Description
Bently Nevada 140471‑02 I/O Internal Termination Module
Product Overview
140471‑02 is the internal‑termination I/O accessory assembly exclusively matched for the 3500/64M (176449‑05) Dynamic Pressure Monitor within Bently Nevada 3500 machinery‑protection systemBaker Hugh…. It provides on‑board field‑wiring terminal points for four‑channel dynamic‑pressure transducers, directly accepts sensor field cables without separate external termination blocks. Together with 176449‑05 monitor board, it forms a complete 3500/64M dynamic‑pressure acquisition unit, delivering high‑fidelity pressure‑pulsation signals to the main monitor board via rack backplane connection。
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 140471‑02 |
| Matching Main Board | 3500/64M (176449‑05) Dynamic Pressure MonitorBaker Hugh… |
| Termination Style | Internal Termination (field wiring connects directly to module rear terminals) |
| Input Channels | 4 channels for dynamic pressure transducer signal interface |
| Signal Interface | Screw‑type field wiring terminals for pressure sensor cables |
| Power Supply | Power fed from 3500 rack backplane bus |
| Max Power Consumption | 1.5 W |
| Operating Temperature | ‑30 ℃ ~ +65 ℃ (rack environment); Storage:‑40 ℃ ~ +85 ℃ |
| Physical Dimension | 241.3 mm × 24.4 mm × 99.1 mm, single‑slot 3500 rack form factor |
| Weight | Approx. 0.2 kg‑0.4 kg |
| Compliance | API 670 compliant for machinery‑protection application |
| Installation | Plug‑in behind 176449‑05 monitor, slides into standard 3500 rack slot |
Key Features
- Internal termination design: Field sensor cables terminate directly onto this assembly; eliminates extra external termination blocks and intermediate connecting cables, simplifies cabinet wiring layout and reduces signal interference risk。
- Four‑channel dedicated signal interface: Fully corresponds to four input channels of 3500/64M monitor, preserves high‑frequency signal integrity for dynamic‑pressure pulsation measurement up to 10 kHz bandwidth.
- Backplane seamless interconnection: Mates directly with 176449‑05 monitor module inside rack; analog sensor signals are transmitted to main monitor board through internal back‑plane connector.
- Transducer loop supervision path: Supports sensor cable fault‑detection (open‑circuit / short‑circuit) implemented by 3500/64M main monitor module.
- Rugged industrial mechanical structure: Designed for long‑term continuous operation in power, oil‑gas and petrochemical cabinet environments; hot‑swap supported within 3500 rack following official maintenance procedure.
- Software transparent: No separate configuration required; all channel parameter settings are completed in 3500 Rack Configuration Software for paired 3500/64M monitor.
Typical Applications & Application Scenarios
Main Applications
- Field wiring interface for dynamic‑pressure sensors working with 3500/64M monitor.
- Transmit high‑frequency pressure‑pulsation signals: gas‑turbine combustion oscillation monitoring, centrifugal / axial compressor anti‑surge pre‑warning, reciprocating‑compressor cylinder pressure pulsation acquisition。
- Complete signal‑path hardware set for machinery protection and spectrum analysis of dynamic pressure.
Industry Scenarios
- Power generation: Combined‑cycle power plant gas‑turbine units.
- Oil & gas: Natural‑gas pipeline compressors, refinery turbo‑machinery.
- Petrochemical plant: Reciprocating compressors and large process turbo‑equipment.
- Critical machinery protection system sites following API 670 standard requirements。
Supporting / Matching Components
- Paired core monitor module: 176449‑05 (3500/64M) Dynamic Pressure Monitor (must be used together; cannot operate independently)Baker Hugh…。
- Host rack: 3500/05 instrument rack.
- Rack power supply: 3500/15 series power supply module.
- Field devices: High‑frequency dynamic‑pressure transducers and dedicated shielded high‑frequency sensor cables.
- Auxiliary system modules: 3500/32M /3500/33 relay output modules; 3500/92 /3500/77M communication gateway modules for DCS/SCADA data upload.
- Configuration tool: Bently Nevada 3500 Rack Configuration Software.
350064M 140471-02
Related & Reference Part Numbers
- 140482‑02: 3500/64M I/O external termination assembly (alternative option versus 140471‑02; uses external termination wiring mode)Baker Hugh…
- 128015‑09: Dynamic Pressure External Termination block (terminal‑strip version)
- 125808‑09: Dynamic Pressure External Termination block (Euro‑style connector)
- 176449‑05: 3500/64M main monitor board (mandatory mating part)Baker Hugh…
Installation & Maintenance Notes
- 140471‑02 is a matched accessory assembly, it cannot run standalone; it must be installed behind the 176449‑05 monitor in the same rack slot。
- Strictly use shielded high‑frequency cables for dynamic‑pressure sensors; separate signal cables from high‑power power cables to avoid high‑frequency signal distortion.
- After hardware installation, verify channel status and sensor fault‑detection function via 3500 configuration software.
- Module replacement supports hot‑swap; follow Bently official service procedure for power‑on replacement.
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