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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model | 3500/33-01-00 |
| Product Type | 16-Channel Relay Module |
| Series | 3500 Machinery Protection System |
| Output Module Option | 01 – Standard 16-Channel Relay Output Module |
| Hazardous Area Option | 00 – None |
| Relay Outputs | 16 individually programmable SPDT relays |
| Alarm Logic | Configurable AND/OR voting logic |
| Relay Operation | Normally Energized or Normally De-Energized |
| Configuration Software | 3500 Rack Configuration Software |
| Rack Installation | Full-height front module |
| Installation Position | Any slot to the right of the 3500/22M TDI |
| Typical Applications | Alarm annunciation, shutdown logic, turbine protection, compressor protection |
| Compliance | Designed for integration into API 670 machinery protection systems |
Product Introduction
The Bently Nevada 3500/33-01-00 is a 16-Channel Relay Module designed for the Bently Nevada 3500 Machinery Protection System. It converts alarm conditions generated by vibration, position, speed, temperature, or process monitoring modules into relay outputs that can activate alarms, emergency shutdown circuits, PLC inputs, or Distributed Control System (DCS) interlocks.
The ordering code 3500/33-01-00 identifies a standard 16-channel relay output module (Option 01) with no hazardous-area approval (Option 00). Each relay can be programmed independently using configurable Alarm Drive Logic, including AND, OR, voting, latching, and Normally Energized/Normally De-Energized operating modes. This flexibility allows the module to support both simple alarm annunciation and complex machinery protection logic.
- 350033-01-00
- 350033-01-00
Installation & Configuration Guide
Stage 1 – Pre-Installation Preparation (10 Minutes)
⚠️ Safety First
- Notify operations before shutting down the machine.
- Perform Lockout/Tagout procedures.
- Remove power from the 3500 rack.
- Wait at least five minutes for internal capacitors to discharge.
- Wear an ESD wrist strap throughout the replacement.
Required Tools
- Phillips screwdriver
- Digital multimeter
- ESD wrist strap
- Wire markers
- Smartphone for recording wiring
Before Removal
- Save the complete rack configuration.
- Record firmware revisions.
- Photograph every terminal connection.
- Document relay assignments and shutdown logic.
Stage 2 – Remove the Existing Module (5 Minutes)
- Remove the rack front cover.
- Label every field cable.
- Disconnect the terminal connectors carefully.
- Release the locking mechanism.
- Pull the module straight out.
⚠️ Keep the original module until commissioning has been completed successfully.
Stage 3 – Install the New Module (10 Minutes)
- Verify the replacement is 3500/33-01-00.
- Inspect the backplane connector for bent pins.
- Install the module until it is fully seated.
- Lock the retaining tabs.
- Reconnect all field wiring.
Installation Checklist
- ✅ Correct ordering code
- ✅ Module fully seated
- ✅ Wiring verified
- ✅ Retaining tabs locked
Stage 4 – Power-Up & Commissioning (10 Minutes)
- Verify the 24 V supply before energizing.
- Apply rack power.
- Confirm the module status LEDs indicate normal operation.
- Connect using the 3500 Rack Configuration Software.
- Restore or verify the saved configuration.
- Simulate Alert and Danger alarms.
- Confirm every relay operates according to the programmed logic.
⚠️ Field Tip: If relay outputs do not respond correctly after replacement, verify the Alarm Drive Logic first. In practice, incorrect configuration is encountered far more often than hardware failure.
Frequently Asked Questions
Q1. What does the ordering code 3500/33-01-00 mean?
The ordering code is divided into options:
- 3500/33 – 16-Channel Relay Module
- 01 – Standard 16-Channel Relay Output Module
- 00 – No hazardous-area approval option
Q2. Can this module be replaced while power remains on?
No. The 3500/33 is not designed for hot swapping. Removing or installing the module under power may damage the rack backplane or produce unintended relay operations.
Q3. How many relay outputs are available?
The module provides 16 independently programmable SPDT relay outputs. Each output can use configurable Alarm Drive Logic, including AND/OR voting, latching, and Normally Energized or Normally De-Energized operation.
Q4. Which monitoring modules can drive these relays?
Any compatible monitor installed in the 3500 rack—including vibration, position, speed, temperature, and process monitors—can trigger relay actions through the configured Alarm Drive Logic.
Q5. Is this module still available?
Yes. Although it belongs to a mature product family, 3500/33-01-00 remains available through industrial automation spare-parts suppliers as new original stock, new surplus inventory, or professionally tested refurbished units, depending on market availability.
Q6. What installation mistake causes the most startup delays?
The most common issue is failing to restore the original relay configuration. Before removing the old module, always save the rack configuration and photograph the existing wiring. Those few minutes of preparation can prevent hours of troubleshooting.
Q7. Is this module suitable for API 670 machinery protection systems?
Yes. The 3500/33 is designed for use within the Bently Nevada 3500 Machinery Protection System, a platform widely deployed for API 670-compliant rotating equipment protection when installed and configured as part of a complete system.
