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The 3500/60 (133811-01) is a high-precision six-channel temperature monitor developed by Bently Nevada for the 3500 Machinery Protection System. This module functions as the primary processing unit within the 3500...
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The 3500/60 (133811-01) is a high-precision six-channel temperature monitor developed by Bently Nevada for the 3500 Machinery Protection System. This module functions as the primary processing unit within the 3500 rack, continuously monitoring thermal conditions of critical rotating machinery.
It accepts inputs from both Resistance Temperature Detectors (RTDs) and Thermocouples (TCs), providing real-time protection against overheating in bearings, stator windings, and turbine exhaust systems.
Designed for mission-critical environments, the 3500/60 (133811-01) compares incoming temperature signals against user-configurable alarm and danger setpoints. If limits are exceeded, the module initiates protective actions via the 3500 rack backplane. Integrated self-diagnostics continuously monitor sensor loop integrity and internal circuitry health, ensuring dependable operation in high-EMI and high-vibration industrial settings such as power plants and petrochemical facilities.
| Item | Specification |
|---|---|
| Model / Part Number | 3500/60 (133811-01) |
| Input Channels | 6 Fully Programmable Channels |
| Sensor Support | 100 Ω Platinum RTDs (3-wire & 4-wire); TC Type J, K, E, T, S |
| Update Rate | 100 ms per channel (standard configuration) |
| Resolution | 1°C or 1°F (software configurable) |
| Isolation | Dependent on paired I/O module |
| Dimensions | 2.2 cm × 12.4 cm × 12.6 cm |
| Weight | 1.15 kg |
The 3500/60 (133811-01) is widely deployed for monitoring:
Gas and steam turbines
Centrifugal compressors
High-voltage motors
Generator stator and bearing assemblies
It plays a critical role in preventing machinery failure caused by thermal expansion, lubrication degradation, or abnormal exhaust temperature rise.
Is the 133811-01 the same as the I/O module?
No. The 3500/60 (133811-01) is the main monitor module responsible for signal processing and protection logic. It must be paired with a compatible I/O module (e.g., 133819-01 for internal termination or 133827-01 for external termination) to connect field wiring.
Can I mix RTDs and Thermocouples on a single module?
Yes. The module can be configured via 3500 Rack Configuration Software to support mixed sensor types across its six input channels.
