11
VACUUM HOLD TEST
hh : mm
Psig
Vacuum Display Screen
B) Continue to Evacuate the system to the desired level which is indicated in the
upper left display once the desired vacuum level is reached:
a. On the MD100, close the vacuum valve
b. On the MD50, close the High and Low side valves.
C) Press [SET] to start test. Starting test vacuum level is indicated in upper left
display [FIG.18]. Current system vacuum level is shown in upper right of
display and timer is shown in lower left. The timer decrements and when zero, a
bells sounds and test ends. At end of test, Start vs. Final Vacuum levels will be
displayed to enable determination of any vacuum loss over a set period of time.
Inactive
Current Vacuum
Level
Leak test
duration
FIG.17
D) Press [CLR] to return to Main Screen [FIG.1].
NOTE: If it is required to rerun the vacuum pump after STEP 3, disconnect and reconnect the
MDXVG to reset it in the vacrometer mode.
Vacuum Display Screen
Current System
Vacuum Level
Desired Test
Level
Timer counts
backwards
FIG.18
PROGRAMMING/SETTING UNITS
According to your geographic location, MD50 and MD100 manifold series are factory
programmed with 5 common refrigerants in those regions (see chart below), and units
of measure (Temperature, Pressure and Vacuum) for specific regions.
See chart below for details.
Any of these units can be changed via the Program Mode.
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.com
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