Checkout
2001989-203C ApexPro™ Telemetry 8-17
Enclosure (chassis) leakage current test
Perform this test to measure current leakage through exposed conductive surfaces on
the device under test during normal operation.
1. Set the leakage tester switches as follows:
GND switch - OPEN
Polarity switch - NORM
2. Connect a meter lead between the CHAS connector on the rear of the leakage
tester and an unpainted, non-anodized chassis ground on the unit under test.
3. Set the leakage tester power switch to ON.
4. Read the current leakage indicated on DMM. If the reading is greater than 3.5
mA, the device under test fails and should be repaired and tested again.
5. Set the polarity switch to RVS and observe the same meter readings as in the
previous step.
6. Set the GND switch on the leakage tester to CLOSED.
7. Read the current leakage indicated on DMM. If the reading is greater than 3.5
mA, the device under test fails and should be repaired and tested again.
8. Set the polarity switch to RVS and observe the same meter readings as in the
previous step.
9. Set the polarity switch to NORMAL and observe the same meter readings as in
the previous step.
10. Set the leakage tester power switch to OFF and remove the meter lead connected
in step 2.
Power Cord
Leakage Tester
NORM
RVS
HIGH
LOW
GND
0.015µF
Power Cord
Device
Under
Test
DMM set to measure AC voltage
GND
DMM
10K
1K
To Next Page
Loading...
Need help?
General
