2105552MNAE | RMC-100 |
163
Figure 7-53: AO current value set to 8 mA
d.
Verify that the measured value on the ammeter matches or is approximately the typed value
in the mA field.
e.
Re-verify with additional values, if necessary.
17.
Proceed to section
, Define engineering unit if the AO must reflect different engineering
units.
18.
If keeping the default engineering unit range (4-20 mA) click
Auto Mode
and
Close
to exit
calibration.
IMPORTANT NOTE:
Auto Mode takes the AO out of hold to resume normal operation.
7.2.3
Define engineering unit range
The engineering units fields permit a scale that is different from the default 4-20 mA range. This
means that the AO values do not display in electrical current values, but in user-specified units. The
values represent engineering units scaled across the 4-20 mA range. For example, the default output
range can represent a pressure measurement value range of 0 to 100 PSI where 4 mA represents 0
and 20mA represents 100. The engineering units and range associated with the analog outputs
depend on the external device specifications or the application driving the AO.
IMPORTANT NOTE:
Define the engineering units after calibration and while the analog output
screen is still in manual mode. This procedure defines an engineering unit range of 0-100 PSI.
Different applications might require different ranges or units. Use values that are appropriate for
your specific scenario and the external equipment specifications.
To define the engineering unit range:
1.
Click
Manual Mode
.
2.
Click
Low
in the Engineering Units column. The Enter Low Value dialog displays (
