Seaward A252 - Manual (Page 11)

A252 Portable Appliance Tester INSTRUMENT DESCRIPTION
C ONTROLS AND I NDICATORS
The following section acts as a guide to the instrument and to provide familiarisation with each of the
controls and associated functions.
Supply Input the permanently attached mains lead is fitted with a 13A (BS1363A) plug for connection to a
240V a.c. Earthed supply. The plug top fuse should be rated at 3Amps. The lead is stored in the rear
compartment.
Supply Lamps these two lamps, 1 amber and 1 red, are used to indicate the condition of the Incoming
supply. It is important that the external supply circuit is correctly wired and provides a sound earth
connection for this instrument.
The amber lamp must be ON whenever the instrument is connected to a live mains supply. If the amber
lamp fails to glow AND / OR the red FAULT lamp is ON there is likely to be a connection fault on the supply
socket - such as reversed polarity of Line and Neutral or no Earth connection at the supply socket.
Disconnect the instrument immediately and have the supply fault investigated and corrected, by qualified
personnel, before re-using the suspect socket for either this instrument or any other tool or appliance.
NOTE
If neither lamp glows, check that the supply is ON - if it is ON check the wiring of the A252 plugtop and fuse.
Failing this, the fault is within the instrument. It must be withdrawn and thoroughly investigated and
corrected, by qualified personnel, before carrying out any appliance testing.
D0010024.DOC (01/01/94) Page 11 INSTRUCTION MANUAL