Instruction Manual
KH Director®
EN
2018-02-19
29
4.12
Mounting the pH-Electrode
After successful calibration, the
pH-Electrode
can be
installed. To do this loosen the locking nut on the side of
the KH Director and push the electrode into the device or
rather into the measurement cell until it stops. Then turn
the locking nut tight again.
Make sure that the rubber seal is seated correctly and
that the screw connection cannot be loosened, and
ensure that no water can escape.
TIP
To keep the rubber seal smooth and dense, we recommend rubbing it with
Vaseline thinly from time to time.
DANGER
•
Incorrect installation of the
pH-Electrode
can destroy the
KH Director
!
•
Any repair caused by this is not a warranty claim and is therefore
subject to a charge.
WARNING
Please note that the pH electrode must not dry out.
KH Director retains a small amount of water in the cell after each
measurement to protect the pH electrode from drying out.
After 3 days without measurements, it is possible that the humidity in the
measuring cell is insufficient and the electrode could dry out.
If the KH Director should not carry out any measurements for more than 3
days, please remove the electrode and attach the supplied electrode
protection cap to the electrode with approx. 1 drop of liquid (ideally KCl 3
mol / l).
Only re-install the electrode when measuring again.
During prolonged inactivity, the electrode must be recalibrated.