GOK FL 90-4 Montage- Und Bedienungsanletung Seite 22

Restarting the safety overpressure shut-off valve OPSO
If the safety overpressure shut-off valve OPSO 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  Open the test connector
• If there is no test connector  loosen the screw connection on the outlet side
• Ventilate the inlet pressure  Loosen the connection on the inlet side
3. Tighten all connections again.
4. Unscrew the protective cap
5. Turn the protective cap
until the spindle
6. Screw the protective cap
7. OPSO is ready to operate  and the display is GREEN.
8. Check for leaks.
10 / 12
Low pressure regulator Type FL 90-4, Type FL 91-4
by hand.
around and pull out the spindle
clicks into place and remains open.
on again by hand.
.
.
with the release device
Part No. 05 004 52 a
.