Advantech RS-485 user manual Zero calibration and span calibration must be com

I/O Modules

6.Only for ADAM-5018: Execute the CJC (cold junction sensor) Calibration command. This can be done with the ADAM utility software. (See the “CJC Calibration” option in the Calibration submenu of the ADAM utility software.)

Figure 4-17: Cold junction calibration

* Note:	Zero calibration and span calibration must be com-
	pleted before CJC calibration. To calibrate CJC, the
	thermocouple attached to ADAM-5018 and a stan-
	dard thermometer should be used to measure a
	standard known temperature, such as the freezing
	point of pure water. The amount of offset between the
	ADAM-5018 and the standard thermometer is then
	used in the ADAM utility to complete CJC calibration.

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