alligator clip of the test leads connected. The indicator should read
00.0Ω. When the leads are not connected the display will read
infinity indicated by “OL”. This will ensure that test lead are under
working condition.
2-4 Rotary Switch positions
Turn the Tester on by selecting any measurement
Lift ＜1000v,500v,250v,125v (4000MΩ)
OFF 400Ω/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 will be hold in the primary display., but it will return
in the 2nd pressing ; pressing 2 seconds ,it will enter directly into the
“MAX”status, and one another instant-pressing will switch to the
“MIN”, if instant-pressing once more, it will 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 will occur the
high-voltage and enter the insulation resistance testing status. Press
the “TEST”button once more ,it will shutoff the high-voltage and exit
from the insulation resistance testing status.
TEST : In the insulation resistance testing function ,pressing and
holding the “TEST”button, The meter will bring high-voltage, and
enter into the insulation resistance testing, being free from the
“TEST”, it will 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 will be set
zero,(mainly used for 400Ω, the low resistance testing), ,it will return
