Overview
3500/33-01-00 is a standard 16-Channel Relay Module from Bently Nevada™ (a Baker Hughes
company), part of the 3500 monitoring system.
149992-01 refers to the compatible spare 16-Channel Relay Output Module for 3500/33-01-00.
3500/33-01-00 and 149992-01 provide 16 independently programmable SPDT (Single-Pole Double-
Throw) relay outputs.
3500/33-01-00 and 149992-01 are designed for industrial machinery protection and control a
pplications.
3500/33-01-00 and 149992-01 support flexible voting logic and alarm drive programming.
3500/33-01-00 and 149992-01 integrate seamlessly with the 3500 system to deliver reliable relay
control in harsh and hazardous environments.
![3500 33-01-00 149992-01]()
Core Functionality
●16 Independent Relay Channels: Equipped with 16 SPDT epoxy-sealed relays, each supporting
independent programming of voting logic and Alarm Drive Logic.
●Flexible Alarm Programming: Alarm Drive Logic uses AND/OR logic, configurable via 3500 Rack
Configuration Software. Supports inputs from alarming statuses (alert/danger), Not-OK signals, and
individual measured variables from any monitor channel in the rack.
●Selectable Operating Modes: Four groups of four channels (switch-selectable) for Normally De-
energized (ND) or Normally Energized (NE) operation, adapting to diverse control requirements.
●Status Monitoring: Front-panel LEDs include OK (module operational), TX/RX (communication with
rack modules), and CH Alarm (individual channel alarm state) indicators for real-time visibility.
●Built-in Protection: Each relay features a standard 250 Vrms arc suppressor to prevent contact
damage and ensure stable switching.
Installation & System Requirements
●Rack Position: Installed in any full-height slot to the right of the 3500 TDI (Transient Data Interface)
Module.
●Software Requirements: 3500 Rack Configuration Software v3.3+, 3500 Data Acquisition Software
v2.40+, 3500 Data Display Software v1.40+.
●Wiring Caution: Hazardous voltage risk during field wiring; disconnect power before servicing to
avoid electric shock.
