3-3
SAFETY PRECAUTIONS
The following check should be performed for the
continued
protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water
pipe, conduit, etc.) by connecting a leakage current
tester
between the earth ground and all exposed metal parts of
the
appliance (input/output terminals , screwheads,
metal
overlays, control shaft, etc.). Plug the AC line cord of
the
appliance directly into a 120V AC 60Hz outlet and turn
the
AC power switch on. Any current measured must not
exceed
o.5mA.
Device
under
test
Test
all
exposed
metal
surfaces
Also test
with
plug
reversed
(Using
AC adapter
plug
as
required)
Reading
should
not be
above
0.5mA
Earth
ground
AC Leakage Test
ANY MEASUREMENTS NOT WITHI N THE LIMITS
OUTLINED ABOV E ARE INDICATIV E OF A
POTENTIA L SHO C K HAZ ARD AND MUST B E
CORRECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
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