Description
- Model Number: 146031-01
- Series: 3500 Series Machinery Protection System
- Module Type: 3500/60 Temperature Monitor
- Number of Channels: 6 channels per module
- Input Types: * RTD: 100 Ω Platinum (Pt100), 10 Ω Copper, or 120 Ω Nickel
- Thermocouple: Type E, J, K, T
- Isolation: 500 VDC (Channel-to-channel and channel-to-chassis)
- Output: Proprietary internal bus for 3500 rack and 4-20mA via Output Module
Product Description The Bently Nevada 146031-01 is the main processor module for the 3500/60 Temperature Monitor, a core component of the 3500 Machinery Protection System. This module is designed to provide high-accuracy temperature monitoring for critical rotating machinery. It can process inputs from up to six Resistance Temperature Detectors (RTDs) or Thermocouples (TCs). The module continuously compares these temperature readings against user-programmable Alert and Danger setpoints. When thresholds are exceeded, it triggers alarms via the rack’s backplane, which can then drive relay modules for automated machinery protection and shutdowns.
Application Areas This monitor is essential for protecting large-scale industrial assets where thermal health is a primary indicator of mechanical status. It is frequently used for:
- Bearing Temperatures: Monitoring radial and thrust bearings in turbines and compressors.
- Stator Windings: Protecting large motors and generators from insulation breakdown.
- Lube Oil Systems: Ensuring oil temperatures remain within safe operating viscosities.
- Process Fluids: Monitoring inlet/outlet temperatures in pumps and heat exchangers.
146031-01
146031-01
146031-01
Product Specifications
- Weight: 0.82 kg
- Dimensions: 241 mm x 24.4 mm x 103 mm (Single slot width)
- Country of Origin: USA
- Update Rate: 100 ms for all 6 channels
- Mounting: Full-size 3500 Rack (Standard or Internal Barrier versions)
Operational Precautions
- I/O Module Pairing: The 146031-01 module must be paired with the correct 3500/60 I/O module (e.g., 133819-01) located at the rear of the rack. Ensure the I/O module matches your sensor type (RTD/TC or Isolated/Non-isolated).
- Cold Junction Compensation: When using Thermocouples, ensure the I/O module is installed in a stable thermal environment to maintain the accuracy of the Cold Junction Compensation (CJC).
- Configuration: Use the 3500 Rack Configuration Software to set the specific sensor type and scale for each channel. Incorrect configuration can lead to false “Not OK” status or inaccurate alarm triggering.
- Shielding: Use shielded, three-wire extensions for RTDs to compensate for lead-wire resistance and minimize electromagnetic interference (EMI) from nearby power equipment.
Recommended Similar Product Models
| Model Number | Category | Feature Set |
|---|---|---|
| 146031-02 | Temp Monitor | RTD/TC Monitor (Isolated variant) |
| 133811-01 | I/O Module | 3500/60 RTD/TC I/O Module |
| 133819-01 | I/O Module | 3500/60 RTD/TC with Internal Barriers |
| 149986-01 | Temp Monitor | 3500/61 (6-Channel with Recorder Outputs) |
| 149992-01 | I/O Module | 3500/61 I/O Module |
