Dungs FRM 100025 HD, Instruction Manual, Page: 135 / 174

26 …64
Edition 10.15 • No
. 270 442
27 … 64
12.3 Commissioning / unlocking/ control of the set values
1. Slowly open the shutoff valve on the inlet side. The
ball valve on the outlet side remains closed.
2. Monitor the pressure rise on the pressure gauge on
the inlet side
upstream of the device.
3. SSD unlocking:
3.4 Compensate pressure by opening the compensa -
tion valve on the valve disc: Pull the protective cap A
downwards by approx. 2 mm.
3.5 Monitor the pressure rise on the outlet side of the
pressure gauge.
3.6 The operating pressure (closing pressure regulator)
on the outlet side reached: pull the protective cap A
to the stop and lock it.
3.7 SSD is open.
3.8 Unscrew the protective cap A from the push rod
and screw it again on the spring dome G.
4.0 Venting
4.1 Vent the test section in the atmosphere by using a
suitable hose. Do not use a test burner for venting.
4.2 The test section must be completely filled with gas:
make sure that the test section is free from air by us -
ing a test burner. Close the stop-cock on the venting
hose.
5.0 Check of the outlet pressure
5.1 Check the closing pressure of the regulator.
5.2 Open the vent valve and check the set value
(outlet pressure) on the pressure gauge and,
if necessary, correct it according to section 11.1
5.3 Close the vent valve, remove the hose,
insert the sealing cap A .
3.1
Unscrew the protective cap A .
A
3.2
Reverse the protective cap A and screw it again at the
push rod of the SSD.
A
3.3
A
Use the protective cap A as a handle.