Kyoritsu Electrical Instruments Works KEW 4506, Instruction Manual

Page: 32 / 44

̶ 30 ̶
Measured result remains displayed until test button or
button is pressed.
● Voltage warning
If voltage of 253 V or higher is applied to any of the three
terminals, KEW 4506 gives audible warning with blinking
#
symbol and “V[L-N]” as shown in Fig. 6-22. Even while the tester
is giving voltage warning, the tester can perform tests if voltages
are 290 V or less.
The tester doesn’t start a test even if the test button is
pressed when 290 V or higher voltage is applied to any of the
three terminals.
Blink
Blink
Fig. 6-22
6-2 2P outlet
(1) Test method
The tester conducts the following two measurements and judges
whether wall outlets are properly wired or not.
1) Voltage between L-N terminals
2) Potential differences between N terminal and touch pad (operator)
Judgement result L-N voltage Potential differences
(between N terminal and touch pad)
PASS ✓ X
FAIL: LN Reverse ✓ ✓
FAIL: <80V [L-N] X