Seaward A252 User Manual
Page 22
A252 Portable Appliance Tester TEST PROCEDURES
E
LECTRICAL
S
AFETY
V
ERIFICATION
All safety 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
Requirements section.
Connect the test instrument to an Earthed supply socket and switch ON, connect the appliance to be tested
into the appropriate 110V or 240V socket.
E
ARTH
C
ONTINUITY
M
EASUREMENT
- 25A
AND
8A
Select Earth Test on the instrument. Plug the yellow ‘Earth Return’ clip lead into the appropriate 25A or 8A
Earth Return socket on the instrument and attach the clip to clean exposed metal on the appliance. Good
connections are essential for accurate measurement and to prevent any high current sparks occurring
when the test is applied.
Depress the TEST button for 3 to 5 seconds and observe the resistance indicated on the appropriate meter
scale - 25A or 8A. If the resistance of the earth path is greatly in excess of the anticipated value, a broken
earth wire, loose connections or corroded terminals should be suspected.
D0010024.DOC (01/01/94) Page 22 INSTRUCTION MANUAL