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Operation
Coding
Field
CALIBRATION
function group:
C (3)
Calibration for ORP
%
For the calibration, a sample of the medium is placed in two containers.
The contents of the first container is detoxified. The contents of the
second container remains unchanged. A relative value of 80 % is set
with the "toxic" sample. A relative value of 20 % is set with the "non-
toxic" sample.
Determine 80%
C31
value of the "toxic"
sample
Calibration is
C32
performed
Determine 20%
value of the "non-
C33
toxic" sample
Calibration is
C34
performed
Calibration status is
C35
displayed
Store calibration
C36
result?
62
Setting range
Display
(Factory settings, bold)
Calibration ORP %
Default values:
0 % = -1000 mV
100 % = +1000 mV
80%
0 ... 100%
mV value is displayed
20%
0 ... 100%
mV value is displayed
o.k.
E xxx
yes
no
new
The electrode can now be reinstalled in the process.
Info
Sensor adjustment with compensation
C
for wall effects.
CALIBRAT
The calibration range is ±1500 mV, the
minimum difference should be 60 mV.
Start the calibration of the "toxic"
sample by pressing the CAL key. The
%
80
value is accepted provided it is stable or
C31
confirmed with the CAL key (see
Sample 1
calibration pH).
mV
200
Accepted in the event of stability ≤
C32
±5 mV for more than 10 s.
CAL 80%
The procedure for C31 is repeated with
20
%
the "non-toxic" sample to calibrate value
C33
2.
Sample 2
Stability check:
mV
50
The value is accepted in the event of
C34
stability ≤ ±5 mV for more than 10 s.
CAL 20%
o.k.
C35
Status
If C35 = E xxx, then only No or New.
yes
If New, return to C.
C36
If Yes/No, return to "Measurement".
Store
OPM223/253
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