In process instrumentation, TT stands for?

In process instrumentation, TT stands for?

• A. Temperature Tester
• B. Thermal Transmitter
• C. Temperature Transmitter
• D. Time Transformer

Answer: (C)

In process instrumentation, TT stands for Temperature Transmitter. A Temperature Transmitter takes the signal from a temperature sensor (like a thermocouple or RTD), conditions and linearizes it, and sends a standardized signal (typically 4–20 mA) to the control system. This enables accurate remote monitoring and control with good noise immunity and compatibility with plant instrumentation. The other terms don’t fit standard practice: Temperature Tester isn’t a common control device; Thermal Transmitter isn’t used to describe temperature measurement in process control; Time Transformer isn’t relevant to temperature measurement. Hence, Temperature Transmitter is the correct designation.

In process instrumentation, TT stands for Temperature Transmitter. A Temperature Transmitter takes the signal from a temperature sensor (like a thermocouple or RTD), conditions and linearizes it, and sends a standardized signal (typically 4–20 mA) to the control system. This enables accurate remote monitoring and control with good noise immunity and compatibility with plant instrumentation.

The other terms don’t fit standard practice: Temperature Tester isn’t a common control device; Thermal Transmitter isn’t used to describe temperature measurement in process control; Time Transformer isn’t relevant to temperature measurement. Hence, Temperature Transmitter is the correct designation.