Page 35 - Shellie Suzana Binti Saad
P. 35
RTD
(OERATIONAL CIRCUIT)
RTD Configurations are:
Two Wire
Used only in applications where
the receiving device connects
directly to the sensor.
Three Wire
It compensates resistance
based on length differences
by adding a third lead to the 4
RTD.
Four Wire
They are used where superior
accuracy is critical or if the
sensor is installed far from
the receiving device.
The number of lead wires directly affects such
factors as accuracy, stability, installation budget,
and distance between sensor and receiver.
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