IM 12D7B3-E-E
Calibration 6-2
6-2. Calibration procedure
ENT
ENT
>
Select the flashing digit with the
>
key.
Increase its value by pressing the
key
>
Set the value
using the
>
,
,
ENT
key.
Put the sensor in standard
solution. Press
YES
.
When the correct value is displayed,
press
ENT
to enter the change.
After briefing displaying WAIT,
the CAL.END message appears.
The calibration is now complete. Put the
sensor back in the process and press
YES.
NO
YES
N O
YES
MODE
NO
YES
YES
ENT
NO
MODE
YES
MODE
MEASURE
DISPLAY
CAL
HOLD
Press the
MODE
key.
The legend CALIB
appears, and the
YES/NO
key prompt flags flash.
ENT
The cell constant is automatically updated after the calibration and the new
value can be read on the display as described in section 4.5.
The calculation is as follows: Cell constant in /cm= (Conductivity of calibration solution in mS/cm) x
(Cell resistance in kOhm)
Comparing this calibrated cell constant with the initial nominal cell constant in service code 03 gives a good
indication of the stability of the sensor. If the calibrated cell constant differs more than 20% from the nominal
cell constant error E3 is displayed.
