HT instruments 5035 User Manual
User manual
MACROTEST 5035
© Copyright HT ITALIA 2011 Release EN 1.07 - 27/07/2011
MACROTEST 5035
Table of contents:
1. SAFETY PRECAUTIONS AND PROCEDURES ........................................................................ 3
1.1. Preliminary instructions ........................................................................................................... 3
1.2. During use ............................................................................................................................... 4
1.3. After use .................................................................................................................................. 4
1.4. Measuring (overvoltage) categories definitions ....................................................................... 4
2. GENERAL DESCRIPTION ......................................................................................................... 5
2.1. Features .................................................................................................................................. 5
2.2. Instrument description ............................................................................................................. 6
3. PREPARATION FOR USE ......................................................................................................... 7
3.1. Initial check .............................................................................................................................. 7
3.2. Power supply ........................................................................................................................... 7
3.3. Calibration ............................................................................................................................... 7
3.4. Storage .................................................................................................................................... 7
3.5. How to set measurement unit .................................................................................................. 8
4. DESCRIPTION OF THE ROTARY SWITCH FUNCTIONS ........................................................ 9
4.1. LOWΩ: Continuity test of earth protective and equalizing potential conductors ...................... 9
4.1.1. Mode "CAL" ............................................................................................................................... 10
4.1.2. Procedure to cancel calibration parameters and cal symbol ..................................................... 11
4.1.3. Procedure "AUTO", "R+TIMER", "R-TIMER" ............................................................................ 12
4.1.3.1. Mode "AUTO" ............................................................................................................................. 13
4.1.3.2. Mode "R+TIMER" or “R-TIMER" ................................................................................................ 13
4.1.4. Anomalous cases during "AUTO", "R+TIMER", "R-TIMER" tests ............................................. 13
4.2. MΩ: Insulation resistance with test voltage of 50V, 100V, 250V, 500V or 1000V ............ 15
4.2.1. Procedure to measure insulation resistance in any modes ....................................................... 15
4.2.1.1. Mode "MAN" ............................................................................................................................... 16
4.2.1.2. Mode "TIMER" ............................................................................................................................ 17
4.2.2. Special cases which may occur during the tests "MAN", "AUTO", "TIMER" ............................. 18
4.3. RCD RCD : Tests on RCDS type A or AC .......................................................... 19
4.3.1. Measurement procedure for RCD test valid for all the working modes ..................................... 21
4.3.1.1. Mode "MAN x½" ......................................................................................................................... 22
4.3.1.2. Mode "MAN x1, x2, x5" ............................................................................................................... 23
4.3.1.3. Mode "AUTO" ............................................................................................................................. 23
4.3.1.4. Mode "RAMP " ....................................................................................................................... 24
4.3.1.5. Mode "Ut" .................................................................................................................................... 25
4.3.2. Tripping times for the general and selective RCDs ................................................................... 25
4.3.3. Anomalous cases which may occur during the RCD tests in any working mode ..................... 26
4.4. LOOP : Line/Loop impedance measurement and prospective short circuit current ......... 30
4.4.1. High resolution Impedance measurement (0.1mΩ) .................................................................. 30
4.4.2. Mode "P-N" ................................................................................................................................ 31
4.4.3. Mode "P-P" ................................................................................................................................ 32
4.4.4. Mode "P-PE" .............................................................................................................................. 33
4.4.5. Mode " " ................................................................................................................................ 35
4.4.6. Anomalous cases which may occur during LOOP tests in any working mode .......................... 36
4.4.7. Anomalous cases which may occur during phase sequence tests ........................................... 39
4.5. R
a15mA
4.5.1. Anomalous cases which may occur during R
4.6. EARTH ρ: Earth resistance and resistivity measurements .................................................... 45
4.6.1. Measurement procedure for "2P" test mode ............................................................................. 46
4.6.1.1. Earth resistance measurement from a socket ............................................................................ 48
