Cirris 4200 - Advanced Settings; Dielectric Withstand Test; Insulation Resistance Test

High Voltage (Hipot) - 4250 only
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10.3 Advanced Settings
10.3.1 Dielectric Withstand Test
In a Dielectric Withstand (DW) Test, a voltage much higher than
the normal operating voltage is applied between points on the
device-under-test. This ensures the wire insulation can withstand a
higher amount of voltage (such as a surge) without failing. This test
will also nd near shorts, such as those caused by surface contami-
nants on connectors or wires that are almost touching.
DW Voltage: The amount of voltage used for DW test.
● Range: 50 V – 15000 V
DW Max Current: The maximum current level allowed during DW test.
● Range: 0.10 m – 1.50 m A
DW Dwell Time: The amount of time voltage is applied.
● Range: 10 mS – 120 S
10.3.2 Insulation Resistance Test
An Insulation Resistance (IR) Test measures the overall electrical insulation resistance to ensure that it meets the speci-
ed value. For a cable to pass the IR test, the measured insulation resistance must be equal or greater than the insulation
resistance setting for the test.
IR Voltage: The amount of voltage used for an IR test.
● Range: 50 V – 1000 V
IR Minimum Resistance: Minimum resistance needed for insulation to pass the test.
● Range: 5.0 M – 1000 M ohm
IR Dwell Time: The amount of time the IR Resistance value must remain good to pass the test (this is how long the test will
run after soak time). The reported resistance value for the IR test is an average of the measurements taken over this time.
● Range: 2 mS – 120 S
Note: Because the reported value is an average, this setting can also be used to lter out noise caused by the AC power
coming into the tester. For the highest test accuracy, use an IR dwell of at least17 mS to lter out 60 Hz noise and 20 mS to
lter out 50 Hz noise.
IR (Max) Soak Time: The amount of time that the tester applies voltage before performing the nal IR measurement. The
test can be congured to soak for a period, or until the IR test passes. This setting is useful in humid environments or when
the cable insulation has problems with dielectric absorption.
● Range: 10 mS – 120 S
Note: When an IR Max Soak Time is set, the tester continues to monitor the dielectric withstand current. If the dielectric
withstand current is exceeded, the tester reports a “Dielectric Failure”.
Advanced Settings
OK Cancel
DW Voltage:
300 V
DW Max Current:
0.1 mA
DW Dwell Time:
100 mS
DW Mode:
DC
AC Frequency:
60 Hz
IR Voltage:
300 V
IR Minimum Resistance:
10 M ohm
IR Dwell Time:
2 mS
IR Soak Time:
0 S
Soak Until Good: OFF
Insulation Resistance (IR) TestDielectric Withstand (DW) Test
Cycles:
1 Cycle