2. With the Power switch in the OFF
position, charge the internal battery
using the furnished wall adapter.
Charge time is 8–10 hours or, until
the red Full Charge LED turns green.
Note:
Unit will not operate from AC power
using the furnished battery charger wall
adapter. For continuous operation on
120VAC, 220/230VAC or 240VAC, use factory
available or equivalent, optional wall adapter
with a 1.7 amp/13.5 VDC output.
Adjusting the Sensitivity
Set the Leak Size switch as follows:
SMALL switch position is the high-
est sensitivity. The unit will indicate
0.1 ounce or greater leak rates and
is used for fluorine based gases like
R134a and SF6. This position also
assures highest repeatability for locating
0.5 ounce or greater R134a leaks (per
SAE Std. J1627 moving probe test con-
ditions). It must always be used to verify
performance and calibration when using
the Calibration Reference Bottle.
MEDIUM switch position is used for
chlorine and chlorine based gases like
R12, R22, R123, etc. and will indicate
a 0.1 ounce per year or greater leak
rate. This position supports finding a
0.5 ounce or greater leak during the
moving probe test as defined in SAE
J1627. It is also useful for locating larger
R134a leaks of one ounce or greater.
LARGE switch position is used to zero
in on large leaks of any refrigerant. If
a large leak is suspected, switch unit
to its Manual mode. Adjust the Manual
Balance control for 2-3 ticks per second
and slowly approach the test equip-
ment/area. Adjust the Manual Balance
control counterclockwise as necessary
to maintain 2-3 ticks per second. As you
