Presys PCA-570-RM Technical Manual page 55

Advanced pressure calibrator

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For example, for a pressure transmitter, channel-2 must be set as Pressure Input and the pressure must be manually

generated (with a pump, for example) and connected to the PCA-570. To enable channel 2 as input, press the icon

and enable the CA-2 option. To return to the Calibrator screen press the BACK button. The channel-2

measurement or generation signal will act as the default value for the instrument's range setting.

Generate at the transmitter input the signal corresponding to the lower range value and press the button

The transmitter will generate 4 mA for this value. Generate the signal corresponding to the upper range value and

press the button

Another way to adjust with reference is to enter the HART option. Go back to the main menu by pressing the

icon

and the START button. Select the HART

CONNECT.

Fig. 36 - HART

. The transmitter will generate 20 mA for this value.

Fast Adjustment with Reference

option, set the connection type, address and then press

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Pca-570-dt