SensoGate WA131MH
27
5.3.4 Liquid-Electrolyte Sensor: Installation
Note:
To ensure that the electrolyte flows from the reference electrode to the process medium, the air
pressure in the pressure chamber must be 0.5 to 1 bar above that of the process medium.
1
2
3
4
01.
Move the SensoGate WA131MH into the SERVICE position.
Moving into the SERVICE Position, p. 24
02.
Check outlet and leakage bores for escaping process medium. If process medium escapes, depres-
surize the process and perform troubleshooting.
03.
Loosen the small coupling nut
(1)
by a few rotations; do not loosen completely.
04.
Fully loosen the large coupling nut
(2)
and pull off the entire unit.
05.
Remove the watering cap from the sensor tip and rinse the sensor
(3)
with water.
06.
Remove the closure of the filling hole
(4)
of the sensor
(3)
.
Note:
In the case of inclined installation, turn the electrolyte filling hole towards the top to prevent
electrolyte from flowing out during operation of the SensoGate WA131MH. Observe any deviating di-
rection of installation specified by the sensor manufacturer.
07.
Push in the sensor
(3)
.
2
3
2
1
5
7
6
8
9
9
08.
Position the large coupling nut
(2)
and fasten finger tight.
09.
Fasten the small coupling nut
(1)
finger tight.
10.
Connect the sensor cable
(5)
.
11.
On first-time installation: Hold the sensor cable
(5)
in a loop and fasten it with the clamp
(7)
. Dur-
ing this process, the sensor cable loop must be long enough so that the sensor cable does not im-
pede the stroke movement of the SensoGate WA131MH.
12.
On first-time installation: Connect the air pressure inlet for the pressure chamber to the connec-
tion nipple
(9)
.
13.
On first-time installation: Optionally connect the equipotential bonding line
(8)
to the clamp
(6)
.
