TOS93 Series User’s Manual 239
Maintenance
Inspection
Pre-inspection for withstanding voltage test and insulation resistance test
Applicable models for AC withstanding voltage (ACW): All models
Applicable models for DC withstanding voltage (DCW): , ,
Applicable models for insulation resistance (IR): , , ,
Perform ACW, DCW, and IR tests by shorting the test leads, and determine the inspection results from
those results. The test leads are consumable parts. Check them periodically for tears and breaks in the
insulation.
1
Connect the low-voltage test lead (black) and high-voltage test lead (red) to the
product (p.28).
2
Short the low-voltage test lead (black) and high-voltage test lead (red).
3
Set the test conditions.
For a withstanding voltage test, be sure to set the Upper limit (p.55). For an insulation resistance
test, be sure to set the Lower limit (p.56).
4
Press START.
The test starts.
5
Check the judgment result.
If the product needs to be repaired, contact your Kikusui agent or distributor.
This completes the inspection.
9303
9301
9303LC
Breaks or tears in the test leads may cause electric shock or fire. If a break or tear is
found, stop using the test leads immediately.
Test type Judgment Inspection result
Withstanding voltage
(ACW, DCW) test
U-FAIL Normal.
U-FAIL is not indicated. The test leads may be broken. If there are
no breaks in the test leads, the product
needs to be repaired.
Insulation resistance (IR)
test
L-FAIL Normal.
L-FAIL is not indicated. The test leads may be broken. If there are
no breaks in the test leads, the product
needs to be repaired.