Start-Up; Liquid Level Measurement; Flow Rate Measurement - Samson Media 6 Mounting And Operating Instructions

Start-up

5 Start-up
– For start-up observe Figs. 4 and 5 on
page 15.
Initial position of the valves on the valve block
upon delivery:
– High-pressure shut-off valve (+) and
low-pressure shut-off valve (–) open.
– Equalizing valve closed.
Caution!
In cryogenic applications, the process me-
dium circulates when the equalizing valve is
open, causing the valve block to freeze over.
Note!
If necessary, check zero at the dp cell (see
section 6.3) and put the device back into op-
eration.
Note!
In measuring operation, make absolutely sure
that the equalizing valve is closed and the
shut-off valves are open.
20
EB 9527-3 EN

5.1 Liquid level measurement

1. Open low-pressure line by slow turning.
2. Close equalizing valve or bypass of the
valve block.
3. Open high-pressure line by slow turn-
ing.

5.2 Flow rate measurement

When measuring steam
Make sure that the steam does not have direct
contact with the measuring diaphragm of the
device. As a result, screw off the differential
pressure lines below the shut-off valves or
valve block and fill the device with water. Al-
ternatively, make sure the shut-off and equal-
izing valves or valve block are shut off and
wait approx. 20 min after the system was
started up (steam in system) until condensate
has collected in the differential pressure lines
above the valve and up to the orifice plate.
1. Slowly open high-pressure line.
2. Close equalizing valve or bypass of the
valve block.
3. Open low-pressure line.
4. Wait a little. Open both vent screws of
the dp cell one after the other until the
escaping condensate is bubble free.
Retighten the screws.
Vent the equalizing tanks in the same
way. Slightly tapping the housing of the
indicating unit or the equalizing tanks
helps the air escape.
5. Check zero (see section 6.3) and put the
device back into operation.