14
Performing calibration
Prepare electrode and calibration solution.
Clean the electrode using deionised water and dry
carefully.
Insert the electrode in the vessel containing the cali-
bration solution and stir well.
Starting calibration: Press [Cal] key.
‘CAL’ appears momentarily in the display, then the pre-
vious cell constant is shown briefly:
You can terminate calibration at any time by pressing
the [Meas] key or [Hold] key. In this event, the previous
calibration setting is retained.
Input of calibration solution
The flashing display shows the last-used calibration
value or the factory-set 1413
µ
S/cm. You can change
this value via the
[
▲
]
or
[
▼
]
keys in the range from
1000...2000
µ
S/cm. The value you enter is the cor-
rect temperature (non-compensated) LF value. You
then confirm and complete your choice by pressing
the [Store] key. During calibration, CAL flashes in the
display. If the value is stable, calibration is complete
and the new cell constant is briefly shown in the dis-
play. If the cell constant calculated during calibration
is outside the range 0.55 +/-0.11 1/cm, an error mes-
Meas
Hold
Store
Summary of Contents for AQUALYTIC SensoDirect CD 24
Page 22: ...22 1 2 3 14 Assembling Carrying strap...
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