allowing mixed sensor deployment across channels. This flexibility enables one module to monitor bearings, windings, stator sections, and process temperatures simultaneously. FAQ Q1: Can RTD and thermocouple sensors be used together on the same module?Yes. Each channel can be independently configured for different supported sensor types. Q2: What is the purpose of the buffered output connectors?The front-panel buffered outputs allow technicians to connect external diagnostic equipment without interrupting system operation. Q3: Is the module suitable for continuous industrial operation?Yes. The 3500/61 is engineered for permanent installation in demanding industrial monitoring environments.
$200.00 $100.00
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Bently Nevada Bently Nevada 3500/60 133843-01 TC Isolated I/O Module
Product Overview The Bently Nevada 3500/60 with 133843-01 TC Isolated I/O Module is designed for high-integrity thermocouple signal acquisition within the 3500 machinery protection architecture. It is engineered for environments where electrical interference, long cable runs, and ground potential differences can degrade temperature measurement accuracy. This module provides electrically isolated thermocouple channels to ensure stable and repeatable temperature data for critical rotating equipment such as turbines, compressors, and driven machinery. Functional Description The module interfaces directly with standard thermocouple sensors and performs signal conditioning, linearization, and conversion into engineering units for the 3500 rack system. Key functional roles include: Multi-channel thermocouple signal acquisition Channel-to-channel electrical isolation to reduce noise coupling Integration with 3500 rack monitoring and alarm logic Stable operation in high EMI industrial environments Technical Specifications Model: 3500/60 TC Isolated I/O Module Part Number: 133843-01 Input Type: Thermocouple (TC only) Channel Count: 6 independent isolated channels Isolation: Full galvanic isolation per channel System Compatibility: Bently Nevada 3500 monitoring rack Signal Processing: Linearized temperature output via rack processor Operating Environment: High electromagnetic interference industrial zones Weight: 0.46 kg Installation: Rack-mounted with external termination interface support System Notes & Integration The module is typically paired with the 3500 rack’s processing and display modules. It may be used with external termination assemblies to simplify field wiring and improve maintainability. Signal integrity is maintained through isolation barriers that minimize ground loops and electrical noise transfer between channels. Typical Applications Steam and gas turbine temperature monitoring Compressor casing and bearing temperature supervision Pump protection systems in oil & gas facilities Power generation auxiliary equipment monitoring Petrochemical and refinery rotating machinery systems FAQ Q1: Is this module compatible with all 3500 racks?It is designed specifically for the 3500/60 platform within the 3500 monitoring system architecture. Q2: What is the main advantage of isolated thermocouple channels?Isolation reduces electrical noise and ground loop interference, improving measurement stability in harsh environments. Q3: Can it be used in non-rotating equipment applications?Yes, as long as thermocouple temperature monitoring is required within the system configuration.
$200.00 $100.00
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Bently Nevada Bently Nevada 3500/60 133835-01 Temperature Monitoring Module
Product Description The 3500/60 Temperature Monitoring Module (133835-01) is a rack-based 16-channel acquisition unit designed for continuous thermal condition supervision in rotating and stationary machinery systems. It is part of the Bently Nevada 3500 platform and provides high-density temperature acquisition with integrated diagnostics, alarm handling, and system communication. The module is engineered for long-term deployment in machinery protection environments where thermal stability is critical to equipment reliability. Input Architecture This module supports mixed sensor input across 16 independent channels: RTD sensors: Pt100 (100 Ω platinum) Ni120 (nickel-based elements) 2-wire, 3-wire, and 4-wire configurations supported Measurement range: approximately –200 °C to +850 °C (sensor dependent) Thermocouples: Types supported: J, K, E, T, R, S, B, N Extended range capability up to ~1700 °C depending on thermocouple type Internal automatic cold-junction compensation Input characteristics: RTD input impedance > 1 MΩ Thermocouple input impedance > 10 MΩ Measurement and Diagnostic Functions Each channel operates independently and provides: Continuous temperature acquisition Dual alarm thresholds per channel (warning and critical levels) Open-circuit detection for broken sensor wiring Short-circuit and wiring fault identification Channel-level configuration flexibility Data trending and historical logging through rack