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Cirris 4200 Series User Manual
9. Low Voltage
A low voltage test checks for shorts, opens, and other basic errors.
The following settings control how the low voltage test is performed:
■ Connection Resistance: This setting determines if the
device passes or fails based resistance settingsi.e. connections with
resistances measured above this value will fail.
● Range: 0.1 ohm – 5.0 M ohm
● As shown in the graphic below, expected connections—con-
nections measured below or equal to the connection resis-
tance value—will pass while any measurement above this
value will fail. A resistance measured above the connection
resistance value, but below the LV insulation resistance value,
will be reported as a high resistance error. A measurement above the LV Insulation Resistance Value will be reported
as an open error.
Connection
Resistance
0.0 Ω
∞Ω
High Resistance
Good
Opens
LV Insulation
Resistance
■ LV Insulation Resistance: Intended connections above the LV insulation resistance value are considered open
during a low-voltage test (and ignored during a Learn).
● Range: 0.1 ohm – 5.0 M ohm
● As shown in the graphic below, during a shorts test (checking for unintended connections), resistance measure-
ments above the LV insulation resistance value will pass. Any connections detected below this value will be reported
as a short error.
Connection
Resistance
0.0 Ω
∞Ω
Shorts
Good
LV Insulation
Resistance
Edit Low Voltage Settings
Connection Resistance:
5 ohm
Measured connection resistance below this value passes
the low voltage test.
Measured insulation resistance above this value passes
the low voltage test.
LV Insulation Resistance:
100 k ohm
OK Cancel