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Bently Nevada 990-05-XX-01-00 Vibration Transmitter Module

Configured for vibration signal conditioning in machinery monitoring loops, the Bently Nevada 990-05-XX-01-00 MOD:165335-01 (990-05-XX-01-00) vibration transmitter provides direct physical/electrical execution. The unit interfaces with a Bently Nevada 3300 NSv proximity probe system, converting eddy-current gap displacement input into a proportional 4-20 mA output representing peak-to-peak vibration amplitude.

SuffixBreakdown&ModelMatrix

• 05: Full-scale vibration range selection (0-5 mils pp / 0-125 μm pp)
• XX: System configuration placeholder for probe/cable compatibility set
• 01: DIN rail mounting option (35 mm rail clip)
• 00: No agency approval option applied
• MOD:165335-01: Manufacturer modification/assembly tracking code

HardwareSpecifications

Parameter	Specification
ModelBrand	Bently Nevada 990-05-XX-01-00 MOD:165335-01
Origin	USA
Weight	0.45 kg
Dimensions	10 x 7.4 x 6 cm
OperatingTemp	Not specified
PowerConsumption	Not specified
Input Type	3300 NSv proximity probe + extension cable
Output Signal	4-20 mA proportional vibration signal
Measurement Range	0-5 mils pp (0-125 μm pp)
Mounting	35 mm DIN rail clip

Eddy-Current Probe Scaling & Gap Voltage Validation

The transmitter performs eddy-current signal conditioning aligned with proximity probe linearization characteristics. Input gap voltage is scaled to a calibrated displacement reference, maintaining validation against nominal -10 VDC operating targets for probe driver linear region compliance. Signal integrity relies on controlled impedance matching between probe, extension cable, and transmitter input stage. Cross-talk suppression is implemented through internal filtering to preserve rotor dynamic measurement fidelity under multi-channel proximity monitoring configurations.

Frequently Asked Questions

Q1: Does the module accept direct vibration accelerometer input?
A1: No. The device is designed exclusively for eddy-current proximity probe systems (Bently Nevada 3300 NSv) and does not support IEPE or accelerometer inputs.

Q2: What is the output signal format to the control system?
A2: The transmitter provides a loop-powered 4-20 mA analog signal proportional to peak-to-peak shaft vibration displacement.

Q3: Is the system length selectable in the field?
A3: No. System length selection (5.0 m or 7.0 m) is defined by model configuration and must match probe and extension cable assembly at installation.

Field Installation Guidelines

• Install on a standard 35 mm DIN rail with secure mechanical retention of clip interface.
• Maintain separation between probe signal wiring and high-voltage conductors to reduce electromagnetic coupling.
• Ensure proper shielding termination at designated ground reference point; avoid multiple ground loops in signal return path.
• Verify correct matching of probe, extension cable, and transmitter configuration code prior to energization.
• Observe linear operating region of proximity probe driver to prevent saturation-induced measurement distortion.

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