Product Brief: Bently Nevada 3500/60 Temperature Monitor (133819-01)
The 3500/60 Temperature Monitor (part number 133819-01) is a 6-channel temperature monitoring module in the Bently Nevada 3500 series machinery protection system. It accepts both RTD (Resistance Temperature Detector) and TC (Thermocouple) inputs, providing continuous temperature monitoring and protection for critical rotating machinery components such as bearings, windings, and inlet/exhaust gases.
Key Features
6 independent temperature input channels.
Supports RTD (Pt100, Ni120, etc.) and thermocouple (J, K, T, E, N, R, S, B) types.
Configurable alarm and danger setpoints with latching/non-latching options.
Provides both analog outputs (via 3500/32 relay module or communication processors) and digital data to system.
Can be used in redundant power supply configurations.
Alarm and trip logic programmable per channel.
Parameters (Table)
| Parameter | Specification |
|---|---|
| Model | 3500/60 |
| Part Number | 133819-01 |
| Product Type | Temperature Monitor Module (6-channel) |
| Dimensions (Height x Width x Depth) | 241 mm x 25 mm x 242 mm (9.5 in x 1.0 in x 9.5 in) – occupies one slot in 3500 rack |
| Weight (approx.) | 0.9 kg (2.0 lb) |
| Number of Inputs | 6 differential inputs |
| Input Types | RTD (2-, 3-, or 4-wire); Thermocouple (grounded or ungrounded) |
| RTD Support | Pt100, Cu100, Ni100, Ni120, custom |
| TC Support | J, K, T, E, N, R, S, B |
| Scan Rate | User configurable (typical 1 to 60 seconds per channel) |
| Resolution | 16-bit (typical 0.1°C) |
| Accuracy | ±1°C for TC; ±0.5°C for RTD (typical) |
| Output to Backplane | Digital values, alarms, and raw data |
| Alarm Outputs | Configurable via separate 3500/32 relay module or 3500/15 power supply module backplane comms |
| Operating Temperature | -30°C to +65°C (-22°F to +149°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Power Consumption | 6.5 W (typical from rack) |
Application Scenarios (use cases)
| Application Area | Description |
|---|---|
| Steam Turbine Bearing Temps | Monitors bearing metal and oil outlet temperatures to prevent overheating and damage. |
| Gas Turbine Exhaust Monitoring | Measures exhaust gas temperature (EGT) spread using thermocouples, critical for combustion monitoring. |
| Generator Winding Temps | Monitors stator winding and core temperatures via embedded RTDs for generator protection. |
| Compressor Bearing Protection | Detects abnormal temperature rise in journal or thrust bearings, preventing seizure. |
| Hydro Turbine Thrust Bearing | Monitors large thrust bearing pads (multiple RTDs per pad) for even load distribution. |
| Motor Windings (Large Induction Motors) | Prevents insulation failure by monitoring winding temperature rise. |
| Oil & Gas Process Pumps | Provides bearing and seal temperature monitoring for critical centrifugal pumps. |
| Turboexpanders / Cryogenic Apps | Monitors extremely low (cryogenic) and high temperatures with appropriate sensors. |
Notes
The 133819-01 is a 6-channel temperature monitor. It requires a 3500/32 Relay Module (or similar) to output alarm/trip signals to field relays.
Supports internal channel conformity testing for safety-critical applications.
Must be used with compatible termination I/O modules (e.g., 3500/60 terminal block, sold separately) for field wiring.
Configuration is done via 3500 System Configuration Software (required for alarm setpoints, sensor type, and input assignments).
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