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AT4610/AT4710 User’s Guide
In order to eliminate the effect of lead resistance, RTD usually use 3-wire to connect, please do
it as per the above figure.
3.5.4
Connection of Resistance and 4-wire RTD
Figure 3-9 Connection of resistance and 4-wire RTD
4 terminal method can efficiently eliminate the error caused by lead resistance.
AT4610/AT4710 can only use 4-wire to measure resistance, high precise RTD also use 4-wire
method to connect.
TIP
The instrument uses 4-wire connecting method to measure resistors.