Chauvin Arnoux C.A 6456 Notice De Fonctionnement page 52

The measuring cable compensation mode is selected in the "SET-UP" mode:
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R ∆ ∆ ∆ ∆ ∆ O
R ∆ ∆ ∆ ∆ ∆ E 8.88 Ω Ω Ω Ω Ω
Std
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"USEr" cable compensation:
=> 3 possible types of compensation :
Compensation
Resistance of the cable in series with R
(3P measurement)
Sum of the resistances of the 2 measuring cables
(2P measurement)
Resistance of each of the 3 measuring cables
(Zloop measurement)
=> Set the switch to the 3P, 2P, or ZLOOP position,
=> Connect cables to the 3 terminals (L, N and PE) of the instrument and short-circuit them at the other
end,
=> Perform a long press on the TEST key; the measurement starts when the key is released and lasts
approximately 30 seconds,
=> Perform another long press on the TEST key to return to voltage measurement.
Possible error messages:
Display - Indication
Hz
U > 2V
xy
> 5Ω Ω Ω Ω Ω
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successive presses to select the type of cable compensation for 3P,
2P, and loop measurements: USEr, Std, nOnE
Select the type of measuring cables compensation and
display the compensation of each measuring cable by
successive presses on the
Cables connected to the 3 terminals (L, N, and
E
PE) of the instrument and short-circuited at the
other end
Cables connected
terminals L and PE of the instrument
Cables connected to the 3 terminals (L, N, and
PE) of the instrument and short-circuited at the
other end
Remark - Possible cause
The instrument detects a voltage > 2V between terminals L,N
and/or PE : the compensation is not taken into account. A long
press on the TEST key causes a return to voltage measurement.
The measurement is > 5Ω: the compensation is not taken into
account. A long press on the TEST key causes a return to voltage
measurement.
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key.
Connection
in series connected to