2
Making Measurements
Testing for Continuity
To avoid possible damage to your multimeter or to the equipment under
CAUTION
test, disconnect the circuit power and discharge all high-voltage capacitors
before testing for continuity.
Continuity is the presence of a complete path for current flow. The continuity test
features a beeper that sounds and a backlight that flashes as long as a circuit is
complete or broken. The audible and visual alert allows you to perform quick
continuity tests without having to watch the display.
In continuity, a short means a measured value is less that the threshold resistance
values listed in
Table 2-1
Threshold resistance values
Measuring range
30.000 Ω
300.00 Ω
3.0000 kΩ
30.000 kΩ
300.00 kΩ
3.0000 MΩ
30.000 MΩ
300.00 MΩ
You can set the beeper to sound and the backlight to flash as a continuity
indication whether the circuit-under-test is less than (short) or more than or equal
to (open) the threshold resistance.
74
Table
2-1.
Threshold resistance
<25 ± 10 Ω
<25 ±10 Ω
<250 ±100 Ω
<2.5 ± 1 kΩ
<25 ± 10 kΩ
<120 ± 60 kΩ
<120 ± 60 kΩ
<120 ± 60 kΩ
Keysight U1271A/U1272A User's Guide