Bently Nevada 140471-02 I/O Module Internal Termination

SKU 140471-02

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12-month warranty
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Manufacturer: Bently Nevada
Product No.: 140471-02
Country of origin:United States
Product Type: I/O Module Internal Termination
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 200g
Dimensions: 24.4 mm x 241.3 mm x 99.1 mm (W x H x D)
Shipping port: Xiamen
Warranty: 12 months

Description

The Bently Nevada 140471-02 is an I/O module designed for dynamic pressure monitoring applications in the 3500 Machinery Protection System. The module processes signal inputs from high-temperature pressure transducers to perform signal conditioning and pass data to the 3500/64M main monitor board. Featuring internal termination wiring connections, the 140471-02 routes transducer signals, provides transducer power supplies, and outputs proportional +4 to +20 mA recorder signals for external control systems.

Features

Direct internal termination connections for 3-wire and 2-wire pressure transducer inputs
Integrated transducer power supply routing, providing -24 Vdc for 3-wire transducers and 3.3 mA current source at 22 Vdc nominal for 2-wire transducers
Support for 4-channel signal routing to the 3500/64M Dynamic Pressure Monitor
Dedicated terminal connections for 4 to 20 mA proportional recorder outputs per channel
Configurable internal jumpers for selecting 2-wire or 3-wire transducer field wiring configurations

Applications

Gas turbine combustion dynamic pressure monitoring
Hydro turbine dynamic pressure measurement
Reciprocating compressor cylinder dynamic pressure monitoring
Industrial machinery protection and condition monitoring

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Part Number	140471-02
Module Type	I/O Module with Internal Termination
Compatible System	Bently Nevada 3500 Series (3500/64M Dynamic Pressure Monitor)
Transducer Supplies (3-wire)	-24 Vdc
Transducer Supplies (2-wire)	3.3 mA current source @ 22 Vdc (nominal)
Input Impedance (3-wire)	10 kΩ
Input Impedance (2-wire)	1.5 MΩ to 3.5 MΩ typical
Recorder Output Current	+4 to +20 mA
Recorder Output Voltage Compliance	0 to +12 Vdc range across load
Recorder Output Load Resistance	0 to 600 Ω
Dimensions (H x W x D)	241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
Weight	0.20 kg (0.44 lb)

Connections/Interfaces

Terminal / Pin	Function
PWR	Transducer Power (+ / -24 Vdc supply)
COM/A	Common / Signal Line A
SIG/B	Signal / Line B
SHLD	Cable Shield Connection
INHB	Inhibit Control Input
RET1	Return / Reference Connection 1
COM	Common Reference
REC1	Channel 1 Recorder Output (+4 to +20 mA)
REC2	Channel 2 Recorder Output (+4 to +20 mA)
REC3	Channel 3 Recorder Output (+4 to +20 mA)
REC4	Channel 4 Recorder Output (+4 to +20 mA)
SHIELD	Main Earth Shield Termination

Installation Guidelines

Verify internal jumper positions for each channel pair (CH1/CH2 and CH3/CH4) match the connected transducer type (2-wire or 3-wire) prior to wiring.
Ensure field wiring is landed securely on the appropriate internal terminal block header (e.g., 8-position, 6-position, or push-in spring type headers).
Connect cable shields directly to designated SHLD/SHIELD terminals to maintain electromagnetic shielding performance.
Mount the module into the rear slot of the 3500 rack directly behind the corresponding 3500/64M monitor main board.

Compliance and Certifications

Certification / Standard	Details
cNRTLus (without internal barriers)	Class I, Zone 2: AEx/Ex nA nC ic IIC T4 Gc; Class I, Zone 2: AEx/Ex ec nC ic IIC T4 Gc; Class I, Division 2, Groups A, B, C, and D; T4 @ Ta = -20degC to +65degC (-4degF to +149degF)
ATEX / IECEx (without internal barriers)	II 3 G; Ex nA nC ic IIC T4 Gc; Ex ec nC ic IIC T4 Gc; T4 @ Ta = -20degC to +65degC (-4degF to +149degF)
EMC Directive	2014/30/EU; EN 61000-6-2, EN 61000-6-4
LV Directive	2014/35/EU; EN 61010-1
RoHS Directive	2011/65/EU
China RoHS	EFUP 15 years per SJ/T 11364-2024
Maritime	DNV GL rules for classification; ABS Rules Part 1

FAQ

Which monitor module does the unit connect to in the rack?

The module installs in the rear slot of the 3500 chassis directly behind the 3500/64M Dynamic Pressure Monitor main board.

How are field wiring configurations selected for 2-wire or 3-wire sensors?

Internal physical jumpers on the module board are positioned specifically for 2-wire or 3-wire operation across channel pairs.

What power supply voltage is provided for 3-wire pressure transducers?

The module delivers a nominal -24 Vdc power output directly to connected 3-wire transducers through the internal terminal block.

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Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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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).

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TECHNICAL SPECIFICATIONS

Color pattern	Greyish White
Country of origin	United States
Power source	DC Power