Bently Nevada

1701/25 161141-01 Seismic Input Monitor Module Bently Nevada

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  • Manufacturer: Bently Nevada

  • Product No.: 1701/25 161141-01

  • Product Type: Seismic Input Monitor Module

  • Product Origin: USA

  • Payment: T/T

  • Weight: 600g

  • Shipping port: Xiamen

  • Warranty: 12 months

Product Overview

Bently Nevada 1701/25 (PN: 161141-01) is a dual-channel seismic vibration monitor for the FieldMonitor system. Unlike Proximitor modules that measure shaft position, it interfaces with seismic transducers (accelerometers or velocity sensors) to monitor machine casing or bearing housing vibration. Ideal for machines with rolling-element bearings, where casing vibration better indicates health than shaft displacement.


Technical Specifications

Feature Details
Model 1701/25
Part Number 161141-01
Operating Temp -30°C to +70°C

Key Features

  • Versatile Monitoring: Each channel configurable (e.g., Peak Velocity, RMS Acceleration).

  • Integrated Signal Conversion: Acceleration signals can be digitally integrated to velocity units.

  • Smart Setpoints: Independent Alert & Danger setpoints per channel; triggers relays or DCS alarms.

  • Diagnostic Waveform Access: Front-panel BNC connectors for waveform/FFT without downtime.


Typical Applications

  • Small Pumps & Fans – bearing housing vibration via velocity sensors

  • Reciprocating Compressors – high-frequency accelerometer for impact or valve issues

  • Industrial Gas Turbines – casing vibration to detect resonance or imbalance

  • Rolling Element Bearing Machines – early-stage bearing fatigue detection


Installation Considerations

  • Sensor Orientation: Follow vibration specialist guidelines (Horizontal, Vertical, Axial).

  • Terminal Base: Requires 1701/01 Terminal Base; allows easy replacement.

  • Cable Shielding: Shielded cables grounded only at FieldMonitor end to avoid ground loops.


FAQ

Q1: Can I use a 2-wire accelerometer?
A1: Yes, supports 2-wire constant-current (IEPE/ICP) accelerometers via internal current source.

Q2: Difference between 1701/15 and 1701/25?
A2: 1701/15 measures shaft displacement with Proximitor sensors; 1701/25 measures casing vibration with seismic sensors.

Q3: Can filter settings be configured?
A3: Yes, high-pass and low-pass filters can be configured via FieldConfig to target specific frequency bands.

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