Chauvin Arnoux 760N Manuel utilisateur
ENGLISH User's manual
C.A 760N
VOLTAGE DETECTOR
WARNING, risk of DANGER! The operator must
refer to these instructions whenever this danger
symbol appears.
Equipment protected by double insulation.
Equipment suitable for live work.
Battery.
Earth.
The CE marking indicates conformity with
European directives, in particular LVD and EMC.
The rubbish bin with a line through it indicates that,
in the European Union, the product must undergo
selective disposal in compliance with Directive
WEEE 2002/96/EC. This equipment must not be
treated as household waste.
Definition of measurement categories:
Measurement category IV corresponds to measurements
taken at the source of low-voltage installations.
Example: power feeders, counters and protection devices.
Measurement category III corresponds to measurements
on building installations.
Example: distribution panel, circuit-breakers, machines
or fixed industrial devices.
Measurement category II corresponds to measurements
taken on circuits directly connected to low-voltage instal-
lations.
Example: power supply to domestic electrical appliances
and portable tools.
Thank you for purchasing a C.A 760N voltage detector.
For best results from your instrument:
read these operating instructions carefully,
comply with the precautions for use.
PRECAUTIONS FOR USE
This device is protected against voltages up to 600V with
respect to earth in measurement category IV.
The protection provided by the device may be compromised
if it is used other than as specified by the manufacturer and
so endanger the user.
Do not exceed the maximum rated voltage and current and
the measurement category. Do not use your instrument
on networks of which the voltage or category exceeds
those stated.
Comply with the conditions of use, namely the temperature,
the humidity, the altitude, the degree of pollution, and the
place of use.
When handling the test probes, keep your fingers behind
the physical guard.
Use connection accessories of which the measurement
category and service voltage are at least equal to those
of the device.
Do not use the device if it is open, damaged, or poorly reas-
sembled, or its accessories if they seem to be damaged.
The device is designed to be used by qualified personnel
and in compliance with national safety rules.
We recommend wearing personal protective equipment
when the environment in which the device is used makes
it necessary.
All troubleshooting and metrological checks must be done
by competent, accredited personnel.
CONTENTS
1. Presentation...............................................................22
2. Use..............................................................................25
3. Characteristics ..........................................................31
4. Maintenance ..............................................................34
5. Warranty ....................................................................35
6. To order ......................................................................35
C.A 760N
SAFETY TESTER
AUTO
TEST
L3
L1
L2
+
COM
AC
DC
V
L1
CAT IV
600V
L1-L2-L3
L1-L3-L2
300k
Ω
60k
Ω
2k
Ω
Ω
400
230
127
50
690 AC
750 DC
12
24
+
-
ELV
Ph
1. PRESENTATION
1.1. C.A 760N
Red test probe. Black lead terminated
by a test probe.
Connection
terminals.
Bargraph.
Self-test
button.
Detachable strap.
Phase indica-
tor.
Hazardous
voltage indi-
cator.
Polarity indi-
cator.
Phase
order.
Phase
order
button.
1.2. ON THE BACK
When the device is not in use, the test probes can be stowed
on the back.
Red test probe.
Black test probe.
Battery compart-
ment cover.
Guards.
Removable protec-
tive caps.
1.3. FUNCTIONS
The C.A 760N is a Voltage Detector with indicator lights.
It complies with the requirements of standard IEC 61243-3.
The main function of the C.A 760N is to test for the absence of
any voltage. It detects hazardous voltages, meaning voltages
exceeding the ELV (extra low voltage: 50 Vac or 120 Vdc),
even if its batteries are low or missing.
Its other functions are:
Indication of a voltage between 12 and 690 Vac or 750 Vdc,
with indication of the polarity.
Continuity level quality indication.
Phase position indication.
Phase order indication.
The voltages indicated on the C.A 760N are nominal volt-
ages. Make sure that the device will be used on networks at
standardized voltages.
2. USE
This device is a detector. The indications it provides must
not be used for measurement purposes.
