Advantech USB-4718 Manual do Utilizador descarregar pdf (Página 54)

USB-4718 User’s Manual 48

D.2 Current Input Calibration

You need to calibrate only one channel (AI0). The other channels of

USB-4718 will be calibrated automatically.

NOTE: Please make sure that the JP1 on USB-4718 is set to current input

mode before you start voltage input calibrating.

Step 1: Please follow the procedures of voltage input calibration but

select the current input range setting in Calibration Wizard.

Figure D.6: Select the current input range setting

Step 2: Please perform the zero range calibration (connect to a 0mA

current source) and the full range calibration (connect to a 20mA cur-

rent source) as well.

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Advantech USB-4718 Manual do Utilizador Página 54