Instructions for use
Note: This tester is intended for use only on a 230V
mains 13A socket outlet. (BS 1363 configuration)
1 Plug the tester into a 13A socket outlet.
3 Read the socket outlet condition.
The tester will then check the condition of the wiring
and show the result in the three LED Loop Test bar.
Green LED with
continuous tone
indicates the
wiring condition is
good with safety
earth path less
than 1.80Ω.
Flashing amber
LED with warble
tone indicates
the incoming
mains should be
checked to see if the system is using an earth rod for
protection. Safety earth path is between 1.80Ω and
92Ω. If the system is protected by an earth rod then
an RCD should be present.
2 Switch on.
When first powered up the LEDs in the grey triangle
flash green then red once as it performs a self test.
This is immediately followed by a socket correct wiring
test. The LEDs will
show all green with
a continuous tone if
the wiring is correct.
Any other LED colour
or warble tone
indicates incorrect
wiring and all further
tests are inhibited.
Check the indication
displayed by the
LEDs against the table for an indication of the wiring
status.
After approximately 4 seconds the green LEDs turn off.
Additional functions
4 Polarity Check
The LEDs in the grey triangle flash green with a
continuous tone if it is correct.
If the LEDs flash red with a warble tone this is
potentially a very hazardous condition – immediate
attention required.
Flashing red LED with warbling means the earth path
is over 93Ω. This may not be dangerous but the
value should be checked using an earth loop tester
with a read out to check the value meets the wiring
regulations.
The tester is designed not to trip RCDs.
If the main distribution board is fitted with an RCD and it
trips during the test this could be:
a) there is already high leakage current between Line
(Live) and earth
b) the earth and neutral are reversed.
Either needs investigation by a qualified electrician.
5 RCD Check (30mA RCD)
Press the purple test switch for at least half a second to
start the RCD test.
If the LED goes out
and the tone stops
the RCD has tripped
and is working.
If the LED remains
illuminated and the
tone continues, the
test button has not
been pressed for
long enough to start the test. If the LED in the Loop Test
bar goes out and the three LEDs in the grey triangle
flash amber accompanied by a warble tone, the test
current has been applied for 300ms and the RCD has
not tripped. It should be investigated.
Wiring Indication Chart
LEDs show actual pin location Line, Earth, Neutral
Note: LEDs will also flash to indicate fault condition.
Kewtech Corporation Limited
T: 01494 792 212 F: 01494 791 826 E: sales@kewtechcorp.com
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