Ametek Thermox 2000 ATEX Series User Manual page 89

Set Current Range
This menu option allows you to define the range of readings that the 0-
to-20 or 4-to-20 mA (milliamp) output will represent. You can also choose
to set a reverse analog output range, so, for example, 0 mA can corre-
spond 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
what 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
To set the range of readings that the selected current output represents,
do the following:
1. Select Set Current Range from the Analog Range key menu after
selecting an analog output port.
You will be prompted to define the new value to correspond to the 20
mA analog output:
Out # y 20 ma = xx
where y is the analog output port, and xx is the present value that
the current output currently represents (for example, 10 % O
Although we use output port #1 for this example, the output port
that will appear depends on the analog port you selected.
2. Type the value to correspond to the 20 mA analog output.
You will then be prompted to define the value to correspond to the 0
or 4 mA analog output:
Out # 1 4 ma = xx
where xx is the value that the current output currently represents.
3. Type the value to correspond to the 4 (or 0) mA analog output.
New Value?
New Value?
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