Bently Nevada 3500/42M 138700-01 | Proximitor Monitor Module Quality Selection

Overview
The Bently Nevada 3500/42M (138700‑01) is a four‑channel seismic and proximity monitor module designed for machinery protection systems. It processes inputs from proximity probes or seismic sensors, delivering vibration and position data, monitors against user‑configurable fault thresholds, and enables early warning and protection for rotating machinery.

General Information
Brand: Bently Nevada
Country of Origin: United States
Model: 3500/42M
Part Number: 138700‑01
Series: 3500 Machinery Protection System
Product Type: Seismic/Proximity Monitor Module
Application: Turbines, compressors, high‑speed rotating equipment for vibration, position, velocity, and acceleration monitoring

Power Specifications
Supply Voltage: Supplied via system rack backplane
Power Consumption: Approximately 7.7 W typical
Protection Features: Embedded self‑test, channel fault detection, signal conditioning integrity monitoring

Communication & Interface
Inputs: Supports proximity probes, seismic sensors, velocity/acceleration transducers
Channel Count: Four channels, configurable as two channel pairs for functions such as radial vibration, thrust position, differential expansion, eccentricity, acceleration, velocity, or shaft absolute motion
Outputs: Buffered transducer outputs and 4‑20 mA recorder outputs per channel
Diagnostics: Monitoring of channel health, fault status indicators, bypass mode support

Environmental
Operating Temperature: –20 °C to +65 °C
Storage Temperature: –40 °C to +85 °C
Humidity: Up to 95% RH, non‑condensing
Installation: Rack mounted in control cabinet; designed for industrial machinery protection environments

Dimensions & Weight
Dimensions (L × W × H): 241.3 × 24.4 × 163.1 mm
Weight: Approx. 0.46 kg

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