Fault Finding; General Specification - Druck PV 212 Manual De Instrucciones

pressure. Only minimum force is necessary to seal the
system.
2.3 Fine Adjust Vernier (Figure A1)
INFORMATION
NOT use force to turn the fine 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
Uncontrolled release of high
pressure is dangerous and may 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 primed, as indicated by pressure build-up on the
reference instrument or the instrument under test.
10. With the scissor handles (4) fully together, turn the
selector (3) to the "High" position. Operate the scissor
handles (4) until the pressure is almost correct.
Note: At higher pressures, it is easier to use short
handle strokes.
Copyright 2005 Baker Hughes Company.
2 | PV 212 Instruction Manual–English
To prevent damage, DO
11. 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.
12. To fully release the pressure from the system, slowly
turn the pressure release valve (1) counterclockwise
one full turn. This completes the procedure.
Note: Careful operation of the pressure release
valve (1) gives a controlled release of pressure.

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. Check the optional pressure release valve (10) setting,
if fitted.
3. When in operation, if the fluid level in the reservoir falls
by a large amount, this can create a partial vacuum and
affect pump performance. To prevent this, loosen the
fill plug (7) and let air into the reservoir.
4. If the PV 212 has not been used for a period of time, it
may 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.

5. General Specification

INFORMATION
compatible with stainless steel, anodized
aluminum, nitrile rubber, PTFE,
polypropylene, Delrin, acrylic and nylon.
Item Specification
Hydraulic Pressure Range PV 212-22: 0 to 700 bar (0 to 10,000
psi)
PV 212-23: 0 to 1000 bar (0 to 15,000
psi)
Pressure Connections ¼" BSP parallel female
Recommended Hydraulic De-mineralized water or low viscosity
Fluids mineral-based hydraulic oil.
Dimensions (Length x 230 mm (9.0") x 160 mm (6.25") x 70
Width x Depth) mm (2.75")
Weight (approximate) 1.45 kg (3.2 lb)
6. Returned Goods Procedure
If the unit requires calibration or is unserviceable, return it
to the nearest Druck Service Centre listed at: Druck.com
Contact the Service Department to obtain a Return
Authorization (Worldwide excluding USA).
In the USA, obtain a Return Material Authorization [RMA].
Provide the following information on either a RGA or RMA:
• Product (i.e. PV 212)
• Serial number
• Details of defect/work to be undertaken
• Operating conditions
Hydraulic fluids must be