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VACUUM HOLD TEST
Current Vacuum
Level
Leak test
duration
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 MD100W, close the vacuum valve
b. On the MD50W, close the High and Low side valves.
C) Press [SET] to start test. Starting test vacuum level is indicated in upper left
display [FIG.15]. 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.
Desired Test
Level
Timer counts
backwards
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.
PROGRAMMING/SETTING UNITS
According to your geographic location, MD50W and MD100W manifold series are fac-
tory programmed with 5 common refrigerants in those regions (see chart below), and
units of measure (Temperature, Pressure and Vacuum) for specific regions.
Any of these units can be changed via the Program Mode.
next page for details.
www.
FIG.14
Psig
hh : mm
Vacuum Display Screen
FIG.15
Vacuum Display Screen
.com
Inactive
Current System
Vacuum Level
See chart on
19
information@itm.com
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