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P5515, P5515-V, & P5515-EP
Users Manual
8
Note
During this operation, bubbles may appear in the reservoir, as trapped air
is expelled. For large volumes, repeat steps 3 &.4 until no further bubbles
appear.
5.
With valve open, turn capstan fully out and close valve. The tester is now ready for
use.
W
Warning
Turning the capstan out with the reservoir valve closed will
generate approximately 15 inHg / 0.5 bar vacuum. If the DUT is
vacuum sensitive, leave valve open during priming operation.
Operation
1.
Turn the screw press in (clockwise) to generate pressure.
Note
The priming pump is intended for system priming only, and cannot be used
to generate high pressures.
2.
Allow a few moments for the system to stabilize before taking any readings,
especially after large changes in system pressure.
Note
Large, sudden changes in pressure will cause the system temperature to
rise or fall, which can cause instrument readings to change as the fluid in
the system expands or contracts, thus increasing or decreasing the
pressure.
3.
Compare the reading of the gauge under test with that of the master gauge.
4.
For the next, higher calibration point, repeat from step 1 above.
5.
To measure reducing pressures, turn the screw press out (counter-clockwise).
6.
Depressurize the system by turning the screw press FULLY OUT, then open the
reservoir valve—
W
Caution
Never release the system pressure by using the reservoir valve
alone, as sudden depressurization will “shock” the system,
which may cause damage to sensitive instruments attached
to it.
Maintenance and Servicing
The figures on the following pages detail the components of each assembly, together with
the relevant part numbers. Where “SPEC” appears as a part number, this indicates that
this particular component varies with the specification of the comparison test pump, and
is usually associated with other components in an assembly for replacement purposes.
The part number for the seal kit for the P5515, P5515-V, and P5515-EP is P5515SK,
P5515SK-V, and P5515SK-EP, respectively
.
Top Plate Removal
1.
Depressurize the system, open the reservoir valve, and turn the screw press fully in.
2.
Disconnect any DUT from the test ports, and drain the fluid from the system; the
reservoir is fitted with a drain plug, which can be accessed from the underside of the
instrument, see Chapter 5, Reserve Assembly.
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