Indicator Fault
Open ground
Open neutral
Open hot
Hot/ground
Reverse
Hot/neutral
Reverse
Correct
Reason for Wiring Fault
Ground contact not connected
Neutral contact not connected
Hot contact not connected
Hot and ground contacts
reversed
Receptacle is wired correctly
Hot and neutral contacts
reversed
2. NCV Non-Contact Voltage Detection
A. Move the Switch on the MS5905R to the NCV position
for Non-Contact Voltage detection.
B. Using the tip of the receiver, move it toward the
conductor in question. If the receiver detects voltage,
the LED will flash and a buzzer will sound.
3. Socket/GFCI Tester
A. Socket Test
• Test on a known good socket before use.
• Plug the transmitter into an outlet, check indicator
lights and refer to the table to determine if the
socket is wired properly.
• If incorrect wiring is indicated, do not use socket.
03 04
B. GFCI
• Test on a known good circuit before use.
• Press the test button on the GFCI that you are testing.
If it does not trip, do not use the circuit and consult
and electrician. If it does trip, reset the GFCI.
• Plug the transmitter into GFCI outlet. Press the test
button on the top of the tester for at least 6 seconds.
The indicator lights should turn off and the GFCI
should trip.
• If the tester does not trip the GFCI, the GFCI is
inoperable; do not use GFCI.
Specifications:
• Working temperature:0~50°C (32~122°F)
• Relative humidity:<80%
• Dimensions: Receiver: 177×46×31mm
(6.97x1.81x1.22 in)
• Transmitter: 81×42×32mm (3.19×1.65x1.26 in)
• Weight: Receiver: 130g (4.59oz)
• Transmitter: 48g (1.69oz)
• Power Supply: 9Vbattery
00-05-3256
Symbols
“This product has been tested to the requirements
of CAN/CSA-C22.2 No.61010-1, second edition,
including Amendment 1, or a later version of the
same standardincorporating the same level of
testing requirements”.
CONFORMS TO UL STD.61010-1 CERTIFIED
TO CSA STD.C22.2 No.61010-1
DONGGUAN HUAYI MASTECH CO., LTD
Address: Yuliangwei Industrial Park, Qingxi Town,
Dongguan City, Guangdong Provincei
Tel: 0769-89101668
Fax:0769-89101600
