Advantages and disadvantages of RTD (resistance temperature detector)

Advantages:

There are some advantages of RTD (resistance temperature detector) which are given below,

• The RTD can be easily installed and replaced.
• It is available in wide range.
• The RTD can be used to measure differential temperature.
• They are suitable for remote indication.
• Stability maintained over long period of time.
• No necessity of temperature compensation.

Disadvantages:

There are some disadvantages of RTD (resistance temperature detector) which are given below,

• The RTD require more complex measurement circuit.
• It is affected by shock and vibration.
• Bridge circuit is needed with power supply.
• Slower response time than a thermocouple.
• Large bulb size.
• Possibility of self heating.
• Higher Initial cost.
• Sensitivity is low.

Resistance temperature detector