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Idiomas disponibles
Idiomas disponibles
Fuse
Ruptured
When briefly pressed and released, the instrument's single control button
switches the instrument 'O n'and selects C o n t i n u i t y mode. The Continuity test
automatically activates when the test leads make contact. Pressing and holding
the button selects I n s u l a t i o n m o d e .
Refer to Safety Warnings before using the instrument
Preliminary Test lead check
1.
Before each use of the instrument, visually inspect the test leads to
confirm that their condition is good, with no damaged or broken
insulation.
2.
Check continuity of the test leads by firmly shorting the leads together
and read the test lead resistance measurement directly from the
display.
Continuity Te s t i n g
1
Turn the instrument ' O n ' by briefly pressing and releasing the test button.
2
Firmly connect the test leads together and note their combined
resistance value.
3 .
Connect the test leads across the circuit under test.
4 .
Take
the
r a n g e . ( M a x . 9 9 , 9 Ω ) .
5 .
Subtract the test lead resistance value from the measured reading.
Insulation Te s t i n g
1 .
Turn the instrument ' O n ' by briefly pressing and releasing the test button
2 .
Firmly connect the test leads to the isolated item / circuit under test.
3 .
Press and hold the test button; the display changes to the M r a n g e
and shows the insulation value. As an additional safety feature the
BM122 display flashes its ' 1 0 0 0 V ' symbol before performing the test.
4 .
Release the test button beforeremoving the test leads (to enable the
instrument to discharge the circuit under test).
I N S U L ATION
Nominal Test Vo l t a g e :
Test Voltage Accuracy:
Measuring Range:
Short Cct. Current:
Accuracy (at 20°C):
CONTINUITY
Measuring Range:
Open Cct. Voltage:
DISPLAY FEATURES
OPERATION
reading
directly
SPECIFICATION
-0% +30% (0°C to 30°C) into 0 to 1mAload
0,01MΩ - 999MΩ
Less than 2mA
± 3% ±2 digits up to 10MΩ
± 5% ±2 digits up to 100MΩ
± 30% up to 999MΩ
0,01Ω - 99,9Ω
5V ±1V
from
the
B M 1 2 1
500V dc
Battery
1000V
displayed
Continuity
B M 1 2 2
1000V dc
Low
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