2.1. SELF-TEST
Before using the C.A 760N, perform a self-test. This checks
the integrity of the leads, the proper operation of the elec-
tronic circuit, and the battery voltage.
Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Touch the 2 test probes together and press the AUTO TEST
button. Press for as long as necessary.
If all of the indicators of the device except ELV light and
the audible signal sound, the device is working properly
and can be used.
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
COM
300k
Ω
60k
Ω
2k
Ω
Ω
If every other indicator lights, the batteries must be replaced
(see §4.2).
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
300k
Ω
60k
Ω
2k
Ω
COM
300k
Ω
60k
Ω
2k
Ω
Ω
26
Position beyond which your hands must not go.
If every third indicator is off, there is a problem with the
leads. Check that they are correctly connected and that
they are actually touching, then press the AUTO TEST
button again. If the problem persists, the lead and/or the
test probe must be replaced.
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
COM
300k
Ω
60k
Ω
2k
Ω
Ω
If no indicator lights, replace the batteries (see §4.2). If the
problem persists with new batteries, the device is defective
and must be sent in for repair (see §4.4).
After each check, perform a self-test in order to confirm the
proper operation of the device.
In a noisy environment, make sure that you can in fact hear
the audible signal emitted by the device.
Remark: If the AUTO TEST button is kept pressed for
more than 10 seconds when the test probes are
not touching each other, the device switches to
standby.
2.2. VOLTAGE DETECTION
Connect the red test probe to the + terminal and the black
lead to the COM terminal.
Keep your hands behind the guards of the device and of
the test probe.
Place the test probes on the element to be tested and main-
tain a firm contact.
There is no need to switch the C.A 760N on, because it starts
up automatically.
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
COM
300k
Ω
60k
Ω
2k
Ω
Ω
DC, the indicators light to indicate its value and the +in-
dicator (green) or the -indicator (orange) lights to indicate
the polarity.
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
COM
300k
Ω
60k
Ω
2k
Ω
Ω
hazardous (>50 Vac or 120 Vdc): the higher the voltage,
the faster the ELV indicator (red) flashes; the device also
emits audible beeps.
ELV: Extra Low Voltage. This redundant indicator indicates
that the voltage is greater than the ELV.
The first two indicators of the bargraph are green to
indicate that the voltage is not hazardous and the device
does not beep. The remaining indicators are red and the
device beeps.
If only the ELV indicator lights, the batteries are low or
missing.
If the voltage present is:
AC, the indicators light to indicate its value and the +(green)
and -(orange) indicators light.
+
AC
DC
V
CAT IV
600V
400
230
127
50
690 AC
750 DC
12
24
+
-
E LV
Ph
300k
Ω
COM
300k
Ω
60k
Ω
2k
Ω
Ω
If there is a voltage near the element being tested, the device
may indicate the presence of an operating voltage on the
element being tested.
2.3. CONTINUITY LEVEL INDICATION
Connect the red test probe to the +terminal and the black
lead to the COM terminal.
Keep your hands behind the guards of the device and of
the test probe.
Place the test probes on the element to be tested and main-
tain a firm contact.
R
If the device has been left unused for more than 30 minutes
or has been set to standby, first perform a SELF-TEST in
order to switch it to hot standby.
If no voltage is detected, the C.A 760N performs a continu-
ity test.
If the result is:
<100W:the first 5 indicators of the bargraph blink one after
another. The device emits a continuous audible signal.
Between 100Wand 2kW:the first 4 indicators of the
bargraph light.
Between 2kWand60kW:the first 3 indicators of the
bargraph light.
Between 60kWand 300kW:the first 2 indicators of the
bargraph light.
>300kW:the device displays nothing and does not emit
a sound.
2.4. PHASE DETECTION
The C.A 760N performs a unipolar phase detection. This
means that connecting a single test probe is enough to
determine whether a phase is present.
To operate correctly, the phase detection function must be
used on networks referred to earth.
It can be used, for example, to locate the phase on an outlet
of a network referred to earth.
Connect the red test probe to the + terminal
Keep your hands behind the guards of the device
Place the test probes on the element to be tested and main-
tain a firm contact.
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