3. MOLSTIC-S OPERATION
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© 2004-2007 DH Instruments, a Fluke Company
3.4.2
DUT WITHOUT FLOW CONTROL CAPABILITY
3.4.2.1
FLOW CONTROL USING METERING VALVES
Slowly raise system pressure to desired test pressure:
Rotating the regulator’s
control knob clockwise raises the outlet pressure. Rotate counterclockwise
to lower the outlet pressure. Increase the system pressure to the desired
DUT operating pressure. Make final adjustments in control pressure in the
direction of increasing pressure in order to obtain the most accurate and
stable set point.
Open molstic-S shut off valve(s):
All shut off valves must be open to allow
test gas to fill the test system.
Adjust system flow rate:
Rotate the flow control valve adjustment knob to
set the desired flow rate on the molbloc-S. Fine adjustments in flow rate can
be achieved by combining adjustments in the supply pressure with
adjustments in the flow control valve.
3.4.2.2
FLOW CONTROL USING THE PRESSURE REGULATOR
Set inlet pressure to minimum:
Turn the regulator’s adjustment knob
counterclockwise until the spring force has been relieved.
Open molstic-S shut off valve(s):
All shut off valves must be open to allow
test gas to fill the test system.
Adjust system flow rate:
Rotate the regulator control knob in the clockwise
direction in order to raise the outlet pressure, and thus the flow rate through
the system. Rotate the regulator control knob in the counterclockwise
direction to lower the outlet pressure, and thus the flow rate.
