Bently Nevada 3500/40M Proximitor Monitor

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Manufacturer: Bently Nevada
Product No.: 3500/40M
Country of origin:United States
Product Type: Proximitor Monitor
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1500g
Dimensions: 300 mm x 280 mm x 65 mm
Shipping port: Xiamen
Warranty: 12 months

The Bently Nevada 3500/40M Proximitor Monitor is a four-channel module designed for continuous machinery protection and critical asset information monitoring. By accepting inputs from proximity transducers, the Bently Nevada 3500/40M conditions raw sensor signals to track essential dynamic parameters and compares them against user-programmable alarm setpoints. The primary engineering purpose of this unit is to drive automated machinery protection systems while delivering high-fidelity diagnostic data to operations and maintenance teams.

Key Features

Four-Channel Design: Configurable in pairs, allowing dual-function allocation across channels 1 and 2, and channels 3 and 4.

Flexible Signal Conditioning: Supports diverse machine measurements via software configuration, including radial vibration, thrust position, eccentricity, differential expansion, and REBAM.

Advanced Setpoint Matrix: Allows Alert setpoints for all active static values and Danger setpoints for any two active static values per channel.

On-Board Status Tracking: Front panel LEDs indicate module health (OK), rack communication status (TX/RX), and active channel bypass conditions.

Short-Circuit Protection: Coaxial buffered transducer outputs on the front panel are fully protected against continuous wiring faults.

Industrial Applications

Steam and gas turbine shaft vibration and axial thrust monitoring.

Centrifugal and axial compressor protection systems.

Large industrial pump, fan, and electric motor diagnostics.

Rolling element bearing analysis using high-frequency REBAM configurations.

Ordering Information

Option Code	Description / Hardware Configuration
3500/40M-A01-BXX	Proximitor I/O Module with Internal Termination
3500/40M-A02-BXX	Proximitor I/O Module with External Terminations
3500/40M-A03-BXX	Proximitor I/O Module with Internal Barriers and Internal Terminations
Option B00	No Hazardous Area Approval
Option B01	CNRTLus Approval (Class I, Division 2)
Option B02	ATEX/IECEx/CSA Approval (Class I, Zone 2) - Only available with Option A03

Technical Specifications

Parameter	Engineering Specification
Signal Inputs	Accepts 1 to 4 proximity transducer signals
Power Consumption	7.7 Watts, typical
Input Impedance	10 kOhm (Standard I/O Proximitor and acceleration inputs)
Buffered Output Impedance	550 Ohm
Transducer Power Supply	-24 Vdc
Radial / Thrust / Eccentricity Sensitivity	3.94 mV/micrometer (100 mV/mil) or 7.87 mV/micrometer (200 mV/mil)
Differential Expansion Sensitivity	0.394 mV/micrometer (10 mV/mil) or 0.787 mV/micrometer (20 mg/mil)
REBAM Sensitivity	40 mV/micrometer (1000 mV/mil) or 80 mV/micrometer (2000 mV/mil)
Direct/Gap Filter Accuracy	Within +/-0.33 percent of full-scale typical, +/-1 percent maximum
Phase Accuracy	3 degrees error, maximum
Alarm Setpoint Accuracy	Within 0.13 percent of the desired value
Operating Temperature (Standard I/O)	-30 degC to +65 degC (-22 degF to +150 degF)
Operating Temperature (Barrier I/O)	0 degC to +65 degC (32 degF to +150 degF)
Storage Temperature	-40 degC to +85 degC (-40 degF to +185 degF)
Relative Humidity	95 percent, non-condensing
Monitor Module Dimensions	241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
Rack Space Requirements	1 full-height front slot (Monitor), 1 full-height rear slot (I/O Module)
Manufacturer	Bently Nevada (Baker Hughes)
Country of Origin	United States
Shipping Weight (Calculated)	1.5 kg (Includes main module, rear I/O card, and protective packaging)
Package Dimensions (Calculated)	300 mm x 280 mm x 65 mm

Installation Guidelines

CRITICAL WARNING: Disconnect all power sources from the 3500 system rack before inserting or removing the monitor modules or rear I/O cards. High-voltage transients can destroy sensitive CMOS components. Ensure the field wiring is fully de-energized and appropriate lock-out/tag-out (LOTO) protocols are executed before disturbing terminal block connections.

1 Verify rack slot compatibility. The main 3500/40M monitor slide-in module must only be inserted into a full-height front slot, and its matching rear I/O module must align directly behind it in the corresponding full-height rear slot.

2 Seat the module firmly into the chassis guide rails. Gently push the front panel until the rear connectors hook securely into the backplane. Tighten the two integrated thumb screws on the front panel to ensure constant chassis grounding.

3 Wire the proximity transducer extensions to the rear I/O terminal strip or Euro-style connector header block. Avoid running low-voltage sensor lines parallel to high-current three-phase power cables to prevent electromagnetic noise injection.

4 Connect your engineering workstation to the rack via the 3500 Rack Configuration Software. Upload the baseline file, verify the specific transducer sensitivity settings (e.g., 200 mV/mil), and map the required channels to their respective protection relays.

Key Features:

#3500/40M #Proximitor Monitor

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Can the 3500/40M monitor handle both radial vibration and thrust position simultaneously?

Yes, but with functional restrictions based on channel pairing. The monitor channels are programmed in pairs. Channels 1 and 2 can perform one function (such as radial vibration) while channels 3 and 4 execute another function (such as thrust position).

What is the difference between standard and internal barrier I/O options for this module?

The standard I/O option operates within a temperature range of -30 degC to +65 degC and handles standard signal paths. The internal barrier I/O option features built-in galvanic isolation components for hazardous areas, altering the operating temperature threshold to 0 degC to +65 degC.

What software package is required to program the alarm setpoints and channel configurations?

System configuration requires the official 3500 Rack Configuration Software. The configuration parameters allow users to fine-tune alert and danger levels, establish alarm time delays from 0.1 to 60 seconds, and set channel pair functions.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Silver
Country of origin	United States

Bently Nevada 3500/40M Proximitor Monitor