5.4 Setting of Analog Outputs
5.4.1 Analog Output 1
The route for setting Analog output 1 is Tools menu\Service (Password level 1:
9490)\Analog in/out settings\Analog output 1.
Analog output 1 (Ao00) is connected to terminal A-OUT connection 1 & 2 with default
setup to indicate the actual oxygen value in percent.
Freeze output: The freezing of the
output signal after back-flushing or
calibration is set up at 20 seconds by
default.
Analog Output Scale: The analog
output signal can be scaled by editing
the minimum and maximum values
(DispMin/DispMax).
The scale is freely configurable, but
usually only the maximum setting is
changed. The range of the output sig-
nal must correspond to the require-
ments and settings of the external in-
strumentation or system.
The default setting is 0.0–25.0 % oxy-
gen (0.0 % ≙ 4 mA and 25.0
% ≙ 20 mA). This is appropriate
where the external instrumentation is
operating with an input scale of 4–20
mA and display of 0.0–25.0 % oxygen.
If however, the external instrumenta-
tion is working with an input in a dif-
ferent range – for example 0.0–10.0 %
O
2
, i.e. 0.0 % ≙ 4 mA and 10.0
% ≙ 20 mA – then the maximum val-
ue in DispMax has to be changed – in
this example to 10.0.
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