Double
‐
stage tank regulator PS 25 bar
13 / 16
Fault cause
Action
OPSO cannot be unlocked
Regulator membrane is damaged:
Pressure regulator is defective, replace.
Restarting the safety overpressure shut-off valve OPSO / UPSO with visual indicator
If the safety overpressure shut-off valve OPSO / UPSO has responded, which you can see by
the red display - take the following steps.
1. Close the gas withdrawal valve.
2. Vent the pressure regulator
loosen the screw connection on the outlet side .
3. Ventilate the inlet pressure
Loosen the connection on the inlet side .
4. Tighten all connections again.
5. After elimination of defects, open the gas cylinder valve or the shut-off fittings.
6. Unscrew the protective cap by hand.
7. Turn the protective cap around and pull out the spindle with the release device
until the spindle clicks into place and remains open.
8. Screw the protective cap on again by hand.
9.
OPSO / UPSO
is ready to operate
and the display is
GREEN
.
10. Check for leaks.
