Bently Nevada 3500/40M-01-00 Proximitor Monitor



Introduction:
3500/40M-01-00 is a 4-channel Proximitor monitor for 3500 series racks. It measures radial vibration, thrust, eccentricity, and differential expansion. This module provides ±0.33% typical accuracy. It accepts proximity transducer signals only. Ideal for turbines, compressors, and rotating machinery monitoring.
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Product Attributes:
Manufacturer: Bently Nevada
Series: 3500 Monitoring system
Part Number: 3500/40M-01-00
Type: Proximitor Monitor
Condition: In Stock
Origin: U.S.A
Weight: 0.91
Shipping Port: Xiamen
Warranty: One year
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Description
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Technical Specifications – Tree View
- Inputs & Signal
- Accepts 1 to 4 proximity transducer signals.
- Input impedance: 10 kΩ (standard I/O).
- Power consumption: 7.7 watts typical.
- Sensitivity Options (per channel)
- Radial Vibration: 3.94 or 7.87 mV/µm.
- Thrust: 3.94 or 7.87 mV/µm.
- Eccentricity: 3.94 or 7.87 mV/µm.
- Differential Expansion: 0.394 or 0.787 mV/µm.
- REBAM: 40 or 80 mV/µm.
- Frequency Response
- Direct filter: user-programmable, 4-4000 Hz or 1-600 Hz (-3 dB).
- Gap filter: -3 dB at 0.09 Hz (radial).
- Thrust direct filter: -3 dB at 1.2 Hz.
- Eccentricity direct filter: -3 dB at 15.6 Hz.
- Not 1X filter: 60 cpm to 15.8x running speed.
- Smax: 0.125 to 15.8x running speed.
- 1X and 2X vector filters with constant Q design.
- Accuracy & Linearity
- Direct and Gap: ±0.33% of full scale typical (±1% max).
- 1X and 2X: ±0.33% typical (±1% max).
- Smax: within ±5% maximum.
- Not 1X: ±3% below 30,000 cpm, ±8.5% above 30,000 cpm.
- Thrust & Differential Expansion: ±0.33% typical.
- Eccentricity: ±0.33% typical.
- Outputs & Indicators
- OK LED: module operates correctly.
- TX/RX LED: module communicates with other rack modules.
- Bypass LED: module is in bypass mode.
- Buffered transducer outputs: coaxial connectors per channel.
- Output impedance: 550 Ω, short-circuit protected.
- Transducer power supply: -24 Vdc.
- Physical Dimensions & Weight
- Main board: 241.3 x 24.4 x 241.8 mm (HxWxD), 0.91 kg.
- I/O module (non-barrier): 241.3 x 24.4 x 99.1 mm, 0.20 kg.
- I/O module (barrier): 241.3 x 24.4 x 163.1 mm, 0.46 kg.
- Requires 1 full-height front slot for monitor.
- Requires 1 full-height rear slot for I/O module.
- Environmental & Approvals
- Agency approval option: 00 = none.
- Operates in standard industrial environments.
- No hazardous area certification on this version.
Installation Guide
- Install the monitor module in any full-height front slot.
- Install the matching I/O module in the rear slot behind it.
- Use 3500/40M-01-00 with 3500 series racks only.
- Connect proximity probes to the I/O module terminals.
- Set sensitivity and filter options via 3500 configuration software.
- Verify firmware compatibility before installation.
Package Contents (No certificates, no warranty, no shipping info)
- 1 x 3500/40M-01-00 monitor module (main board)
- 1 x Proximitor I/O module type 01 (internal terminations)
- No transducers or coaxial cables included
Common FAQs – Practical Answers
- Can the 3500/40M-01-00 measure velocity or acceleration?No. This monitor accepts proximity transducer signals only.
- What is the difference between direct and gap filter?Direct filter measures vibration. Gap filter measures probe gap voltage.
- Does this module work with the 3500/20 rack?Yes, the 3500/40M series works with standard 3500 racks.
- How do I select 100 mV/mil or 200 mV/mil sensitivity?Choose 200 mV/mil for small vibrations. Choose 100 mV/mil for larger amplitudes.
- What software do I need to configure the 3500/40M-01-00?You need 3500 configuration software version 4.20 or later.

