User`s manual

34
Component
Setting & Test
LV Insulation Resistance
(LV Insul Res)
The LV Insulation Resistance setting affects only the Low Voltage part of a cable test where
the basic cable pattern and gross insulation problems are identified. The LV Insulation
Resistance setting determines how high the insulation resistance must be between cable nets
to pass the Low Voltage part of the cable test. The tester displays SHORT for an unintended
resistance between nets that is less than the LV Insulation Resistance setting.
In addition, the LV Insulation Resistance setting determines at what resistance intended
connections are considered open as opposed to having high resistance.
Guidelines on LV Insulation Resistance
The factory default of 100KΩ should work well for most cable testing applications. You should
realize that as you raise the LV Insulation Resistance setting to a higher resistance, the tester
takes longer to perform the low voltage part of the cable test.
Selections Factory Default
10Ω-100KΩ, 500KΩ,
1MΩ, 5MΩ
100KΩ
Zero
Resistance
LV Insulation
Resistance
Setting
Infinite
Resistance
Connection
Resistance
Setting
Zero
Resistance
LV Insulation
Resistance
Setting
Infinite
Resistance
PASSES LV
SHORT
PASSES LV
SHORT
HIGH RESISTANCE
GOOD
OPEN