Hart Transmitter Ma Output Adjustment - Presys PCA-570-RM Technical Manual

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In the MONITORING screen, in addition to the indication of the primary PV variable and the transmitter
current, the value measured or generated by the PCA-570 at the CA-2 is shown. If the CA-2 is configured as an
output, press on the number to change the output value.
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2.5.5. HART Transmitter mA Output Adjustment
In the STANDARD SETUP tab, you can adjust the HART
according to the PCA-570 current measurement. You can only make this adjustment when the PCA-570 is connected
to a single transmitter with address 0, with connection type mA INPUT + HART
current to make the adjustment.
Before making the adjustment the current output of the transmitter can be checked by pressing the CHECK
button. The transmitter will now generate fixed currents (4 mA, 8 mA, 12 mA, 16 mA, 20 mA) and the calibrator will
display the measured values for each point.
To make the adjustment automatically, simply press the AUTO button. The calibrator will command the
transmitter to generate 4 and 20 mA (fix), measure these points, and adjust the output (trim). The adjustment is
complete when the message D/A Adjustment Complete appears.
The WAITING TIME field sets the settling time (in seconds) for each point.
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transmitter current output (Output Trim)
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, since the calibrator must measure