Product Details
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FAQs
Q1: What is the primary function of the 3500/61-01-00?
It is a 6-channel Temperature Monitor that accepts RTD and thermocouple inputs, conditions the signals, and compares them against user-programmable alarm setpoints. Its distinguishing feature is the recorder output on each channel, which provides a +4 to +20 mA analog signal proportional to the temperature reading for transmission to DCS, SCADA, or chart recorders .
Q2: What is the difference between the 3500/61 and the 3500/60?
The 3500/61 and 3500/60 provide identical temperature monitoring functionality except that the 3500/61 provides recorder outputs for each of its six channels, while the 3500/60 does not provide recorder outputs . The 3500/61 consumes 9 W nominal power, while the 3500/60 consumes 7 W .
Q3: What is the difference between 133811-02 and 133819-02?
The 133811-02 is the Temperature Monitor main card (front panel) that processes temperature signals, generates alarms, and provides recorder outputs. The 133819-02 is the RTD/TC Non-Isolated I/O Module (rear module) that provides the physical terminal connections for field wiring. Both are required together to form a complete 3500/61-01-00 monitoring channel .
Q4: Can the 3500/61-01-00 accept both RTD and TC inputs simultaneously?
Yes. The RTD/TC non-isolated version (Option -01) can be configured to accept either TC or RTD inputs, or a mixture of TC and RTD inputs on the same module . The TC isolated version (Option -03) provides 250 Vdc of channel-to-channel isolation to protect against external interference .
Q5: What are the typical applications for the 3500/61?
It is widely used for monitoring radial bearing metal temperature, thrust bearing temperature, motor stator winding temperature, and process fluid temperature on critical rotating machinery such as steam turbines, gas turbines, large compressors, and pump sets in power plants, petrochemical facilities, and other industrial applications.