Endress+Hauser OxyMax W COS 71, Руководство по эксплуатации

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3 Installation OxyMax W COS 71
8 Hauser
Please pay attention to the following notes if the assembly is used in a pressure system
with reflow (Fig. 3.6) instead of free outlet:
"
Caution!
For pressures > atmospheric pressure
•
Pressurisation and work at a constant overpressure up to 10 bar poses no problems.
•
Rapid pressure loss at the measuring point leads to air degassing in the electrolyte
due to the sudden reductions in solubility. This could lead to a swelling of the sensor
membrane.
Avoid this problem by keeping up the pressure on the sensor. In the case of rapid
pressure loss e.g. during maintenance work on the pipeline close all the valves
(manual mode: manually actuated valves, automatic mode: solenoid valves, see Fig.
3.6, Pos. 4 and 5) of the assembly.
Fig. 3.5: Flow assembly COA 260 Fig. 3.6: Bypass installation with manually
actuated valves or solenoid valves
1 Cap 1 Main line
2 Pressing screw 2 Medium return
3 Intermediary 3 Flow assembly COA 260
4 Flow vessel 4, 5 Manually actuated or solenoid valves
6 Flow assembly COA 250-A
6 Medium removal
Ø 60
400
C07-COA260xx-11-07-00-xx-001.EPS
1
2
3
4
Required
total height
for sensor
installation or
removal
540 mm
1
2 3
4
5
6
C07-COA260xx-11-05-00-xx-001.EPS