Installation
Cleanfit P CPA472
18
Hauser
Gel sensors
Remove the sensor in the reverse sequence of operations.
!
Note!
In case of symmetrical pH measurement, you must push the PML connector onto the PML
connection (PML = potential matching line, position 1). Please, read the Operating Instructions of
the transmitter.
Sensor with liquid KCl electrolyte
1.
Pull the retractable pipe as far as possible out of the assembly ("Service" position).
2.
Turn the stop lock bolt through 90°, so that the plastic grooves are located above the recesses.
3.
Turn the retractable pipe
clockwise
until the stop lock bolt engages.
"
Caution!
If turned in the opposite direction, the stop lock bolt does not engage. This could, however, loosen
the sensor holder. The reason for this is adhesions on the lower part of the sensor holder. These can
cause the sensor holder to get stuck, producing a counterforce when unscrewing the sensor holder.
1. Remove the splash protection cap (Fig. 15,
pos. 5) from the assembly.
2. Then loosen the retractable pipe (pos. 2) by
turning it anticlockwise.
3. Install the sensor (pos. 7) instead of the
dummy plug (pos. 3):
– first screw by hand
– then tighten the sensor by approx. ¼ turn
using an open end wrench (AF 17).
4. Insert the measuring cable through the
retractable pipe (pos. 2):
– Fixed cable:
from the bottom through the retractable
pipe, from the sensor to the transmitter
– Plug-in head sensor:
from the top to the sensor head
5.
Plug-in head sensor only:
Connect sensor and cable.
6. Screw the retractable pipe back onto the
pressure cylinder (clockwise, by hand).
7. Place the measuring cable in the splash
protection cap and place the cap on the
retractable pipe.
8. Unlock the stop lock bolt (pos. 4).
a0002740
Fig. 15:
Sensor installation
1 PML
connection
2 Retractable
pipe
3 Dummy
plug
4
Stop lock bolt
5 Splash
protection
cap
6
Measuring cable with cable plug
7 Sensor
or
electrode
1
2
3
4
6
5
7
