WIKA DPT-10 - Manual (Page 60)

A B
+
1 5
6 7
+ –
2 4
3
II
I
III III
Fig. 45: Preferred installation for liquids
I DPT10
II 3 -fold valve block
III Precipitator
1 .5 Drain valves
2 .4 Inlet valves
3 Breather valve
6 .7 Vent valves on DPT10
A, B Blocking valves
Proceed as follows:
1 Close valve 3
2 Fill measuring system with medium.
Open valves A, B, 2, 4: Medium flows in
If necessary, clean the differential pressure lines: - with gases by
blowing out with compressed air - with liquids by rinsing.
3)
For this purpose close valve 2 and 4, i.e. block the instrument.
Then open valve 1 and 5 so that the effective pressure lines blow
out/rinse.
After cleaning, close valves 1 and 5
3 Remove air from instrument:
Open valves 2 and 4: Medium flows in
Close valve 4: Minus side will be closed
Open valve 3: Equalisation plus and minus side
Briefly open valve 6 and 7, then close again: Fill the measuring
instrument completely with the medium and remove air
3) Arrangement with 5 valves.
Installation for liquids
Prepare the adjustment
60 Differential pressure transmitter DPT10 - metal measuring diaphragm • Foundation Fieldbus
8 Set up
37246
-EN
-100120