1
2
150C5 LCD
All units that are returned for service or repair must pass the
original manufactures safety tests. Safety testing requires both
and
testing.
Hipot
Ground Continuity
HI-POT TEST INSTRUCTION
1
.Application requirements
Test method
1
.
1
All mains operated products must pass the Hi-Pot test as
described in this instruction.
1
.2 This test must be performed again after the covers have
been refitted following the repair, inspection or modification
of the product.
2.
1
Connecting conditions
2.
1
.
1
The test specified must be applied between the parallel-
blade plug of the mainscord and all accessible metal
parts of the product.
2.
1
.2 Before carrying out the test, reliable conductive
connections must be ensured and thereafter be
maintained throughout the test period.
2.
1
.3 The mains switch(es) must be in the
"
ON
"
position.
2.2 Test Requirements
All products should be HiPot and Ground Continuity tested as
follows:
Test
2820VDC
1
700VDC
Test current:
voltage
(2000VAC)
(
1
200VAC)
25A,AC
Test time:
Test time 3 seconds
1
second
3 seconds(min.)
(min.)
Resistance
required:
Trip
set at
1
00 uA
5 mA
<=
0.09+Rohm,
current
for Max.
R is the
(Tester)
limitation
;
set
resistance of
at 0.
1
uA for
the mains cord.
Min. Limitation
Ramp
set at 2
time
seconds
(Tester)
2.
Condition
HiPot Test for
HiPot Test for
Ground Continuity
products where
products where
Test requirement
the mains input
the mains input is
range is
F
ull
11
0V AC(USA
range(or 220V
type)
AC)
2.2.
1
The minimum test duration for Quality Control Inspector
must be
1
minute.
2.2.2 The test voltage must be maintained within the specified
v 5%.
2.2.3 There must be no breakdown during the test.
2.2.4 The grounding blade or pin of mains plug must be
conducted with accessible metal parts.
3.
Equipments and Connection
3.
1
. Equipments
F
or example :
- ChenHwa 9032 PROGRAMMABLE AUTO SA
F
ETY
TESTER
- ChenHwa 5
1
0B Digital Grounding Continuity Tester
- ChenHwa 90
1
(AC Hi-pot test), 902 (AC, DC Hi-pot test)
W
ithstanding Tester
3.2. Connection
4.
Recording
Hipot and Ground Continuity testing records have to be kept
for a period of
1
0 years.
* Turn on the power switch of monitor before Hipot and
Ground Continuity testing.
Connect the "video cable"
or "grounding screw"
to the CLIP on your tester.
Video cable
(Rear view of monitor)
Connect the power cord
to the monitor.
Grounding screw
Power outlet
(ChenHwa 9032 tester)
Clip
Clip
Safety Test Requirement
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Содержание HUDSON IV 150C5
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