HYYJ502A INSULATING OIL TESTER INSTRUCTION MANUAL V1.3.3
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7 TROUBLE SHOOTING
Trouble
Possible cause
Remedy
There is no voltage show
and no breakdown in test
vessel when test is started
The low voltage winding of
HV transformer circuit
had been damaged for
transportation or wrong
application
Open the box of tester.
Check whether there is
some
unit
had
been
damaged.
Check the resistance value
of green power resistance
30ohm/20W
Replace the damaged unit
with a new one
There is a sound alarm and
tester does not work when
test is started
1)
The insulation door
does
not
in
right
position
2)
The insulation door
position detect sensor
had been damaged
3)
The insulation door
position detect circuit
does not work
1)
Please be sure that the
insulation door in right
position
2)
Please replace the door
position detect sensor
with a new one
3)
Please
contact
with
tester
manufacturer
for help
There is no voltage show
when test is started. But
breakdown in test vessel is
ok.
1)
The
connection
in
measurement circuit
had
been
disconnected
for
transportation
2)
Some
ICs
in
measurement circuit
had been damaged
1)
Open the box of tester.
Check whether there
are
some
lines
in
disconnection.
2)
Check the ICs in main
board whether there
are some ICs had been
damaged. Replace the
bad ICs with a new one
The values of breakdown
voltage are very small.
While the voltage output
unit is ok when there is no
test
vessel
between
electrodes
The
contact
between
electrodes and test vessel is
not good
Please relocate the test
vessel between electrodes
The test value is not exact
The error of measurement
becomes more and more
for long time work
Please
contact
with
manufacturer to calibrate
the tester again.
Summary of Contents for WH-HYYJ502A
Page 1: ...Equipo para pruebas Dieléctricas en aceite WH HYYJ502A ...
Page 19: ......
