Chauvin Arnoux C.A 6030 User manual

Loop and residual current device tester
GB - User’s manual
C.A 6030

2
WARNING, risk of DANGER! The operator must refer to these instructions whenever this danger symbol appears.
Equipment protected by double insulation.
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 electro-domestic devices and portable tools.
PRECAUTIONS FOR USE
This device is protected against voltages not exceeding 550 V with respect to earth in measurement category III. The protection
provided by the device may be compromised if it is used other than as specied by the manufacturer.
Observe the rated Maximum voltage and the measurement category.
Never exceed the protection limits indicated in the specications.
Observe the conditions of use: temperature, humidity, altitude, degree of pollution, and place of use.
Set the switch to OFF when the device is not in use.
Before opening the device, check that none of the terminals is connected and that the switch is set to OFF.
Do not place your device in water.
Do not use the device or its accessories if they seem damaged.
Use only the accessories supplied with the device, which comply with safety standards (IEC 61010-031).
Troubleshooting operations and metrological checks must be performed by approved skilled personnel.
Thank you for purchasing a C.A 6030 loop and RCD tester.
For best results from your instrument:
read these operating instructions carefully,
comply with the precautions for use.

3
CONTENTS
1. FIRST START-UP ..................................................................................................................................................................... 4
1.1. Unpacking....................................................................................................................................................................... 4
1.2. Accessories .................................................................................................................................................................... 4
1.3. Replacement parts ......................................................................................................................................................... 4
1.4. Inserting the batteries ..................................................................................................................................................... 5
2. PRESENTATION....................................................................................................................................................................... 6
2.1. Device............................................................................................................................................................................. 6
2.2. Functions of the device................................................................................................................................................... 7
2.3. Display unit ..................................................................................................................................................................... 7
2.4. Keypad and button ......................................................................................................................................................... 8
2.5. Switch ............................................................................................................................................................................11
3. SIMPLE USE.......................................................................................................................................................................... 12
3.1. Voltage measurement................................................................................................................................................... 12
3.2. Loop measurement....................................................................................................................................................... 14
3.3. Earth measurement on live circuit ................................................................................................................................ 16
3.4. Test of RCD .................................................................................................................................................................. 18
3.5. Direction of phase rotation............................................................................................................................................ 21
3.6. Current measurement................................................................................................................................................... 23
4. USE IN DETAIL....................................................................................................................................................................... 24
4.1. Before making any measurements............................................................................................................................... 24
4.2. Voltage measurement................................................................................................................................................... 24
4.3. Compensation of the leads........................................................................................................................................... 25
4.4. Loop measurement....................................................................................................................................................... 28
4.5. Earth measurement on live circuit ................................................................................................................................ 32
4.6. Test of residual current device...................................................................................................................................... 35
4.7. Direction of phase rotation............................................................................................................................................ 42
4.8. Current measurement................................................................................................................................................... 44
5. SET-UP................................................................................................................................................................................... 46
5.1. Access to SET-UP ....................................................................................................................................................... 46
5.2. Setting the date and time.............................................................................................................................................. 46
5.3. Type of power supply.................................................................................................................................................... 47
5.4. Audible signal ............................................................................................................................................................... 48
5.5. Viewing the internal parameters of the device.............................................................................................................. 48
5.6. Smoothing of the measurement (SMOOTH) ................................................................................................................ 48
5.7. Conguration of the measurements ............................................................................................................................. 49
5.8. Alarm thresholds........................................................................................................................................................... 50
5.9. Default conguration..................................................................................................................................................... 51
5.10. Communication rate for printing ................................................................................................................................. 51
6. STORAGE............................................................................................................................................................................... 52
6.1. Organization of the memory ......................................................................................................................................... 52
6.2. Storage ......................................................................................................................................................................... 52
6.3. Readout ........................................................................................................................................................................ 53
6.4. Erasure ......................................................................................................................................................................... 53
6.5. Errors............................................................................................................................................................................ 54
7. PRINTING ............................................................................................................................................................................... 55
8. DATA EXPORT SOFTWARE .................................................................................................................................................. 56
9. TECHNICAL CHARACTERISTICS ........................................................................................................................................ 57
9.1. Reference conditions.................................................................................................................................................... 57
9.2. Electrical characteristics ............................................................................................................................................... 57
9.3. Variations in the range of use ....................................................................................................................................... 61
9.4. Intrinsic uncertainty and operating uncertainty ............................................................................................................. 62
9.5. Power supply ................................................................................................................................................................ 62
9.6. Environmental conditions ............................................................................................................................................. 62
9.7. Mechanical characteristics .......................................................................................................................................... 63
9.8. Conformity to international standards........................................................................................................................... 63
9.9. Electromagnetic compatibility (EMC)............................................................................................................................ 63
10. DEFINITION OF SYMBOLS ................................................................................................................................................. 64
11. MAINTENANCE .................................................................................................................................................................... 65
11.1. Cleaning...................................................................................................................................................................... 65
11.2. Replacing the batteries ............................................................................................................................................... 65
11.3. Storage ....................................................................................................................................................................... 65
11.4. Resetting the device ................................................................................................................................................... 65
11.5. Updating of the internal software ................................................................................................................................ 66
12. WARRANTY ......................................................................................................................................................................... 67

4
1. FIRST START-UP
1.1. UNPACKING
➀A carrying bag for the device and its accessories.
➁One mains measuring cable.
➂One measuring cable, three safety leads.
➃Three alligator clips (red, yellow and white).
➄Three probe tips (red, yellow and white).
➅Transfer software and a communication cord (optical-RS232).
➆Five user manuals (one per language) on a CD.
➇Five safety sheets (one per language).
1.2. ACCESSORIES
MN20 current clamp
C172 current clamp
C176 current clamp
Serial printer
Loop kit (1 earthing rod + 1 coil of 30m of green cable)
Earth option (Loop kit + carrying bag)
1.3. REPLACEMENT PARTS
Optical communication cable
Set of 3 alligator clips (red, yellow, white)
Set of 3 probe tips (red, yellow, white)
Carrying bag (for the device + its accessories)
For accessories and spare parts, visit our website:
www.chauvin-arnoux.com
x 5
PRÉCAUTIONS D’EMPLOI
Cetappareil est protégé contredes tensions accidentelles n’excédant pas 600 V par rapport à la terreen
catégoriede mesure III ou 300 V par rapport à la terre en catégorie de mesure IV.La protection assurée
parl’appareil peut-être compromise si celui-ci est utilisé de façon non spécifiée par le constructeur.
Respectezla tension et l’intensité maximales assignées ainsi que la catégorie de mesure.
Nedépassez jamais les valeurs limites de protection indiquées dans les spécifications.
Respectezles conditions d’utilisation, àsavoir la température, l’humidité, l’altitude,le degré de pollution
etle lieu d’utilisation.
N’utilisezpas l’appareil ou ses accessoires s’ils paraissent endommagés.
Pour le recharge de la batterie, utilisez uniquement le bloc adaptateur secteur fourni avec
l’appareil.
Utilisezdes accessoires de branchement dont la catégorie de surtension et la tension de service
sontsupérieures ou égales à celles de l’appareil de mesure (600 V CAT III).
Touteprocédurede dépannage ou de vérification métrologique doit être effectuée par du personnel
compétentet agréé.
Utilisezles moyens de protection adaptés.








ATTENTION,risque de DANGER !
L’opérateurs’engage à consulter la présente notice à chaque fois que ce symbole de
dangerest rencontré.
Appareilprotégé par une isolation double.
Polaritédu connecteur d’alimentation en tension continue.
Lemarquage CE atteste la conformité aux directives européennes.
La poubelle barrée signifie que, dans l’Union Européenne, le produit doit faire l’objet
d’untri sélectif des déchets pour le recyclage des matériels électriques et électroniques
conformémentà la directive WEEE 2002/96/EC.
Définitiondes catégories de mesure :
Lacatégorie de mesure IV correspond aux mesurages réalisés à la source de l’installation basse
tension.
Lacatégorie de mesure III correspond aux mesurages réalisés dans l’installation du bâtiment.
Lacatégorie de mesure II correspond aux mesurages réalisés sur les circuits directement branchés
àl’installation basse tension.
Lacatégorie de mesure I correspond aux mesurages réalisés sur des circuits non reliés directement
auréseau.




FICHE DE SÉCURITÉ DU C.A 6116 (FR)
Vous venez d’acquérir un contrôleur d’installation C.A 6116 et nous vous remercions de votre
confiance.
Pourobtenir le meilleur service de votre appareil :
lisezattentivement cette notice de fonctionnement,
respectezles précautions d’emploi.


04- 2009
Code691923A01 - Ed. 1
➀
➅
➄
➃
➁
➂
➆
➇

5
Turn the device over. Use a coin to unscrew the quarter-turn
screw of the battery compartment cover.
Raise the prop and pull on it to withdraw the
battery compartment cover.
Insert the six batteries in the compartment (three
to the right and three to the left), observing the
indicated polarity (+ up).
Replace the battery compartment cover and screw the quarter-turn screw back in.
1.4. INSERTING THE BATTERIES

6
2. PRESENTATION
2.1. DEVICE
L3
L1
L2
SET-UP
var.
500mA300mA
100mA
30mA
10mA
OFF
I
N(2s)
LOOP / RCD
C.A 6030
LOOP/RCD TESTER
SMOOTH
ALARM
MR
MORE
MEM
PRINT
TEST
Connection
terminals.
Backlit LCD
display unit.
To start the
measurements.
6-Key keypad.
To select a
measurement or
SET-UP.
PE L
L2
L3 L1
N600V CAT III
>550V
Optical interface for serial
communication.
On the back:
battery compartment cover
and prop.

7
2.2. FUNCTIONS OF THE DEVICE
The C.A 6030 loop and RCD tester is a portable device operating on battery power. It is used to check the safety of electrical
installations.
Measurement functions:
voltage,
frequency,
test of the protection conductor (PE),
fault loop measurement (L-PE),
live earth resistance measurement (Ra),
line loop measurement (L-N or LN-LM)
calculation of the short-circuit current,
test of residual current devices (RCD),
detection of the direction of phase rotation in a three-phase network,
current measurement with an optional current clamp.
The C.A 6030 can be very simple to use (see §3), but experienced users can also congure it manually (see §4).
2.3. DISPLAY UNIT
2nd
k Ω VmH
msHz
P
UREF Ta
SEL
L L
IaIkI
N
>
>
<
<
52 x
150mA
250mA
s
V
kΩ
k m A
OBJ.ALARM
L
TEST
MR MEM
SMOOTH P
COM
DC
AC
R
0
R
I
N
11
1234 5 6 7
12
13
14
1516
17
18
19
20
21
22
23
24
25
26 9
10
8
The main digital display unit and the secondary digital display unit have four digits, used to display the measurements and their
various parameters.

8
1Position of the phase conductor on the outlet.
2Indication of connection of the auxiliary rod.
3Display of the smoothed measurement.
4Audible signal activated.
5Communication via the serial link in progress.
6Remaining battery life.
7Automatic standby switching of the device activated.
8Level of memory occupancy.
9Reading or recording in memory.
10 Secondary digital display unit.
11 Test number for recording in memory.
12 Block (object) number for recording in memory.
13 Main digital display unit.
14 Half-wave signal to test the RCD (start on positive- or negative-going edge).
15 Full-wave signal to test the RCD (start on positive- or negative-going edge).
16 Measurements without tripping of the RCDs.
17 Measurements with tripping of the RCDs.
18 RCD test current in pulse mode.
19 Test of RCDs in pulse mode.
20 Test of RCDs in ramp mode.
21 Indicates a press on the yellow key (second function).
22 Type of quantity displayed.
23 Alarm function activated or display of an alarm threshold.
24 Danger symbol.
25 Type of quantity displayed.
26 Compensation of the measurement leads is activated.
In the present manual, the symbol indicates blinking.
2.4. KEYPAD AND BUTTON
Presses on the keys and button are of three types:
short press,
press the yellow key then press the key (second function),
long press (more than two seconds).
2.4.1. TEST BUTTON

TEST
Start of a measurement, except for the voltage and current measurements, which are made immediately;
Stop of a measurement;

9


TEST
+Exit from the error mode.
Smoothing of the measurement (SMOOTH). Activate before starting the measurement.

> 2s
TEST
Compensation of the measurement leads (with the rotary switch set to LOOP/RCD).
2.4.2. 2ND KEY (YELLOW)
+


other key
Access to the second function of the key (marked in yellow under the key).

> 2s
Display of time and date for as long as the press lasts.
2.4.3. MORE KEY

MORE
Display of complementary measurements and/or calculations of a function, possibly in association with the key.

+

MORE
Activation or de-activation of the alarm.
The alarm is adjusted in SET-UP (see §5.8).
2.4.4. KEY

Display of the complementary measurements and/or calculations of a function, possibly in association with the
MORE key.
In memory write, memory read, or printing, selection of the block (OBJ.) or test (TEST).

10

+

On/Off switching of display unit backlighting.

> 2s
In the RCD settings of the switch, selection of the type of test (pulse or ramp) and of the pulse current value.
2.4.5. KEY

In memory write, memory read, or printing, incrementing of the block (OBJ.) or test (TEST) number.
In the RCD settings of the switch, selection of the RCD test mode - (with or without tripping) - and of the shape
and polarity of the test signal.

+

In memory write, memory read, or printing, decrementing of the block (OBJ) or test (TEST) number.
2.4.6. MEM KEY

MEM

MEM
+Recording of a measurement and all information linked to it.

+

MEM
Reading out of recorded measurements.
2.4.7. PRINT KEY

PRINT
Printing of the last measurement made.

11
2.5. SWITCH
The switch has 10 settings, used to select the desired function:
OFF Switching the device off
LOOP / RCD 10mA, 30mA,
100mA, 300mA, 500mA Test of RCD, rating 10, 30, 100, 300 or 500mA, or loop measurement only.
LOOP / RCD var Test of RCD, rating 6 to 650mA (rating chosen in SET-UP).
Determination of the phase rotation direction
Current measurement
SET-UP Conguration of the device

12
3. SIMPLE USE
The device is congured so that it can be used without modifying the parameters; this covers the great majority of the
measurements to be made. For most measurements, you can therefore simply select the function by turning the switch,
then pressing the TEST button.
However, you can also parameterize the device and the measurements using the function keys and SET-UP (see §4). If
you want to record your measurement results, refer to §6.
You will nd denitions of all of the abbreviations in §10.
Users are assumed to be at the reference earth potential. They must therefore not be insulated from earth: they must not wear
insulating shoes or gloves and must not use a plastic object to press the TEST button.
3.1. VOLTAGE MEASUREMENT
3.1.1. MAKING A MEASUREMENT
PE L
L2
L3 L1
N600V CAT III
>550V
Connect one end of the lead to the terminal block of the
device and the other to the device to be tested.
The mains socket outlet of the measuring cable is marked with a white reference spot. On the display unit, you will see:

L
: if the phase is on the right-hand pin of the mains plug when the white spot is up.

L
: if the phase is on the left-hand pin of the mains plug when the white spot is up.

L L
: if the device cannot locate the phase, probably because the PE is not connected or the L and PE conductors are
interchanged.
Remark: the terminal identied as L is the one that has the highest voltage with respect to PE; this does not mean that the other
terminal is not at a dangerous voltage.
L3
L1
L2
SET-UP
va r.
500mA300mA
100mA
30mA
10mA
OFF
LOOP / RCD
Set the switch to one of the six
RCD positions.

13
3.1.2. READING OF THE RESULT
3.1.3. ERROR INDICATION
The only errors reported in voltage measurement are values outside the voltage and/or frequency measurement range.
To exit from the error mode, you must eliminate the cause of the error.
Hz
L
V
AC
0
R
The voltage ULN and its frequency are displayed.
The key is used to see voltages ULN, ULPE and UNPE. and their frequencies.

14
To activate the alarm, press the ALARM key. The device will emit an audible signal if the measurement
result exceeds 50 Ω(default value; can be programmed in SET-UP).

+

MORE

To set the device to non-tripping mode, press the key until the symbol is displayed.
Set the switch to one of the
LOOP/RCD positions.
L3
L1
L2
SET-UP
va r.
500mA300mA
100mA
30mA
10mA
OFF
LOOP / RCD
Connect the measuring cable to the device, then to the socket outlet of the installation
to be tested.
We recommend rst disconnecting all loads from the network on which you make the
loop measurement.
This guarantees non-tripping of upstream RCDs, by eliminating any residual current
there might be in the installation.
If, in spite of all, tripping occurs, refer to §5.7.4, which explains how to reduce the test
current.
Case of a TN installation
PE L
L2
L3 L1
N600V CAT III
>550V
L
PE
N
Rb
RE
RN
R
L
PE L
L2
L3 L1
N600V CAT III
>550V
L
PE
N
Rb
RN
R
L
Ra
Case of a TT installation
3.2. LOOP MEASUREMENT
The loop measurement is used to measure the earth resistance at a place where it is impossible to make a 3P earth measurement
or to disconnect the earthing strip, a common situation in urban settings.
The loop measurement does not trip RCDs located upstream of the measurement point.
In a TT type installation, the loop impedance measurement is an easy way to make an earth measurement without planting any
rods. The result obtained, RLPE, is the loop resistance of the installation between the L and PE conductors. It is only very slightly
greater than the earth resistance, to which it adds the earthing resistance of the transformer and the resistance of the cables,
which are both negligible.
In a TN or TT installation, the loop resistance measurement can also be used to calculate the short-circuit current and to size the
protections of the installation (fuse or circuit-breaker)
The loop measurement cannot be made in an IT installation because of the high earthing impedance of the power supply transformer,
even its total isolation from earth.
3.2.1. MAKING A MEASUREMENT

15
Ω
L
R
0
R
The measurement result, RLPE, is the loop resistance.
If the switch is set to 300 or 500mA, the loop impedance, ZLPE, is also displayed.
3.2.2. READING OF THE RESULT
During the measurement, the device displays “LOOP” and the dashes blink.
At the end of the measurement, the device displays the following screen:

TEST
Press the TEST button to start the measurement. The measurement stops automatically.
V
UREF
L
Ik
A
0
R

MORE
Press the MORE key to view the
other result screens. Ik is the short-circuit current:
Ik = UREF / RLPE.
As default, UREF = 230 V.
There are two other result screens. The key is used to view voltages ULN, ULPE and UNPE and the compensation resistances of
the leads RDL, RDPE and RDN.
3.2.3. ERROR INDICATION
The commonest errors in the case of loop resistance measurement:
A connection error.
Voltage on the protection conductor too high.
Check your connections carefully, then repeat the measurement.
To exit from the error mode, press the TEST button.

16
3.3. EARTH MEASUREMENT ON LIVE CIRCUIT
This measurement is made without disconnecting the earth, with only one additional rod, saving time with respect to a conventional
earth measurement with two auxiliary rods.
In the case of a TT type installation, this measurement is a very simple way to measure the earth of frame grounds.
The live earth measurement cannot be made in an IT installation because of the high earthing impedance of the power supply
transformer, even its total isolation from earth.
3.3.1. MAKING A MEASUREMENT
Set the switch to one of the RCD
positions.
L3
L1
L2
SET-UP
va r.
500mA300mA
100mA
30mA
10mA
OFF
LOOP / RCD
Connect the measuring cable to the device, then to the socket outlet of the installation
to be tested.
We recommend rst disconnecting all loads from the network on which you make the
live earth measurement.
Plant the auxiliary rod at a distance of more than 25 metres from the earth electrode
and connect it to the terminal of the device. The symbol is then displayed.
Case of a TT installation
PE L
L2
L3 L1
N600V CAT III
>550V
L
PE
N
Rb
RN
R
L
Ra
> 25 m
Case of a TN installation
PE L
L2
L3 L1
N600V CAT III
>550V
L
N
Rb
RNPE
R
L
PE
Ra
> 25 m

To set the device to non-tripping mode, press the key until the symbol is displayed.
To activate the alarm, press the ALARM key. The device will emit an audible signal if the measurement
result exceeds 50 Ω(default value; can be programmed in SET-UP).

+

MORE

TEST
Press the TEST button to start the measurement. The measurement stops automatically.

17
3.3.2. READING OF THE RESULT
During the measurement, the device displays “-rA-” and the dashes blink.
At the end of the measurement, the device displays the following screen:
Ω
P
L
R
0
R
The earth resistance, RA, is the measurement result.
3.3.3. ERROR INDICATION
The commonest errors in the case of a live earth measurement:
A connection error.
A voltage on the protective conductor that is too high.
An earth rod resistance that is too high: reduce it by tamping and moistening the earth around the rod.
A voltage on the rod that is high: move the rod away from the inuence of the earth electrode.
To exit from the error mode, press the TEST button.

18
3.4. TEST OF RCD
The device can perform two types of test on RCDs:
a test of tripping in ramp mode,
a test of tripping in pulse mode.
The test in ramp mode serves to determine the current at which the RCD trips.
The test in pulse mode serves to determine how long it takes for the RCD to trip.
3.4.1. PERFORMING A TEST
Set the switch to the RCD position
that corresponds to the rated current
of the RCD to be tested.
L3
L1
L2
SET-UP
va r.
500mA300mA
100mA
30mA
10mA
OFF
LOOP / RCD
Connect the three-conductor cord to the device, then plug it into an outlet in
the circuit protected by the RCD to be tested.
For a more accurate measurement in ramp mode, we recommend rst
disconnecting all loads from the network on which you are performing the
test, in order to eliminate any residual currents in the installation.
PE L
L2
L3 L1
N600V CAT III
>550V
Rb
RN
RLL
N
PE
Ra
RCD
Particular case:
To test an RCD located downstream of another
RCD having a smaller nominal current, you must
use the three-conductor cord terminated by 3
leads and make the connections shown opposite
(upstream-downstream method).
In this case, the RCD tested is not part of the
installation.
PE L
L2
L3 L1
N600V CAT III
>550V
Rb
RN
RLL
N
30 mA 300 mA
Ra
PE
RCD RCD
red
white
yellow
Check that you are in fact in tripping mode ( symbol displayed). If not, press the key until the symbol
is displayed.


19

> 2s
Then choose the type of test (if the tripping mode is not selected, it is not possible to choose the type of test):
Perform a long press
on the key.
Each time the key is pressed again, the device proposes a type of test:
test in ramp mode

x I
N
test in pulse mode

2 x s
I
N
test in Pulse mode at 2IDNfor the type S RCD

5 x I
N
test in Pulse mode at 5IDN
150mA test in Pulse mode at 150mA

250mA
test in Pulse mode at 250mA
The test signal shape proposed is sinusoidal starting with a positive-going edge. This suits most of
the tests. It is however possible to change it (see §4.6).

> 2s
To validate your choice, perform another long press on the key.

+

MORE
To activate the alarm, press the ALARM key. The device will emit an audible signal if the measurement result exceeds 50 Ω
(default value; can be programmed in SET-UP).
Press the TEST button to start the measurement. The measurement stops automatically.
The device rst of all performs a loop measurement to check that the fault voltage, UF , will not exceed maximum
voltage ULduring the tripping test. If this is the case, the tripping measurement is disabled. Again, during the tripping
test, voltage UFis monitored. If it exceeds UL, the test is aborted.
This precaution ensures that the measurement made will not endanger the installation.

TEST

20
3.4.3. ERROR INDICATION
The commonest errors in the case of an RCD test are:
A connection error.
The fault voltage is too high and, for the user’s safety, the test was aborted. It is necessary in this case to revise the wiring of
the installation and to measure the earth with an earth ohmmeter.
An earth rod resistance that is too high: reduce it by tamping and dampening the earth around the rod.
The circuit-breaker trips out when it should not. The leakage currents are probably too high. First disconnect all loads from the
network on which you are performing the test. Also perform a second test with current INtP reduced in SET-UP (see §5.7.4).
If the problem persists, the RCD must be declared defective.
The RCD failed to trip in the ramp mode test. But, to ensure the users’ safety, the RCD must trip at a current between IDN /2 and
IDN. Check the wiring of the RCD. If there is nothing wrong with it, the RCD must be declared defective and replaced.
The RCD failed to trip in the test in pulse mode. Check the wiring of the RCD. If there is nothing wrong with it, the RCD must
be declared defective and replaced.
The device is too hot. Wait until it cools before resuming the measurements.
To exit from the error mode, press the TEST button.
ms
Ta
L
Ia
m A
0
R
In the ramp mode, the current Iaat which the RCD tripped. Iamust be
between 0.5 IDNand IDN.
In the pulse mode, the tripping time Ta. It must be less than 300 ms (200
ms for a selective RCD).
3.4.2. READING OF THE RESULT
During the measurement, the device starts by displaying “LOOP” during the preliminary measurement; during the test of the RCD,
it displays “rCd” and the dashes blink.
A
S
(selective) RCD is normally tested at 2 IDN. The device counts 30 seconds between the preliminary measurement and the test
of the RCD proper, in order to allow its demagnetization, and displays “SEC”. This wait can be cut short by pressing the TEST
button again.
The results are presented in the same way in the ramp mode as in the pulse mode, with or without an auxiliary rod.
At the end of the measurement, the device displays the following screen: