Liquistation CSF48 Inputs: pH/ORP Incl. combi sensors
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10.2.4 Calibration settings
Stability criteria
You define the permitted measured value fluctuation which must not be exceeded in a certain
timeframe during calibration.
If the permitted difference is exceeded, calibration is not permitted and is aborted automatically.
Buffer recognition (only pH or combi sensor)
Automatic buffer recognition
To ensure a buffer is detected correctly, the measuring signal may deviate by a maximum of 30
mV from the value stored in the buffer table. This is approx. 0.5 pH at a temperature of 25˚C. If
both buffers - 9.00 and 9.20 - were used, this would cause the signal intervals to overlap and
buffer recognition would not work. For this reason, the device would recognize a buffer with a
pH of 9.00 as a pH of 9.20. --> Do not use the buffer with a pH of 9.00 for automatic buffer
recognition.
Path: Menu/Setup/Inputs/<Sensor type>/Extended setup/Calib. settings
Function Options Info
Stability criteria
Delta mV 1 to 10 mV
Factory setting
1mV
Permitted measured value fluctuation during calibration
Duration 10 to 60 s
Factory setting
20 s
Timeframe within which the permitted range for
measured value fluctuation should not be exceeded
Path: Menu/Setup/Inputs/pH or pH/Redox/Extended setup/Calib. settings
Function Options Info
Temp. compensation Options
•Off
•Automatic
•Manual
Factory setting
Automatic
Decide how you want to compensate the buffer tempe-
rature:
• Automatically using the temperature sensor of your
sensor (ATC)
• Manually by entering the buffer temperature
• Not at all
Temperature
Temp. compensation="Manual"
-50 to 250 ˚C (-58
to 482 ˚F)
Factory setting
25 ˚C (77 ˚F)
Specify the buffer temperature.
This setting only refers to compensation during calibration, not in measuring mode. You perform the
compensation in the measuring mode further down in the menu.
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