Overview
The 3500/70M 176449-09 is a vibration monitoring module for reciprocating compressors and similar machinery. It monitors velocity and impulse signals to detect abnormal conditions and trigger alarms. The module supports up to 4 channels of sensor input.
General Information
Part Number: 176449-09
Manufacturer: Bently Nevada
Brand / Country of Origin: Bently Nevada / USA
Series: 3500/70M
Type: Recip Impulse/Velocity Monitor Module
Mounting: Rack-mounted in 3500/70M system chassis
Function: Processes sensor data and triggers alerts when thresholds are exceeded
Power Specifications
Supply Voltage: 24 V DC via backplane
Power Consumption: Approx. 7.7 W
Protection: Integrated current fold-back and overload protection
Indicators: LEDs for OK, communication (TX/RX), and bypass status
Communication & Interface
Interface Type: Backplane connection compatible with 3500/70M chassis
Input Channels: 1–4 velocity or acceleration sensor inputs (proximitor or seismic transducers)
Diagnostics: LED indicators and system software display module status and faults
Compatibility: Fully compatible with 3500/70M rack modules
Environmental
Operating Temperature: −20 to +70 °C
Storage Temperature: −40 to +85 °C
Humidity: Up to 95% RH, non-condensing
Protection Rating: IP20
Cooling: Passive
Dimensions & Weight
Dimensions (L × W × H): 241.3 × 24.4 × 241.8 mm
Weight: 0.91 kg



