Kyoritsu Electrical Instruments Works KEW 4506, Instruction Manual

Page: 35 / 44

̶ 33 ̶
● Voltage warning
If voltage of 253 V or higher is applied
between two terminals, KEW 4506 gives
audible warning with blinking
#
symbol
and “V[L-N]” as shown in Fig. 6-27. Even
while the tester is giving voltage warning,
the tester can perform tests if voltages
are less than 290 V.
Fig. 6-27
The tester doesn’t start a test even if the test button is
pressed when 290 V or higher voltage is applied between two
terminals.
7. Settings
7-1 Disabling resistance measurement of earth wire (E) and
neutral wire (N): 3P outlet
Disabling N-E resistance measurement and using test voltage
signal only is recommended if the test site is applied to the
conditions mentioned in cautions on page 11 and 12 in this manual.
Current flows by applying test voltage signal between N-E is less
than 1 µA.
Note
● Use of signal source (KEW 8343) is required to conduct a test
when N-E resistance measurement is disabled.
● Settings won’t be cleared by powering off KEW 4506.
Holding down 3 sec. switches resistance
measurement ON/ OFF.
While resistance measurement is OFF (disabled),
“ ” symbol doesn’t appear and resistance
value isn’t displayed as shown in Fig. 7-1.
Fig. 7-1
Blink
Blink