7
alligator clip of the test leads connected. The indicator should read
00.0
Ω. When the leads are not connected the display w ill read
infinity indicated by “OL”. This w ill ensure that test lead are under
w orking condition.
2-4 Rotary Sw itch positions
Turn the Tester on by selecting any measurement
Lift
＜
1000v,500v,250v,125v (4000M
Ω)
OFF 400
Ω/BZ, 1000VDC,750VAC
＞
Right
2-5 Buttons and a display Indicators
a). Button
HOLD/MAX.MIN :
Instant-pressing the
“HOLD” button the 1st time,
the current values w ill be hold in the primary display., but it w ill return
in the 2nd pressing ; pressing 2 seconds ,it w ill enter directly into the
“MAX”status, and one another instant-pressing will switch to the
“MIN”, if instant-pressing once more, it w ill recycle ,but exit if
pressing 2 seconds again.
LOCK :
In the insulation resistance testing function ,press the
“LOCK” button ,and then push down the “ TEST” key, it w ill occur the
high-voltage and enter the insulation resistance testing status. Press
the
“TEST” button once more ,it w ill shutoff the high-voltage and exit
from the insulation resistance testing status.
TEST :
In the insulation resistance testing function ,press ing and
holding the
“TEST” button, The meter w ill bring high-voltage, and
enter into the insulation resistance testing, being free from the
“TEST” , it w ill cutoff the high-voltage and exit form the insulation
resistance testing.
ZERO/LIGHT :
Iinstant-pressing
the “ZERO/LIGHT” button in the 1st
time, the current values in the primary display w ill be set
zero,(mainly used for 400
Ω, the low resistance testing), ,it will return
