Features – KYORITSU 4120A User Manual
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3. FEATURES
3.1 Instrument Layout
1............ LCD display
2............ Wiring check LEDs
3........... Test button
4............ Range switch
5............ Connector
LCD
Connector
Fig. 3
DANGER
● Use original test lead only.
● Max. allowed voltage between mains test terminals and ground is
300V.
● This instrument is intended only for use in single phase operation
at 230V +10% -15% AC phase to earth or for use in OLD-TT
system phase to neutral.
① ②
③
④
⑤
Wiring correct
（Green LED's）
Reversed L/N terminals
（Red LED）