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XW Warning
If both a pressure module and the internal
sensor are connected, the Calibrator displays
ONLY the pressure module measurement.
To use the Calibrator's internal pump, refer to Figure 3 and
perform the following steps:
1.
Depressurize and drain the line before connecting the
Calibrator.
2.
Connect the pressure transmitter to the Calibrator
internal sensor as shown in Figure 4 (for internal
pressure sensor measurements) or Figure 5 (for
pressure module measurements.)
To avoid leaks, use Teflon tape or similar sealant
on all pressure connections.
3.
Make sure the pressure/vacuum switch is in the
desired position. Forward (clockwise) is for pressure;
backward (counter-clockwise) is for vacuum.
4.
Turn the pressure/vacuum release control backward
(counter-clockwise) to vent pressure/vacuum from the
pump.
Z
5.
Press
to zero the pressure display.
Note
6.
Turn the fine adjustment knob to mid-range.
7.
Turn the pressure/vacuum release control forward
(clockwise) to close the release valve.
8.
Work the pump handle in and out to apply
incrementally larger pressure/vacuum changes.
Shorten the stroke to apply smaller increments of
pressure/vacuum change.
9.
To make very small pressure/vacuum changes, use
the fine adjustment knob.
This knob adjusts a small internal reservoir to
vary the total volume. With larger external
pressure/vacuum volumes, this control will adjust
pressure or vacuum within a smaller range.
10. Depressurize the system before disconnecting the
pressure line.
Pressure Calibrator
Calibrating a P/I Transmitter
Note
11
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