Rockwell Automation 937CU-AITXF-DC1 Transmitter Supply Converter Installation Instructions - Manual (Page 17)

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Bul. 937C Transmitter Supply Converter Installation Instructions
The device measures in mA. If you have selected different units, the device calculates the measured value in the
selected units using the parameters Zero point and Conversion factor.
The parameters for you application must be determined according to the following formula:
An arbitrary value between -15 mA and +15 mA can be set as the Zero point, and values between 0.100
and 5000 as the Conversion factor.
The following includes examples where the formulas are applied.
Measured value in
the selected units
Editing device data: Input
Line monitor
If you select On for LB,an input current <0.2 mA will be registered as a lead break.
If you select On for SC,an input current >0.22 mA will be registered as a short circuit.
If you wish to process the <0.2 mA input values as measured values, you must deselect the lead
breakage deterction (Off LB). If not, an error will be signalled within the measuring range.
=(Original measured value{mA] - Zero point) x Conversion factor
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Zero point and Conversion factor