18
Installing and Removing a Sensor
Ceramat® WA 160(X) Retractable Fitting
NOTICE!
Sensors must only be installed or removed by trained personnel authorized by the
operating company. The Ceramat WA 160(X) retractable fitting must be in
SERVICE
position
.
This position is attained by:
•
the service switch (see Unical® 9000(X) Installation Guide)
•
the “Maintenance” menu when controlled by Protos® 3400(X)
- see user manuals of PHU 3400(X)-110, FIU 3400X-140 or
FIU 3400-141 modules
Be sure to follow the assembly instructions step by step.
Preparatory steps:
•
Check whether the sensor is damaged (glass broken?). Never install a damaged sensor!
•
Check whether slide washer or O-ring on the sensor are damaged and replace if required.
•
Remove the watering cap from the sensor tip and rinse sensor with water.
•
Internally pressurized sensors might have a silicone seal on the diaphragm (as transport
protection). Remove this seal using the knife shipped with the sensor.
For installing or removing a sensor, you must separate the drive unit from the immersion tube.
To do so, move the drive unit to
SERVICE position
.
NOTICE!
The drive can only be separated when the
SERVICE position
has been fully reached.
Any attempt to forcibly detach the drive in any other position will damage the fitting.
Before removing the drive, check that there is no liquid flowing out of the outlet
(ceramic slides or probe housing might be defective).
