multicomp pro MP700110 Manual page 8

5. Simplified earth resistance measurement method :
(1) This method is recommended where an earth
resistance higher than 10
where it is not possible to drive auxiliary earth
spikes.
resistance can be obtained by the two wire
system where is shown in Fig. 2.
(2) Rotate
VOLTAGE" position and press to test. Make
certain that earth voltage is less than 10V.
(3) First rotate the function switch to "200
position and press to test, read earth
resistance. If the display shows "1"(MSD),
switch to "2000
resistance.
(4) The reading obtained (Rx) is an approximate
earth resistance value. There is no need for
external shorting as P and C terminals are
shorted by using the test leads specified for the
Simplified measurement.
An approximate
the function
" position and read earth
8
is measured or
value
switch to
of earth
"EARTH
"