4.6.2. Measurement procedure for "3P" test mode ............................................................................. 49
4.6.3. Measurement procedure for "ρ" test mode ................................................................................ 51
4.6.4. Anomalous cases which may occur during EARTH ρ tests ...................................................... 53
5. OPERATIONS WITH MEMORY ............................................................................................... 55
5.1. Saving measurements ........................................................................................................... 55
5.2. Recall measurements ............................................................................................................ 56
5.3. Clear memory ........................................................................................................................ 57
6. RESET OF THE INSTRUMENT AND DEFAULT PARAMETERS ............................................ 58
: Global earth resistance measurement ................................................................. 41
A15mA
tests...................................................... 43
EN - 1
MACROTEST 5035
6.1. Reset procedure .................................................................................................................... 58
6.2. Default parameters ................................................................................................................ 58
7. INSTRUMENT CONNECTION TO A PC .................................................................................. 59
8. MAINTENANCE ........................................................................................................................ 60
8.1. General .................................................................................................................................. 60
8.2. Battery replacement .............................................................................................................. 60
8.3. Cleaning ................................................................................................................................ 60
8.4. End of life .............................................................................................................................. 60
9. TECHNICAL SPECIFICATIONS ............................................................................................... 61
9.1. Technical features ................................................................................................................. 61
9.1.1. Safety standards ........................................................................................................................ 63
9.1.2. General specifications ............................................................................................................... 63
9.2. Environment .......................................................................................................................... 64
9.2.1. Environmental working conditions ............................................................................................. 64
9.3. Accessories ........................................................................................................................... 64
10. SERVICE .................................................................................................................................. 65
10.1. Warranty conditions ............................................................................................................... 65
10.2. Service .................................................................................................................................. 65
11. PRACTICAL REPORTS FOR ELECTRICAL TESTS ............................................................... 66
11.1. LOWΩ: Continuity measurement of protective conductors .................................................... 66
11.2. Insulation resistance measurement ....................................................................................... 67
11.3. Check of the circuit separation .............................................................................................. 70
11.4. Working test of RCDS (RCD, RCD/DC, RCD S, RCD/DC S) ................................................ 72
11.5. RCD tripping time test ........................................................................................................... 73
11.6. Short circuit fault impedance (ZPN, ZPP) ................................................................................. 74
11.7. Fault loop impedance measurement (phase – earth) ............................................................ 74
11.8. Earth resistance measurement in TT systems....................................................................... 75
11.9. Earth resistance measuremenT, 3-wire and 2-wire methods ................................................ 76
11.10. Earth resistivity measurement ............................................................................................... 77
EN - 2
MACROTEST 5035
1. SAFETY PRECAUTIONS AND PROCEDURES
This apparatus conforms with safety standards IEC/EN61557 and IEC/EN61010-1 relating
to electronic measuring instruments.
Strictly keep to the following instructions before and during measurements:
• For your own safety as well as that of the apparatus you are recommended
to follow the procedures described in this instruction manual and carefully
read all the notes preceded by the symbol
• Do not take measurements in wet environments
• Do not effect measurements in environments with explosive gas, fuels or
dust
• Keep you insulated from the object under test waiting for measuring
• Avoid any contact with exposed metal parts, ends of test leads not in use,
circuits, etc
• Do not effect any measurement in case of unusual conditions of the
instrument such as deformation, breakage, leakage of substances,
absence of display reading etc
• Pay careful attention when measuring voltages exceeding 25V in particular
places (building yards, swimming pools, ..) and 50V in ordinary places
The following symbols are used on the meter and in this manual:
because of the risk of electric shock
Caution: refer to the instructions reported on this manual; improper use may
damage the apparatus or its components.
