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2.3 Fine Adjust Vernier (Figure #1)
INFORMATION
adjust vernier (2).
To make accurate adjustments to the pressure, turn the fine adjust vernier (2) clockwise to
increase the pressure or counterclockwise to decrease the pressure.
3. Operation
WARNING
cause damage to equipment. Because the internal pressure can get very
high during operation, make sure that all the connections are made
correctly.
DO NOT ignore the maximum operating pressure specified on the pump
label.
Before you connect a pressure component to the PV 212, make sure that it
is isolated from the pressure supply and release the internal pressure
slowly. DO NOT connect the pump to an external pressure source.
1.
Remove the reservoir fill plug (7), fill the reservoir (5) to the indicated level (11), and
replace the fill plug.
2.
Connect a reference instrument to connection (8).
Note: Use PTFE tape or appropriate sealant to seal all NPT connections. Do not
use PTFE tape on parallel threads. If PTFE tape is used to seal NPT threads, ensure
that only a sufficient amount is used to achieve pressure seal. If excess tape is
used, particles can become loose during the connector mating process and enter
the pump, potentially leading to loss of pump performance or pressure leaks.
3.
Connect the instrument under test to connection (9). Use pressure-rated flexible
hose or use the optional accessories to direct mount it.
4.
Set the fine adjust vernier (2) to the midpoint of its travel. Turn it fully clockwise, then
four to six turns counterclockwise.
5.
Open the pressure release valve (1). Turn it fully clockwise and then one turn
counterclockwise.
6.
Squeeze the scissor handles (4) fully together and turn the selector (3) to the "Prime"
position.
7.
Remove trapped air from the pump by squeezing the scissor handles (4) several
times. Make sure that the fluid inlet tube (6) remains immersed in fluid at all times.
8.
Close the pressure release valve (1) by turning it fully clockwise, and tighten to seal.
9.
To prime the system, squeeze the scissor handles (4) together and then release them
to get the fluid into the pump cylinder. Repeat this operation until the system is fully
4 | PV 212 Instruction Manual-English
All manuals and user guides at all-guides.com
To prevent damage, DO NOT use force to turn the fine
Uncontrolled release of high pressure is dangerous and may
© 2005 Baker Hughes, a GE company – All rights reserved.
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