2 measurement procedure – KYORITSU 4300 User Manual

Page 18

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8-2 Measurement procedure

(1) Connect the test leads to the instrument.

Plug the L-shaped Banana plug of MODEL7248 into the E

terminal as illustrated below.

(2) Connection

Connect the instrument as illustrated below.

  

#

DANGER

● Always use a voltage detector for testing the earth side of the

commercial power supply.

● Do not use this instrument for testing the earth side of the

commercial power supply. It is dangerous because the LCD

may not show the measured voltage even the circuit under

test is in live if the earth of the electrode under test is loose/

disconnected or the connection of the test leads is not proper.

(3) Checking the earth voltage

Check the earth voltage displayed on the LCD without pressing

the Test button.

Fig. 8-2

Fig. 8-3 Measuring the earth resistance

of load

Fig. 8-4 Measuring the earth

resistance of wall socket

H+S(C+P)

E

Rx

re

POWER

LOAD

L

N

E

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