AC voltage or current
CAUTION
Double insulation
1.1. PRELIMINARY INSTRUCTIONS
• This instrument has been designed for use in environm ents with a pollution
degree 2
• It can be used for tests on electrical installations with over voltage category
III up to 265V (to Earth)
• You are recommended to comply with the standard safety regulations
aimed at protecting you against dangerous currents and protecting the
instrument against improper use
• Only the leads supplied with the instrument guarantee compliance with the
safety standards. They must be in good conditions and must be replaced, if
necessary, with identical models
• Do not perform measurements on circuits exceeding the specified voltage
limits
• Do not effect any measurement under environmental conditions beyond the
limits specified in this manual
• Check that batteries have been placed correctly
• Before connecting test leads to the circuit under test, check that rotary
switch position is correct
• Check that LCD and rotary switch indicate the same function
CAUTION
EN - 3
MACROTEST 5035
1.2. DURING USE
Carefully read the following recommendations and instructions:
CAUTION
• No compliance with the Warnings and/or Instructions may damage the
apparatus and/or its components or injure the operator
• Before selecting any function disconnect the test leads from the circuit
under test
• When the instrument is connected to the tested circuit never touch any
test lead which is not being used
• Avoid to effect resistance measurements in the presence of external
voltages; even though the instrument is protected a too high voltage may
cause malfunctions
• If the symbol is displayed during use interrupt testing and replace
batteries following the procedure described under paragraph Errore.
L'origine riferimento non è stata trovata.. The instrument is capable of
keeping the data stored even though batteries are not installed
1.3. AFTER USE
• When the measurements are completed disconnect the test leads from the circuit
under test and after that switch OFF the instrument
• Remove batteries when the apparatus remains unused for long periods
1.4. MEASURING (OVERVOLTAGE) CATEGORIES DEFINITIONS
The norm IEC/EN61010-1: Safety requirements for electrical equipment for measurement,
control and laboratory use, Part 1: General requirements, defines what measuring
category, usually called overvoltage category, is. On paragraph 6.7.4: Measuring circuits, it
says:
(OMISSIS)
circuits are divided into the following measurement categories:
• Measurement category IV is for measurements performed at the source of the low-
voltage installation.
Examples are electricity meters and measurements on primary overcurrent protection
devices and ripple control units.
• Measurement category III is for measurements performed in the building installation.
Examples are measurements on distribution boards, circuit breakers, wiring, including
cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and
equipment for industrial use and some other equipment, for example, stationary motors
with permanent connection to fixed installation
• Measurement category II is for measurements performed on circuits directly
connected to the low voltage installation.
Examples are measurements on household appliances, portable tools and similar
equipment.
• Measurement category I is for measurements performed on circuits not directly
connected to MAINS.
Examples are measurements on circuits not derived from MAINS, and specially
protected (internal) MAINS-derived circuits. In the latter case, transient stresses are
variable; for that reason, the norm requires that the transient withstand capability of the
equipment is made known to the user.
EN - 4
MACROTEST 5035
2. GENERAL DESCRIPTION
Dear Customer, we thank you for your patronage. The instrument you have just purchased
will grant you accurate and reliable measurements provided that it is used according to the
present manual’s instructions.
The instrument was designed to grant the user the utmost safety conditions thanks to a
new concept assuring double insulation and over voltage category III.
2.1. FEATURES
LOWΩ: Continuity test of earth, protective and equalizing potential conductors with
test current higher than 200mA and open circuit voltage ranging from 4V
to 24V.
MΩ: Measurement of insulation resistance with DC test voltage 50V, 100V,
250V, 500V or 1000V.
RCD : Measurement on common and/or selective RCDs AC type ( ) of
the following parameters:
Tripping time.
Tripping current.
Contact voltage (Ut).
Overall earth resistance (Ra).
Under this mode the instrument can measure the overall earth
resistance without causing RCD tripping.
RCD : Measurement on common and/or selective RCDs A type ( ) of
the following parameters:
Tripping time.
Tripping current.
Contact voltage (Ut).
Overall earth resistance (Ra).
Under this mode the instrument can measure the overall earth
resistance without causing RCD tripping.
LOOP
: Measurement of line and fault loop impedance with calculation of
prospective short circuit current. Indication of phase rotation
sequence.
R
a15mA
: Measurement of fault loop impedance between earth and phase
conductors with current of 15mA and calculation of prospective short
circuit current.
EARTH ρ: Measurement of earth resistance and earth resistivity.
EN - 5
MACROTEST 5035
2.2. INSTRUMENT DESCRIPTION
LEGEND:
1
1. Display
2. Function keys
3. Rotary switch
2
∆
Un/I
n
FUNC
S UL
DIST
3
FUNC
Un/I∆n
DIST
S▲s
UL▼
START
STOP
DISP
CLR
RCL
ESC
SAVE
START
STOP
DISP
CLR
RCL
SAVE
ESC
FUNCTION key to select one measuring mode.
