App-4
IM 2553A-01EN
Appendix 3 RTD Calibration Wiring Examples
RTD calibration wiring examples are shown below.
Three-wire System
Wiring Example
Thermometer, data
logger, and the like
that support RTD
Pt100 input
2553A
Make the resistances of the
three lead wires the same.
White (A)
Red (b)
Red (B)
Red, white, A, and B are defined in IEC 60751: 2008 and JIS C 1604: 2013.
Configuring the 2553A
Set the RTD, temperature, and the like, and calibrate.
For details on the configuration procedure, see sections 6.1 to 6.3.
Four-wire System
Wiring Example
Thermometer, data
logger, and the like
that support RTD
Pt100 input
2553A
White (a)
Red (b)
White (A)
Red (B)
Red, white, A, and B are defined in IEC 60751: 2008 and JIS C 1604: 2013.
Configuring the 2553A
Set the RTD, temperature, and the like, and calibrate.
For details on the configuration procedure, see sections 6.1 to 6.3.
Note
To calibrate more accurately, use the fork terminal adapter set 758921 (sold separately) to connect the lead
wires (A and B) on the sensing side to the fastening sections of the 2533A output terminals.
Hi
Lo
2553A
White (A)
White (a)
Red (b)
Red (B)
White (A)
Red (b)
Red (B)
Four-wire system
Three-wire system
