Seaward 220 PrimeTest - Manual (Page 23)

Operating Instructions
Primetest 220
16
8.4.9 An insulation resistance that fails will terminate the
lead test, a pass will automatically sequence to the
lead wiring test and the small digital display 3 will
indicate “LEAD”.
8.4.10 The wiring of the IEC lead is tested over a period of
2 seconds. The large digital display 2 indicates a
PASS/FAIL status for the lead. An additional visual
indication of a ✓ or ✗ also indicates PASS/FAIL
status.
The IEC lead wiring test checks for open circuit,
short circuit or crossed wires within the IEC
lead.
8.4.11 If this is the last IEC lead test or the only test then
the results will remain displayed until another rotary
switch or push button action.
8.5 Safety Test, Class II
See Figure 3
8.5.1 Select the Class II test function on the rotary
switch 10 . The LCD will display a probe symbol
to indicate that a safety test lead is required.
Ensure the IEC mains lead is disconnected from the
PrimeTest 220.
8.5.2 Plug the equipment under test (EUT) into the EUT
socket 11 on the front of the PrimeTest 220.
8.5.3 Plug the black insulation test lead into the black,
socket 12 on the PrimeTest 220.
8.5.4 Connect the other end of the black insulation test
lead to any exposed metal parts on the outer cover
of the EUT or near the mains input or mains switch
if there are no exposed metal parts.
8.5.5 To start a Class II safety test, press the button
9 .
PrimeTest 220 REV 1 5/12/05 1:52 pm Page 21