Chauvin Arnoux C.A 6456 Manual De Instrucciones página 64

I
∆ ∆ ∆ ∆ ∆ n
The type of compensation of the measuring cables (see § 3.3)
I
the alarm threshold Z
I
the number of measurements to be counted to smooth the measurement (see § 3.2).
I
=> Set the switch to the REARTH position,
=> Activate the alarm by pressing the ALARM key,
=> Select the measuring current:
=> high ( ) for a greater accuracy:
- if there is no tripping of a earth fault breaker (measurement made upstream of the RCDs),
- if the earth fault breaker concerned is short-circuited for greater accuracy,
- in the case of a selective measurement using a current probe.
=> low ( ) for a quick check :
=> Make the connections as indicated below, according to the type of installation to be checked.
=> Compensate the measuring cables (see § 3.3),
Case of an installation with a TT type neutral situation :
=> Connect the mains socket (or the
3 separate cables) to the installation
to be tested,
=> Plant the auxiliary rod at a distance
> 25 m from the earth electrode.
PUSH
btn
x5
MORE
12 mA
MORE
twice to exit from programming
PUSH
btn
or R :
L L
64
Selecteion of current