Seaward A252 User Manual
Page 25
A252 Portable Appliance Tester TEST PROCEDURES
F
LASH
T
EST
- D
OUBLE
I
NSULATED
A
PPLIANCES
All tests must be carried out with the supply switch of the tool or appliance in the ON position to ensure that
all 'live' parts are included when checking insulation - refer also to the NOTES in the Test Requirement
section. The special safety Flash Test Probe is used for this test.
Ensure that the appliance is secured and positioned so as to allow access to the various test points - if it
becomes necessary to move the appliance for easier access to a test point, release both the probe and the
Test button first.
Select the 2500V, 3000V or 3750V test to suit the requirement - refer to the Safety Test Selector section
under Controls and Indicators.
Depress and hold the TEST button and apply the Flash Probe tip to all exposed metal surfaces, including
screw heads and rivets, and to casing joints - especially those around switches and cable entries.
Observe the TEST RESULT lamps, the green Flash PASS lamp should come on, and then remain on, to
indicate that no flash-over has occurred at those points to which the probe tip is applied.
F
AULT
I
NDICATION
If the fault warning buzzer sounds continuously and the red Flash FAIL lamp comes on, the insulation -
between the Line or Neutral paths and the point of test - has failed to withstand the applied voltage.
D0010024.DOC (01/01/94) Page 25 INSTRUCTION MANUAL