Chauvin Arnoux C.A 6115N, User Manual

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L
= the highest voltage in relation to the earth (PE) is on the right-hand pin of the mains plug
If using the measurement cable with 3 separate leads:
If "
L
" appears, this means that L
1
(red) presents the highest voltage in relation to the PE conductor
(white). If "
L
" appears, this means that L
2
(yellow) is connected to the highest voltage.
NOTE: To avoid indication errors , use original measurement cables only.
5.2 Checking the protective conductor PE (Earth)
When the user touches the conductive “TEST” button, the instrument checks whether a voltage > 50 V
is present on the protective conductor (PE) compared with the neutral earth, whether the protective
conductor is there or not or whether there is a break in it.
If no PE earth is detected by the instrument but you wish all the same to carry out a measurement that
does not use the earth, you must press the “TEST” button with an insulating tool: glove, pen…
5.2.1 Description of the function
An integrated network of high resistance values between L, N and PE enables the protective conductor
PE to be polarised. When making contact with the conductive “TEST” button, the operator establishes a
link with the potential of the protective earth connection via the resistance of his body. If the protective
conductor is live or is missing, a difference in potential is detected, evaluated by the processor and
reported by “PE”. An audible signal is triggered at the same time.
5.2.2 Technical specifications
Test: Protective conductor, to check for voltage presence or a break.
Voltage: > 50 V - 300 V AC 16-300 Hz
Measurement of the voltage difference between the contact electrode ( “TEST” button) and the PE line
Interruption: Automatic marking and locking of the measurement, at a network voltage of 90 – 440 V ; 16 – 65 Hz
Internal resistance: approx. 700 k
Ω
5.2.3 Making a measurement
1. Connect the C.A 6115N to the installation,
as illustrated opposite.
2. Select any position with the switch except
phase order determination.
When using the measurement cable with
3 separate leads, check that the PE (white
lead) is correctly connected.
3. Touch the “TEST” button (the user’s body
must not be insulated from earth: do not
wear insulating shoes, or use a plastic
object to make contact with the “TEST”
button, but rather touch an earthed element
such as a water pipe…)
The indications mean:
■
“PE” with U
L-N
= network voltage and U
L-PE
, U
N-PE
= approximately 50% network voltage.
The protective conductor PE (earth) is interrupted or connected to high ohmic
values!
■
“PE” with U
L-N
= 0 , and U
L-PE
, U
N-PE
= 100% network voltage.
The protective conductor PE (earth) is at network voltage!
WARNING! Risk of electrocution! Power down the installation, make it safe and eliminate
the faults.
L1
L2
L3
N
PE