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Chematest 35
Maintenance
9.4.
Calibration
solution
Procedure
Calibration
errors
History
Resetting the
cell constant
A-96.730.121 / 160920
Calibration of the Conductivity Sensor
The calibration is carried out using a 0.01 mol KCl solution.
Use the calibration solution at a temperature between 18 °C and
30 °C and allow it to reach room temperature before use.
1 Plug the sensor cable into the sensor socket.
2 Select <Menu>/<Maintenance>/<Calibration>/<Electrode>/
<Conductivity> and follow the instructions on the screen.
If the calibration is aborted with the message "Calibration error!":
Make sure that the correct standard solution has been measured.
Clean the sensor as described in
Sensor, p.
33.
Repeat the calibration with a new standard solution.
The calibration history is stored in the conductivity sensor's internal
memory and can be reviewed in <Menu>/<Data Storage>/
<Calibration History>/<Sensors>/<Conductivity> while the conduc-
tivity sensor is plugged in.
Up to 64 calibrations are memorized. Then the oldest calibration is
deleted to save the newest one.
To return to the original, factory-set cell constant and to delete the
calibration history, plug in the sensor and select <Settings>/
<Sensor>/<Electrode>/<Conductivity>/<Reset cell constant>.
Cleaning the Conductivity
31
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