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Set Current Range
Define the range of readings that the 0-to-20 or 4-to-20 mA output will
represent. You can also choose to set a reverse analog output range. For
example, 0 mA can correspond to the high end of the oxygen range, and
20 mA can correspond to the low end of the oxygen range.
The range of readings the current output represents is also a function of
the type of process readings the analog output port tracks (see the "Select
Function" section later in this chapter for the types of readings the current
output can represent).
See the "Set Current Mode" section for help on choosing either a 0-to-
20 mA or 4-to-20 mA scale.
NOTE
Setting the current range
1.
Select an analog output port.
2.
From the Analog Range key menu, select Set Current Range.
You will be prompted to define the new value to correspond to the 20 mA
analog output:
where y is the analog output port, and xx is the present value that the cur-
rent output currently represents (for example, 10 % O
that appears depends on the analog port you selected.
3.
Input the value to correspond to the 20 mA analog output.
You will be prompted to define the value to correspond to the 0 or 4 mA
analog output:
where xx is the value that the current output currently represents.
4.
Input the value to correspond to the 4 (or 0) mA analog output.
Out # y 20 ma = xx
New Value?
Out # 1 4 ma = xx
New Value?
Controller / User Interface | 4-15
). The output port
2
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Troubleshooting
