Tracer TP-9365 PRO-Vac AM08048 - Manual (Page 5)

is disabled when the vacuum level is below 30,000 microns.
However, you can turn the PRO-Vac off or on at any pressure.
Vacuum Units Selection
The PRO-Vac can display vacuum in units of microns, mbar, or
Pascal. To change units, press and hold the power button for
3 seconds during power-up and the indicator for the active unit
fl ashes. Briefl y press the power button to select the desired units.
Press and hold the power button for 1 second to save the setting.
Quick Calibration
The PRO-Vac has a quick calibration feature to allow for
equalization to different atmospheric pressures. Press CAL to
activate. CAL fl ashes on the display and the reading stabilizes
at 760 x 1000. The gauge will maintain this reference point until
a new one is set. NOTE: Quick calibration is disabled at vacuum
levels below 100,000 microns.
Changing the Filter
The PRO-Vac is equipped with a special fi lter to protect the
vacuum sensor from oil and other contaminants. To change the
fi lter, remove the setscrew in the unit’s fi tting. See Figure 1. Use
an 11/16” wrench to stabilize the top portion of the fi tting. Then
twist off the lower portion of the fi tting using a 1/2” wrench. Use
needlenose pliers or a similar item to gently pull out the used
fi lter. Do not attempt to clean or reuse fi lters. Insert a new fi lter
with the thicker portion of the O-ring facing away from the
gauge’s body. Reattach the refrigerant fl are. Tighten the fi tting
with the wrenches and replace the setscrew to ensure vacuum
integrity.
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