Bently Nevada 88149-01 Alarm Relay Outputs Assembly Module

Product Overview

The Bently Nevada 88149-01 is an Alarm Relay Outputs Assembly designed for the Bently Nevada 3300 Series machinery protection system.

Key Specifications

• Manufacturer: Bently Nevada (Baker Hughes)
• Product Family: Bently Nevada 3300 Series
• Type: Alarm Relay Outputs Assembly
• Part Number: 88149-01
• Related Assembly: P/N 88984-01 (associated barrier/earthing system component)
• Function: Alarm relay output for machinery protection annunciation
• System Compatibility: Bently Nevada 3300 Series Monitoring System

Installation Guide

1. System Verification: Confirm your monitoring system is a Bently Nevada 3300 Series rack before installation.
2. Module Installation: Install the 88149-01 assembly into the designated slot or location per the Bently Nevada 3300 system installation manual.
3. Relay Output Wiring: Connect relay output contacts to the plant annunciator, DCS input modules, or control interlock circuits. Follow the wiring diagram for proper contact polarity and load ratings.
4. Alarm Configuration: Use the 3300 system configuration software to assign alarm states (Alert, Danger) to specific relay outputs and configure voting logic.
5. Testing: Test relay operation by simulating alarm conditions. Verify proper contact closure, annunciator response, and interlock actuation.

FAQ

Q: What is the difference between 88149-01 and 88984-01?
A: The 88149-01 is the Alarm Relay Outputs Assembly. The 88984-01 is an associated barrier/earthing system component. Both are part of the 3300 series alarm output architecture.

Q: Is the 88149-01 compatible with the 3500 monitoring system?
A: The 88149-01 is designed for the 3300 series. For 3500 systems, Bently Nevada offers the 3500/32 4-Channel Relay Module and 3500/33 16-Channel Relay Module as modern alternatives.

Q: What relay contact ratings does the 88149-01 support?
A: For exact relay contact ratings (voltage, current, resistive/inductive load), consult the official Bently Nevada 3300 series datasheet or contact Bently Nevada technical support.

Selection Tips

• Verify your system is a Bently Nevada 3300 Series monitoring system before ordering.
• When replacing a failed assembly, match the exact part number (88149-01) to ensure identical electrical and mechanical characteristics.
• Determine the number of relay outputs required for your alarm annunciation and interlock logic.
• For new installations, consider upgrading to the 3500 Monitoring System with 3500/32 or 3500/33 relay modules for enhanced diagnostics and Ethernet connectivity.
• Ensure relay contact ratings are adequate for your load requirements (DCS inputs, annunciator lamps, contactor coils).