Baker Hughes Druck DPI 610 IS, Instruction Manual

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Copyright 2007 Baker Hughes Company.
58 | DPI 610/615 IS Instruction Manual–English
Chapter 9. Hydraulic Calibrator Versions
7. Switch the instrument ON and, still using the priming pump (2), pressurize the system to
approximately 2 bar (30 psi).
8. Close the isolation valve (6) disconnect the bleed hose assembly (1) from the priming port.
9.5 Operation
To obtain a pressure reading, proceed as follows:
1. Switch the instrument
ON and select the required TASK .
2. Rotate the screw-press clockwise to increase the applied pressure.
Note: When hydraulic fluid is compressed and flows through a restriction, there is an
increase in temperature that affects the pressure. Allow sufficient time for this pressure
reading to stabilize before recording or logging a reading.
3. After testing, reduce the pressure in the system to zero by turning the screw-press counter
clockwise. Before disconnecting the UUT, open the isolation valve.
4. Remove the connection to the UUT and fit a blanking plug into the instrument’s pressure
port. Clean any spilled fluid off the instrument case.
9.6 Draining the Hydraulic Fluid
To drain the hydraulic fluid from the instrument, proceed as follows:
1. Turn the isolation valve (4) fully counter clockwise. Turn the instrument onto the left hand
side (pressure port nearest to the work bench). Place receptacle below the pressure port to
collect hydraulic fluid.
2. Drain the system by slowly winding in the screw-press (3) and then depressing the priming
pump (2) plunger to expel any fluid remaining in the instrument.
3. If necessary, apply an air line to the priming port to clear any remaining fluid out of the
instrument.
9.7 Flushing - Refilling or Changing the Hydraulic Fluid
If necessary, to remove any contaminants, flush out the hydraulic system as follows: