Chauvin Arnoux C.A. 773 User manual

Voltage detector
Spänningsprovare
Jännitteenkoetin
C.A 773
C.A 773 IP2X
GB- User’s manual
SE - Bruksanvisning
FI - Käyttöohje

2
WARNING, risk of DANGER! The operator must refer to these instruc-
tions 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.
Denition 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 xed industrial devices.
Measurement category II corresponds to measurements taken on circuits directly
connected to low-voltage installations.
Example: power supply to domestic electrical appliances and portable tools.
CONTENTS
1. Delivery condition ........................................................................................... 4
2. Introduction...................................................................................................... 6
3. Use.................................................................................................................... 9
4. Characteristics............................................................................................... 17
5. Maintenance................................................................................................... 20
6. Warranty ........................................................................................................ 21
Thank you for purchasing a C.A 773 or C.A 773 IP2X voltage detector.
For best results from your instrument:
read these operating instructions carefully,
comply with the precautions for use.
Svenska ......................................................................... 22
Suomeksi ...................................................................... 42

3
PRECAUTIONS FOR USE
This device is protected against voltages up to 1000V with respect to earth in meas-
urement category IV.
The protection provided by the device may be compromised if it is used other than as
specied 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 ngers 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 reassembled, or its acces-
sories if they seem to be damaged.
The device must be kept clean so that the condition of the cable insulators, hous-
ing, and accessories can be checked. Any component whose insulator is damaged
(even partially) must be sent for repair or scrapped.
The device is designed to be used by qualied 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.
SAFETY ADVICES
Depending on the internal impedance of the voltage detector there will be a different
capability of indicating the presence or absence of operating voltage in case of the
presence of interference voltage.
A voltage detector of relatively low internal impedance, compared to the reference
value of 100 kΩ, will not indicate all interference voltages having an original voltage
value above the ELV level. When in contact with the parts to be tested, the voltage
detector may discharge temporarily the interference voltage to a level below the
ELV, but it will be back to the original value when the voltage detector is removed.
When the indication “voltage present” does not appear, it is highly recommended
installing earthing equipment before work.
A voltage detector of relatively high internal impedance, compared to the reference
value of 100 kΩ, may not permit to clearly indicate the absence of operating voltage
in case of presence of interference voltage.
When the indication “voltage present” appears on a part that is expected to be
disconnected of the installation, it is highly recommended conrming by another
means (e.g. use of an adequate voltage detector, visual check of the disconnect-
ing point of the electric circuit, etc.) that there is no operating voltage on the part
to be tested and to conclude that the voltage indicated by the voltage detector is
an interference voltage.
A voltage detector declaring two values of internal impedance has passed a perfor-
mance test of managing interference voltages and is (within technical limits) able to
distinguish operating voltage from interference voltage and has a means to directly
or indirectly indicate which type of voltage is present.

4
CAT IV CAT IV
1. DELIVERY CONDITION
Voltage detector C.A 773
Delivered with:
one red test probe Ø 2 mm,
one black test probe Ø 2 mm,
one protective cap for the test probes,
one Velcro fastener,
two alkaline batteries (AA or LR6)
one user’s manual in ve languages,
a test certicate.
Voltage detector C.A 773 IP2X
Delivered with:
one red IP2X test probe Ø 4 mm,
one black IP2X test probe Ø 4 mm,
one Velcro fastener,
two alkaline batteries (AA or LR6)
one user’s manual in ve languages,
a test certicate.
1.1. ACCESSORIES AND SPARE PARTS
Test probes Ø 2 x 4 mm (one red and one black)
Test probes Ø 2 x 15 mm (one red and one black)
Test probes Ø 4 x 15 mm (one red and one black)

5
Red IP2X test probe Ø 2 mm (one red and one black)
Red IP2X test probe Ø 4 mm (one red and one black)
Cap
1.2. OPTIONS
Carrying case
For accessories and spare parts, visit our website:
www.chauvin-arnoux.com

6
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
C.A 773
DC
L1
AUTO
TEST
30mA
30mA
L3
L1
L2
Ω
V
k Ω
DC
AC
2. INTRODUCTION
2.1. C.A 773
Red test
probe.
Black test
probe L1.
Cap.
Function
buttons.
Polarity
indicator.
Backlit digi-
tal display.
Bargraph.
Phase indicator.
Hazardous volt-
age indicator.
Lighting of
measure-
ment point.

7
2.2. ON THE BACK
There are two ways to attach the black test probe to the back:
at, with a 16 mm distance between test probes,
on the side, with a 19 mm distance between test probes.
Red test probe
(underneath).
Black test probe.
Battery compart-
ment cover.
16 mm 19 mm
Guards.

8
2.3. TEST PROBES
The tips of the test probes are removable.
2.4. C.A 773 IP2X
See § 3.8.
2.5. FUNCTIONALITY
The C.A 773 is a voltage detector with indicator lights.
It complies with the recommendations of the IEC 61243-3 standard.
The main function of the C.A 773 is Voltage Absence Testing (VAT). It detects haz-
ardous voltages, i.e. higher than ELV (extra-low voltage) 50 Vac or 120 Vdc), even
if the device’s batteries are spent or absent.
Its other functions are:
Indicating a voltage between 12 and 1000 Vac or 1400 Vdc with polarity indication.
Indicating the quality of the continuity level.
Indicating the phase position.
Indicating the phase order.
Load switching (controlling the triggering of the 30 mA differential circuit breakers).
The voltages indicated on the C.A 773 are nominal voltages. Ensure that it is used
on voltage-normalized networks.
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
C.A 773
DC
L1
AUTO
TEST
30mA
30mA
L3
L1
L2

9
3. USE
This device is a detector. The indications it provides must not be used for measure-
ment purposes.
3.1. SELF-TEST
Before using the C.A 773, run a self-test. This checks the integrity of the cable and
the test probes, correct operation of the electronic circuit, and a sufcient voltage
level for the batteries.
Connect the red test probe to the +terminal and the black test probe to the L1 terminal.
Bring the two test probes into contact and press the AUTO TEST button. Hold it
down as long as necessary.
If all indicators on the device except ELV light up, the buzzer sounds and the digital
display indicates “ready”, the device is operating properly and is usable.
+
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
If every second indicator lights up along with the symbol, the batteries must be
replaced (see § 5.2).
+
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
L1
AUTO
TEST
30mA
30mA
L3
L1
L2
Ω


10
If every third indicator lights up and the display indicates “bad”, there is a problem
with the test probes. Check that they are connected correctly and are in contact, and
then press the AUTO TEST button again. If the problem persists, the test probes
must be replaced. If the problem still persists, the device must no longer be used.
If no indicators light up, replace the batteries (see § 5.2). If the problem persists with
new batteries, the device is defective and must be sent for repair.
Repeat the self-test after each measurement to conrm that the device is operating
properly.
In a noisy atmosphere, ensure that you are able to hear the buzzer.
Note: If the AUTO TEST button is held down for more than 10 seconds with the test
probes not in contact, the device goes into stand-by mode.
3.2. LIGHTING OF MEASUREMENT POINT
The C.A 773 can light up the measurement point, with a white indicator light located
under the red test probe.
To switch this light on, press the
Ω
button.
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
AUTO
TEST
30mA
L3
L1
L2
Ω

+
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
To switch the light off, press the
Ω
button again, or wait for it to extinguish itself
automatically after about 10 seconds.

11
Hand position limit.
Place the test probes on the element to be tested, and hold them rmly in contact.
There is no need to switch on the C.A 773; it starts up automatically. The voltage is
displayed on the bargraph and on the digital display unit.
If the voltage present is:
AC: the indicators light up to indicate its value, and the +(green) and -(orange)
indicators are lit.
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
L1
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
V
AC
DC: the indicators light up to indicate its value, and the +(green) indicator or the -
(orange) indicator lights up to indicate the polarity.
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
V
DC
hazardous (> 50 Vac or 120 Vdc): the ELV (red) indicator ashes (the faster the
ashing, the higher the voltage), and the device beeps.
ELV: Extra Low Voltage. This redundant indicator light indicates that the voltage is
above ELV.
3.3. VOLTAGE DETECTION
Connect the red test probe to the +terminal and the black test probe to the L1 terminal.
Place your hands behind the guards on the device and the test probe.

12
The rst two indicators on the bargraph are green to indicate that the voltage is
not hazardous, and the device does not beep. The next ones are red, and the
device beeps.
If the voltage exceeds 1000 Vac or 1400 Vdc, the digital display indicates “overload”.
The bargraph and the audible signal remain active.
3.4. INDICATING THE QUALITY OF THE CONTINUITY LEVEL.
As for voltage detection, connect the red test probe to the +terminal and the black
test probe to the L1 terminal.
Place your hands behind the guards on the device and the test probe.
Place the test probes on the element to be tested, and hold them rmly in contact.
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
L1
Ω
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω
R
If only the ELV indicator lights up, the batteries are spent or absent.
If the device has been idle for more than 10 minutes or if it was set to stand-by mode,
run a self-test rst, to place it in active stand-by.
Keep the
Ω
button pressed.
If no voltage is detected, the C.A 773 performs a continuity check.
The result is indicated only on the digital display.
If it is less than 125 W, the device emits a continuous audible signal.

13
3.5. PHASE DETECTION
The C.A 773 performs single-pole phase detection.. This means that you can connect
just one test probe to nd out if a phase is present.
Warning: Phase detection cannot replace an absence of voltage test.
To operate properly, phase detection must be used on earth-referenced networks.
This means, for example, that you can locate the phase on a connector for an earth-
referenced network.
Connect the black test probe to terminal L1.
Place your hands behind the guard on the device.
Place the test probe on the element to be tested, and hold it rmly in contact.
If the test probe is on the phase, the Ph (phase) indicator ashes and the device
beeps.
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
+
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
Note: The fact that the Ph indicator is not ashing does not mean that there is not
a hazardous voltage on the connector.
3.6. ORDER OF PHASES
Place the black test probe on the rst phase of the three-phase system and the red
test probe on the second phase. The device indicates the voltage that is present.
Press the button.

14
When the reference has been acquired, the C.A 773 emits two treble beeps and
“reference” is displayed steadily.
Then shift the red probe tip to the last phase of the system.
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 771
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
L1
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω
L3
PE
N
L1
L2 
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
L1
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω
L3
PE
N
L1
L2
If the voltage is less than 50 Vac or DC, it cannot be measured.
Otherwise, the device reports that it is taking the voltage reference by the blinking
of “reference” on the display unit.
The device displays “measurement” to indicate that it is making the measurement.
If there is a problem, i.e. if the device does not detect a phase change within 10
seconds or if the phases are not balanced, it indicates an error by emitting two low-
pitched beeps and displaying “error”.
Otherwise, the device indicates the phase order by lighting up:
L123 and emitting a low-pitched beep followed by a treble beep,
or L132 and emitting a treble beep followed by a low-pitched beep

15
3.7. LOAD SWITCHING
During voltage detection, if there is an interference voltage near the element being
tested, the device may indicate the presence of an operating voltage when in fact
there is none.
If this voltage is < 400 V, press the two buttons
30mA
to distinguish an interference
voltage from an operating voltage. If it is an interference voltage, the voltage indica-
tion disappears while the buttons are being pressed.
On systems equipped with 30 mA differential circuit breakers, they can be triggered
by pressing these two buttons.
Place the +test probe on the phase, and the black test probe on the protection con-
ductor, where these two conductors belong to the circuit protected by the differential
circuit breaker to be tested.
A voltage indication appears on the bargraph and on the digital display.
Press the two
30mA
buttons together (the one on the device and the one on the test
probe).
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
C.A 773
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
DC
L1
AUTO
TEST
30mA
L3
L1
L2
30mA
Ω


L
N
PE
30 mA
If the voltage measured is between 8 Vrms and 400 Vrms, the test is triggered.
If the voltage is 230 Vrms, the 30 mA differential circuit breaker is triggered and the
voltage disappears from the bargraph and from the digital display.
This test generates a high current that heats the device. When it is too hot, you must
wait for it to cool before resuming the use of this function.
3.8. IP2X TEST PROBES
IP2X test probe leads are delivered with the device (C.A 773 IP2X) or as an option
(C.A 773) according to the model ordered.
The use of IP2X accessories is an additional safety feature. These accessories may
be mandatory in certain countries.
In France, their use is imposed by standards (NF C 18-510, UTE C 18-510) and
government decrees.
Connect the red IP2X test probe to the +terminal and the black IP2X test probe to
the L1 terminal.

16
IP2X Test
Probes
SAFETY TESTER
1
0
0
0
V
C
A
T
.
I
V
ELV
Ph
AC
DC
V
400
230
127
50
690
1000
1400
12
24
+
C.A 773
DC
L1
50
12
24
AUTO
TEST
30mA
30mA
L3
L1
L2
Ω
To perform a test, place the test probe on the object
to be tested and press to slide the protective cover.

17
4. CHARACTERISTICS
4.1. REFERENCE CONDITIONS
Inuence quantity Reference values
Temperature 23 ± 5°C
Relative humidity 30 to 75% RH
Power supply voltage 3 ± 0.1 V
Frequency of the measured signal DC or 45 to 65 Hz
Type of signal sinusoidal
External electrical eld < 1 V/m
External DC magnetic eld < 40 A/m
4.2. ELECTRICAL CHARACTERISTICS
4.2.1. VOLTAGE
Nominal voltages: 12, 24, 50, 127, 230, 400, 690, 1000 Vac/ Vdc and 1400 Vdc.
Intrinsic uncertainty: ± (3% + 5 ct)
Resolution: 0,1 V from 1 to 299,9 V
1 V from de 300 V
Operating frequency: DC and 16.67 to 800 Hz
Maximum input current: 3.5 mArms.
Internal impedance at 50 Vac:1100 kW. / 6,5 kW if load switching.
Response time < 500 ms.
Response time of ELV indicator < 1 s.
The indicator corresponding to voltage V lights up before the voltage reaches 85%V.
If the voltage present is < 12 V, no indicator is lit.
If the voltage present is < 1 V, the digital display is off.
The C.A 773 must be used on voltage-normalized networks only.
Operating cycle: 30 s (maximum time that the device can be connected to a live
element) - 240 s (minimum rest time during which the detector must not be con-
nected to a live element).
4.2.2. CONTINUITY
Continuity detection is inhibited if a voltage > 1 V is present.
Measurement range: 0 to 3 kW
Intrinsic uncertainty: ± (3% + 5 ct)
Resolution: 0,1 Wfrom 1 to 299,9 W
0,001 kWfrom 0,3 to 3 kW
Audible signal triggering threshold: 100 W-0% +50%
Test current ≤1 mA
Open circuit voltage ≤5 V
4.2.3. PHASE IDENTIFICATION
15 Hz < frequency < 65 Hz
50 Vac < voltage < 1000 Vac for 45 Hz < frequency ≤65 Hz
150 Vac < voltage < 1000 Vac for frequency < 45 Hz

18
4.2.4. ORDER OF PHASES
Phase between 45 and 400 Hz.
Voltage between 50 and 1000 Vac between phases.
Time for acquisition of information after contact ≤1 s.
Information retention time: 10 s.
Allowable unbalance amplitude: 20%.
Allowable voltage harmonics: 10%.
Rejection of EDF remote control frames (TCC-175 Hz-188 Hz).
4.2.5. LOAD SWITCHING
Switched load: approximately 6,5 kW at 50 Vac.
Peak current: 90 mA.
Current consumed at 230 Vac: 30 mA.
Triggering between 8 and 400 Vac.
Overload protection after 10 seconds at 230 V and 2 seconds at 400 V.
4.3. ENVIRONMENTAL CONDITIONS
This is a Type S device. It must be used under the following conditions:
100
90
80
70
60
50
40
30
20
10
0
-50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
°C
321
%RH
1: Reference range
2: Operating range
-15 à +45°C and 20 to 95% RH excluding condensation.
3: Storage range (without battery)
-40 to +70°C and 20 to 95% RH excluding condensation.
Before leaving the device idle for an extended period or before storage, remove the
batteries from the housing.
The device must be stored in a clean, dry location.
Use indoors or outdoors if not raining.
Degree of pollution: 2.
Altitude: < 2000 m.

19
4.4. POWER SUPPLY
The C.A 773 is powered by two 1.5 V alkaline batteries (type AA or LR6).
The battery life provides 2,500 ten-second measurements.
The batteries can be replaced with rechargeable accumulators, but these will not
last as long.
4.5. BUILD CHARACTERISTICS
Dimensions (L x W x D)
of the device 228 x 60 x 39 mm
of the test probe 218 x 35 x 25 mm
Mass 350 g approx.
Cable length 1 m
Protection rating
IP 65 according to IEC 60529
IK 06 - 1J - Eha pendulum hammer method according to IEC 50102
Drop test 2 meters.
4.6. COMPLIANCE WITH INTERNATIONAL STANDARDS
Two-pole voltage detector EN 61243-3 Ed. 3 dated 2015.
The device is in conformity with IEC-61010-1 1000V, CAT IV.
4.7. ELECTROMAGNETIC COMPATIBILITY
Emission and immunity in industrial environment according to IEC 61326-1.

20
5. MAINTENANCE
Except for the batteries, the instrument contains no parts that can be
replaced by personnel who have not been specially trained and accredited.
Any unauthorized repair or replacement of a part by an “equivalent” may
gravely impair safety.
5.1. CLEANING
The device must be kept perfectly clean.
Disconnect the instrument completely.
Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry
rapidly with a dry cloth or forced air. Do not use alcohol, solvents, or hydrocarbons.
5.2. REPLACEMENT OF BATTERIES
Any handling of the battery compartment cover must take place on a clean device
and in a clean environment.
If, during the self-test, the symbol is displayed, you must replace the batteries.
Disconnect anything connected to the device.
Using a screwdriver, unscrew the two captive screws of the battery compartment
cover located on the back of the device.
Withdraw the spent batteries and replace them with two new batteries (AA or LR6
1.5V alkaline batteries).
Close the battery compartment cover and make sure that it is completely and
correctly closed.
Screw the two screws back in.
Spent batteries must not be treated as ordinary household waste. Take
them to the appropriate recycling collection point.