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Vacuum/ Pressure Gauge Overview
The pressure gauge serves two basic functions:
1. Monitoring system test pressure, while performing a leak test in either TEST or SMOKE mode.
2. Measuring system pressure-decay (pressure loss) once system undergoing a leak test has been filled in
either TEST or SMOKE mode.
NOTE:
the pressure decay test is best performed immediately after the system undergoing a leak test has
been filled in either TEST or SMOKE setting, since the system has already built up pressure.
NOTE:
if performing a pressure decay test when smoke is not needed, then the test will be even more
accurate if performed using the control valve setting of TEST.
Test Procedure:
1. Be sure the
Leak
finder
® has completed filling the system being leak tested, with Control Valve in either
TEST setting or SMOKE (full flow) setting.
>
A filled system is confirmed when the flow meter ball stops descending and the pressure gauge stops
increasing in pressure.
2. If the
Leak
finder
® is still turned ON; turn it OFF (by pressing the button on the control panel) and
immediately observe the pressure gauge for any decay, which would indicate a leak in the system being
leak tested.
NOTE:
to perform a ‘vacuum’ test on a system; use a tee connection at the end of the
Leak
finder
® supply
hose and connect to a vacuum pump. When pumping the system to create vacuum, be very careful to
pump slowly and do not exceed the pressure limitations of the gauge on the
Leak
finder
®.
Do
NOT
run the vehicle’s engine with the
Leak
finder
® supply hose connected to
the vehicle. Normal engine vacuum will damage the pressure gauge!
Disconnect the
Leak
finder
® supply hose from the vehicle after performing an
EVAP test. Natural vacuum or pressure created by the fuel in the fuel tank can
damage the pressure gauge if it exceeds the pressure limitations of the gauge.
Содержание Leakfinder WV622N-VWKIT
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