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Model UT511: OPERATING MANUAL
Press , to set through the polarization index,
TIME 2
insulation resistance reading and
TIME 2
insulation resistance reading.
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Information:
PI = 3 minutes ~10 minutes reading / 30 second ~1
minutes reading
PI
Standard
4 or more
The best
4~2
Good
2.0~1.0
Warning
1.0 or less
Bad
Press
COMP
button to select compare feature.
COMP
symbol displays on the LCD.
Press , and
STEP
buttons to set the compare
value. The minimum value is 1M The maximum
value is the maximum tested voltage allowable
measurement value.
Press and hold
TEST
button for 1 second to carry
out the measurement.
The
NG
symbol will display if the insulation resistance
value is smaller than resistance value. Otherwise
GOOD
symbol will be displayed.
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