PA1001A – 7/02

Page 10 of 11

FOR CURRENT OUTPUT:

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Connect a digital milliampmeter or equivalent, across the current output terminals.

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On the PCA-121 select the “Coarse Range Adj” that corresponds to the maximum input

frequency. Refer to Table - 1 for selection options.

•

Adjust “4mA ADJ” control for desired “Zero” current (i.e. 4mA).

•

Inject the full-scale test frequency while adjusting “20mA ADJ” for current equal to SET (SPAN).

•

Iterate above steps until no change is observed.

FOR VOLTAGE OUTPUT:

NOTE: For proper adjustment of the voltage-output, First

Perform calibration of the current output.

•

Connect a digital voltmeter across the voltage output terminals.

•

On the PCA-121 select the “Coarse Range Adj” that corresponds to the maximum input

frequency. Refer to Table -1 for selection options.

•

•

•

Iterate above steps until no change is observed.

Control and Adjustment Detail for the PCA-121