Bently Nevada 84152-01 Signal Input/Quad Relays Module

Technical Specifications and Hardware Overview

The Bently Nevada 84152-01 functions as a signal input and quad relay module for the 3500 series monitoring system. This module measures 152 mm in height, 38 mm in width, and 110 mm in depth for DIN rail mounting. It weighs approximately 0.65 kilograms, which enables straightforward handling during installation. The unit draws 0.3 A from a 24 V DC supply, consuming roughly 7.2 W under normal operation. It provides 4 independent relay outputs with Form C contact configurations. The module also includes 4 signal input channels for monitoring external status contacts.

Each relay handles switching voltages up to 220 V AC or 30 V DC. The contacts support continuous currents up to 2 A with a 60 W switching capacity. The signal inputs accept dry contact or 24 V DC source signals. The unit provides a response time of 5 ms for relay activation. It features optical isolation between inputs, outputs, and the internal logic. The module includes LED indicators for power, input status, and relay states. The operating temperature range spans -20°C to 65°C for harsh environments. Storage temperatures extend from -40°C to 85°C without causing damage. Humidity tolerance covers 5% to 95% non-condensing conditions.

Input and Relay Functionality

This module accepts 4 digital input signals from field devices and sensors. It processes these signals and activates corresponding relay outputs accordingly. The Bently Nevada 84152-01 provides 4 Form C relays for alarm and trip distribution. Each relay operates independently with individual input channel association. The unit uses optocouplers to ensure electrical isolation between circuits. It provides manual override switches for each relay channel during maintenance. The module supports both normally open and normally closed contact configurations.

Installation and Application Details

The 84152-01 mounts onto a standard DIN rail within control cabinets. It requires 25 mm clearance above and below for proper airflow. The module connects to field wiring via a screw-type terminal block. It interfaces with PLCs and DCS systems through relay contact outputs. The unit delivers a mean time between failures of 200,000 hours. It carries CE, ATEX, and CSA certifications for global deployment. The module passes vibration testing at 10 to 55 Hz with 0.15 mm amplitude. It withstands shock loads up to 5 g for 30 ms duration.