Chauvin Arnoux C.A 6454 Notice De Fonctionnement page 61

→ Connect the mains socket (or the 3 separate cables) to the
installation to be tested,
→ Plant the auxiliary rod at a distance > 25m from the earth
electrode.
4.2.3 MEASUREMENT PROCEDURE
The instrument first checks the resistance of the rod and measures the voltage between PE and
earth, then measures the voltages U
If these values are correct, pressing the TEST key starts the measurement.
Remark: to be sure that the auxiliary rod is located in a zone not influence by other earth electrodes,
±
move the rod 10% of the distance and repeat the measurement. The result must not change. If it
does, move the rod until the earth measurement remains unchanged.
4.2.4 MEASUREMENT RESULTS
After the measurement, the measured values and complementary results can be consulted using
the and
MORE
(The quantities accessible before the measurement is made are described above, in § 4.1.4)
Parameters accessible in earth measurement in live condition,
Initial display
st
(1 press)
nd
(2 press)
rd
(3 press)
Pressing the or
Parameters accessible in earth measurement in live condition,
Initial display
st
(1 press)
nd
(2 press)
rd
(3 press)
, U
LN LPE
keys.
Initial display
(1
R
E
Z
E
R
E
Z
E
R
E
Z
E
R
E
Z
E
MORE
key once more causes a return to the initial display.
Initial display
R
E
- - - -
R
E
- - - -
R
E
- - - -
R
E
- - - -
, U .
NPE
MORE MORE
st nd
press) (2 press)
L H
E Z
Z U
E LN
L H
E Z
Z U
E LPE
L H
E Z
Z U
E NPE
L H
E Z
Z U
E P
MORE
st
(1 press)
Hz
U
LN
Hz
U
LPE
Hz
U
NPE
Hz
U
P
60
mode (high current):
MORE
rd
(3 press)
R
L ALARM
U
F
R
L ALARM
U
F
R
L ALARM
U
F
R
L ALARM
U
F
mode (low current):
MORE
nd
(2 press)
R
L ALARM
U
F
R
L ALARM
U
F
R
L ALARM
U
F
R
L ALARM
U
F
MORE
th
(4 press)
R
∆
L
U
L
R
∆
PE
U
L
R
∆
N
U
L
R
P
U
L
MORE
rd
(3 press)
R
∆
L
U
L
R
∆
PE
U
L
R
∆
N
U
L
R
P
U
L