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OPM223/253
Numeric calibration
During numerical calibration, the slope and zero point can be corrected manually.
Coding
Field
NUMERIC
N
CALIBRATION
function group
Enter reference
N1
temperature
N2
Enter slope
N3
Enter zero point
Calibration status is
N4
displayed
Store calibration
N5
result?
Setting range
Display
(Factory settings, bold)
25.0 C
-50.0 ... 150.0 C
Glass: 59.16 mV/pH
38.00 ... 65.00 mV/pH
Antimony: 59.16 mV/pH
25.00 ... 65.00 mV/pH
ISFET: 59.16 mV/pH
38.00 ... 65.00 mV/pH
Glass: 7.00 pH
5.00 ... 9.00 pH
Antimony: 1.00 pH
-1.00 ... 3.00 pH
ISFET: 0 mV
-500 ... +500 mV
o.k.
E xxx
yes
no
new
Store
Info
N
NUMERIC
25°C
N1
T°C Ref
59.16
mv/pH
For A4 = ISFET: enter the slope from
N2
the quality certificate.
Slope
7.00
pH
For A4 = ISFET: enter the voltage U
N3
from the quality certificate.
Zero
o.k.
pH
N4
Status
yes
pH
N5
Operation
IS
63
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