Druck PV 210, Instruction Manual

Page: 6 / 44

Copyright 2005 Baker Hughes Company.
2 | PV 210 Instruction Manual–English
2.2 Pressure Release Valve (Figure A1)
Use this (1) to reduce or release the pressure in the
system. The amount of turn sets the rate to release the
pressure. Only minimum force is necessary to seal the
system.
2.3 Fine Adjust Vernier (Figure A1)
To make accurate adjustments to the pressure, turn the
fine adjust vernier (2) clockwise to increase the pressure or
counterclockwise to decrease the pressure.
2.4 Pressure/Vacuum Selector (Figure A1)
Before you change the mode, make sure that the pressure
release valve (1) is open. To change the mode, use an
applicable tool to push the selector (3) to the side specified
on the label.
2.5 Adjustable Pressure Relief Valve
(Figure A2)
Use this (8) to prevent damage to sensitive instruments. To
adjust the maximum output pressure, turn the screw in the
bottom of the pump handle.
3. Operation
3.1 Calibration/Comparison against an
Analog Gauge
1. Connect a reference instrument with a
hose (5)/adaptor (6) to a connector (4).
2. Use the same procedure to connect the instrument
under test to the other connector (4).
Note: The maximum torque for the adaptors is 15 Nm
(11 ft lb).
3. Set the fine adjust vernier (2) to the midpoint of its
travel:
Turn it fully clockwise, then four to six turns
counterclockwise.
4. Close the pressure release valve (1):
Turn it fully clockwise, and tighten to seal.
5. To set a maximum output pressure, use a screwdriver
to adjust the pressure relief valve (8):
Turn it clockwise to increase the pressure or
counterclockwise to decrease the pressure.
6. Operate the pump handle (7) until the pressure is
almost correct.
7. To adjust the pressure to the correct value, turn the fine
adjust vernier (2) clockwise to increase the pressure or
counterclockwise to decrease the pressure.
Note:
Initially, small pressure changes can occur
(thermodynamic effects, the seals settle, the hoses
expand). The pressure will stabilize after a short time.
8. You can also decrease the pressure by careful
operation of the pressure release valve (1).
9. To get a vacuum, set the pressure/vacuum selector (3)
to the vacuum position (as indicated on the pump label)
then use the same procedure as above.
Note: Before you change the mode, release the
pressure.
3.2 Operation with a High-Resolution
Pressure Calibrator
Because the resolution is better, it is possible you will see
more of the small pressure changes identified in step 7
above.
Note: On very high resolutions such as 1 mbar or
0.1 inH
2
O, small movement of the hose may result in
noticeable pressure changes.
4. Fault Finding
1. If the system appears to lose pressure, repeat the
above procedure. Make sure: there is no damage to the
seals, the adapters are tightened sufficiently, the
pressure release valve (1) is tightened sufficiently to
seal.
2. Do not try to tighten other connections on the pump.
These are factory set and changes can cause damage
to the sealed joints.
3. During leak tests, small air movements (in or out) are
possible around the pressure/vacuum selector (3).
This is normal.
4. If the PV 210 has not been used for a period of time, it
can be difficult to operate on the first stroke. It will
become free after this.
5. For seal replacement refer to the service kit
instructions.
If, for any reason, a fault occurs within the pump, it is
recommended that the equipment be returned to an
appointed agent.
INFORMATION
To prevent damage, when
the top of the pump body comes into view, DO
NOT use force to turn the fine adjust vernier
(2) farther out.
WARNING
DO NOT ignore the maximum
operating pressure specified on the pump
label.
Before you connect a pressure component to
the PV 210, 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.
INFORMATION
To prevent damage, when
the top of the pump body comes into view, DO
NOT use force to turn the fine adjust vernier
(2) farther out.