163179-02 | Bently Nevada 3500/61 Temperature Monitor (with Recorders)

The 3500/61 Temperature Monitor provides accurate monitoring and alarm capabilities for temperature measurement in industrial systems. It supports up to 6 RTD or TC transducer signals and is commonly used with recorders for real-time temperature tracking.

Specifications

Inputs

Signal:
Accepts from 1 to 6 RTD or TC (Thermocouple) transducer signals.
Input Impedance:
Greater than 10 MΩ for each lead input.
Power Consumption:
3500/61: Nominal power consumption of 9 watts.

Outputs

Front Panel LEDs:
- OK LED: Illuminates when the Temperature Monitor is functioning properly.
- TX/RX LED: Indicates communication between the Temperature Monitor and other modules in the 3500 rack.
- Bypass Mode LED: Illuminates when the Temperature Monitor is in Bypass Mode.
RTD Current Source Value:
- 925 ±15 µA @ 25°C per transducer (single supply for 4-wire RTD, and two supplies for 3-wire).
Recorder Output:
- +4 to +20 mA: Values proportional to the monitor’s full-scale measurement.
- Individual recorder values are provided for each channel. Monitor operation is unaffected by short circuits on recorder outputs.

Alarms

Alarm Setpoints:
- The user can set Alert and Danger setpoints using software configuration.
- Alarms are adjustable from 0 to 100% of full-scale for each measured value.
- If the full-scale range exceeds the sensor’s range, the sensor limits the setpoint.
- Accuracy of alarms is within 0.13% of the desired value.
- Both under and over alarm setpoints are available.
Proportional Values:
The Temperature Monitors return temperature proportional values used to monitor the machine.

Environmental Limits

Operating Temperature:
- -30°C to +65°C (-22°F to +150°F) when used with Internal/External Termination I/O Modules.
- 0°C to +65°C (32°F to +150°F) when used with Internal Barrier I/O Modules (Internal Termination).
Storage Temperature:
-40°C to +85°C (-40°F to +185°F).

Physical Dimensions

Monitor Module Dimensions (H x W x D):
241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in)
Weight: 0.91 kg (2.0 lbs)

Part Numbers

163179-02 | 3500/61 Temperature Monitor (with recorders)
133811-02 | 3500/61 Monitor (Replaced by part number 163179-02)

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