Overview
The Bently Nevada 3500/42M (135489‑02) is a four‑channel seismic and proximity monitor module designed for the 3500 Machinery Protection System. It accepts inputs from proximity probes or seismic sensors, conditions the signals, and compares measured values against configurable alert and danger thresholds to ensure reliable machinery protection.
General Information
Brand: Bently Nevada
Country of Origin: United States
Model: 3500/42M
Part Number: 135489‑02
Series: 3500 Machinery Protection System
Product Type: Seismic/Proximity Monitor Module
Application: Turbines, compressors, high‑speed rotating machinery vibration and position monitoring
Power Specifications
Supply Voltage: Derived from system rack backplane
Power Consumption: Approx. 7.7 W (typical)
Protection Features: Built‑in self‑test, fault monitoring, signal buffering
Communication & Interface
Inputs: Supports proximity probes, seismic sensors, velocity/acceleration transducers
Channels: Four channels configured as 2 × Prox/Accel and 2 × Velomitor
Outputs: Conditioned signals available for recorder or controller linkage
Diagnostics: Channel‑status indicators, health‑monitoring, 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 within industrial control cabinets, suitable for heavy‑duty machinery protection
Certifications: Compatible with SIL‑rated system options
Dimensions & Weight
Dimensions (L × W × H): 241.3 × 24.4 × 163.1 mm
Weight: Approx. 0.46 kg
