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Phone: +86 16626708626Description
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Channels | 6 independent temperature channels |
| Input Types | RTD (2-, 3-, 4-wire) and Thermocouple (TC) |
| Monitoring | Temperature and temperature differential |
| Power Consumption | Nominal 7 W |
| Rack Compatibility | 3500 Series main chassis |
| Outputs | Alarm and relay logic to 3500 system |
| Approvals | API 670 compliant |
| Operating Temperature | -20 to +65°C (typical for 3500 rack) |
| Recorder Outputs | None (3500/61 variant adds 4-20 mA) |
4. Product Introduction
The Bently Nevada 3500/60 is a 6-channel temperature monitor module for the 3500 Machinery Protection System. It accepts inputs from RTDs and thermocouples to monitor critical temperatures such as bearing metal, process fluids, or motor stator windings.
Plant engineers rely on this module for reliable early detection of overheating conditions in turbines, compressors, and pumps. It integrates directly into 3500 racks, drives alarms and relays, and supports API 670 requirements. Use the 3500/61 version if you need additional 4-20 mA recorder outputs per channel. Always verify I/O configuration and firmware compatibility with your existing 3500 rack before installation.
- 3500/60
- 3500/60
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No channel readings | Power or rack communication issue | High | Check module LEDs and 3500 rack power | Verify rack power supply and backplane connection |
| Erratic temperature values | Wiring fault or sensor failure | High | Measure sensor resistance/voltage at terminals | Test sensor independently; check for open/short circuits |
| Alarm not triggering | Incorrect setpoint or configuration | Medium | Review configuration in 3500 software | Download and verify alarm setpoints |
| Module not recognized | Firmware mismatch or slot issue | High | Check System Event List | Confirm module firmware matches rack requirements |
| High noise on readings | Grounding or shielding problem | Medium | Inspect field wiring shields | Ensure proper single-point grounding per manual |
| No differential temp | Channel pair not configured | Low | Check software channel pairing | Reconfigure for differential monitoring if needed |
If diagnostics point to the module itself, contact technical support with rack configuration files, event lists, and photos of the installation.
6. Frequently Asked Questions (FAQ)
Is this unit new original stock or refurbished? This is New Original / New Surplus from authorized channels. It ships in original packaging with full traceability. We perform inbound inspection and functional testing prior to shipment.
What sensors does the 3500/60 accept? It accepts standard RTDs (Pt100, etc.) in 2-, 3-, or 4-wire configurations and common thermocouple types. External termination blocks or internal barriers are available.
Do I need the 3500/61 instead? Choose 3500/61 only if you require individual 4-20 mA recorder outputs per channel. The 3500/60 provides identical monitoring and alarm functionality without recorders.
Is this module hot-swappable? Yes, 3500 series modules support hot-swap in most configurations, but follow the exact procedure in the manual to avoid disrupting other channels or triggering false alarms.
How long is the warranty? We provide a 1-year warranty on tested functional units. Extended options available on request.
Will this serve as a direct replacement for an existing 3500/60? In most cases yes. Document your current channel configurations, sensor types, and alarm setpoints first. Firmware and I/O options must match for seamless integration.
What comes in the box and do you provide test reports? Standard delivery includes the module. We supply our QC test report showing power-up, channel simulation, and communication tests. Full test videos and photos available upon request.