communication System Integration and Outputs 16-channel data transmitted through 3500 rack backplane Interface compatibility with TDI modules and System Display units Relay-based alarm outputs managed through external 3500/32 or 3500/33 modules Front-panel indicators: System status (OK) Communication activity (TX/RX) Bypass condition indication No direct analog buffering is provided, as temperature data is handled digitally within the rack architecture. Accuracy and Performance RTD measurement accuracy: ±0.1% of reading Thermocouple accuracy: typically ±1 °C to ±2 °C depending on type Measurement resolution: 0.1 °C Channel update interval: approximately 100 ms per channel These characteristics support stable long-term monitoring in thermally dynamic machinery environments. Electrical and Environmental Data Typical power consumption: 7.0 W Operating temperature range: –30 °C to +65 °C Relative humidity tolerance: up to 95% non-condensing Compliance: CE certified CSA certified API 670 compliant system integration capability Application Areas Turbine casing and bearing temperature monitoring Compressor thermal supervision Motor and generator winding temperature tracking Gearbox and lubrication system thermal monitoring Pump system condition tracking FAQ Q1: Does this module support both RTD and thermocouples simultaneously?Yes, each of the 16 channels can be configured individually for RTD or thermocouple input. Q2: Is signal conditioning required externally?No, cold-junction compensation and signal conditioning are integrated into the module. Q3: How are alarms handled?Alarm thresholds are configured per channel and communicated through the 3500 rack system to relay modules.
$200.00 $100.00
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Bently Nevada Bently Nevada 3500/53 Overspeed Protection Module
Product Description The 3500/53 Overspeed Protection Module (134611-01) is engineered for high-reliability rotational safety control in critical machinery environments. It is deployed within the Bently Nevada 3500 platform to deliver independent overspeed detection, redundant speed evaluation, and direct trip actuation for turbine and compressor protection systems. The module is designed to operate as a dedicated safety layer, executing fast response logic when rotational speed exceeds defined thresholds. Protection and Logic Architecture This module implements dual-channel safety processing with independent evaluation paths: Two isolated speed measurement channels Primary overspeed shutdown function Secondary backup overspeed verification path Configurable voting logic: 1-out-of-2 (1oo2) trip logic 2-out-of-2 (2oo2) trip logic for stricter validation Fail-safe design for turbine trip circuit integration The architecture is intended to minimize false trips while maintaining deterministic shutdown behavior under fault conditions. Input Characteristics Two independent measurement channels Sensor compatibility: Eddy current proximity probes (preferred for full dynamic range) Magnetic pickups (suitable for high-speed applications, reduced low-speed fidelity) Input voltage range: +10 V to –24 V DC Input impedance: 20 kΩ Frequency response: up to 20 kHz depending on transducer selection Low-speed detection: Proximity probes support near-zero operation Magnetic pickups limited at low rotational speeds Trip and Output Functions Dual high-speed, normally energized trip relays Direct interface for turbine trip solenoid circuits Independent relay outputs for redundancy Front-panel status indicators: System OK Communication activity (TX/RX) Bypass condition Active trip status Additional outputs include: Buffered speed signal per channel Conditioned Keyphasor-style reference output to rack backplane Performance Characteristics Overspeed trip response time: typically < 40 ms (configuration dependent) Speed measurement accuracy: ±0.1% of full-scale range Measurement repeatability: ±0.05% These values support deterministic shutdown performance in high-energy rotating equipment. Electrical and Environmental Data Typical power consumption: 6.0 W Operating temperature range: –30 °C to +65 °C Relative humidity: up to 95% non-condensing Compliance and certification: API 670 compliant architecture CE and CSA certified SIL-2 capable when installed per system requirements Application Areas Steam turbine overspeed protection Gas turbine safety shutdown systems Industrial compressor protection Turboexpander monitoring systems High-speed rotating machinery safety loops FAQ Q1: Is this module suitable for safety shutdown applications?Yes, it is designed specifically for overspeed trip functions in turbine safety systems. Q2: Can it operate in redundant voting configurations?Yes, it supports both 1oo2 and 2oo2 voting logic schemes. Q3: Does it require proximity probes?Proximity probes are recommended for full-range performance, especially near zero speed detection.
$200.00 $100.00
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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