U
DIST key for selection of rated voltage, differential current or
n/I∆n
distance depending on which measurement is selected.
S▲key for selection of RCD type (Common or Selective) or to increase
the test duration interval or to scroll the results of the stored tests.
UL▼ key for selection of contact voltage limit or to decrease the test
duration interval or to scroll the results of the stored tests.
ON/OFF key. Keep it pressed some seconds for switching off the
instrument.
START/STOP key to start or to stop tests.
DISPLAY key to scroll the single and multiple tests (Ex: RCD AUTO)
which have been effected and stored.
CLEAR key to cancel the stored tests.
RECALL/ESCAPE key to recall the stored tests (RCL) and leave the
selected function or mode (ESC).
SAVE key to save tests.
EN - 6
MACROTEST 5035
3. PREPARATION FOR USE
3.1. INITIAL CHECK
This instrument has been checked mechanically and electrically prior to shipment.
Any care has been taken to ensure that the instrument reaches you under safe conditions.
You are recommended, however, to carry our a rapid check to detect any possible
damage which might have been caused during transport. Should this be the case,
immediately contact HT Italia.
Check also that the packaging contains all the parts listed under paragraph 9.3. In case of
discrepancies contact the dealer.
In case you have to send the instrument back please follow the instructions reported in
paragraph 10.
3.2. POWER SUPPLY
The instrument is supplied by six batteries model 1.5V – LR6 – AA – AM3 – MN 1500 not
included in the package.
To replace batteries follow the instructions reported in paragraph 8.2.
When batteries are low the symbol is displayed. To replace batteries follow the
instructions indicated in paragraph 8.2
3.3. CALIBRATION
The instrument fulfils the technical specifications listed in this manual. The performance of
the specifications are guaranteed for one year.
3.4. STORAGE
In order to grant the accuracy of the measurements, after a period of storage in extreme
environmental conditions, wait for the time necessary so that the apparatus is back to
normal measuring conditions (see environmental specifications listed in paragraph 9.2.1).
EN - 7
MACROTEST 5035
3.5. HOW TO SET MEASUREMENT UNIT
Is possible to set the distance measurement unit (in earth resistivity) following this
procedure:
1. While pushing FUNC button turn the switch on any position.
2.
The instrument will display the following
screen.
le m
3. Choose the desired distance measurement unit between meter and feet that change by
pushing S▲ and UL▼ keys (appear m and ft).
4.
Push SAVE key confirming the choice.
The instrument will display the following
screen.
le m
Push ESC key leaving this menu without
confirming any change.
OK
EN - 8
MACROTEST 5035
4. DESCRIPTION OF THE ROTARY SWITCH FUNCTIONS
4.1. LOWΩ: CONTINUITY TEST OF EARTH PROTECTIVE AND EQUALIZING
POTENTIAL CONDUCTORS
The measurement is effected with a test current higher than 200mA and open circuit
voltage ranging from 4 to 24V DC according to EN 61557-2 and VDE 0413 part 4.
Before carrying out the continuity test make sure that there is no voltage at the
ends of the conductor under test.
Turn the switch on LOWΩ position.
Switch on the instrument.
FUNC
The key FUNC permits to select one of the following measuring modes
(which can be shown cyclically when pressing the key):
Mode AUTO (the instrument carries out two measurements with reversed
polarity R+ and R-, and displays their average value R
recommended for the continuity test.
Mode R + TIMER (measurement with positive polarity and possibility of
setting the duration time of the test). In this case the operator can set a
measuring time long enough to permit him to move the protective
conductors while the instrument is carrying out the test so detecting any
bad connection.
Mode R - TIMER (measurement with negative polarity and possibility of
setting the duration time of the test). In this case the operator can set a
measuring time long enough to permit him to move the protective
conductors while the instrument is carrying out the test so detecting any
bad connection.
Mode CAL (compensation of the resistance of the cables used for the
measurement).
NOTE: If the resistance is lower than 5Ω (including the resistance of the calibration) the
continuity test is effected by the instrument with a current higher than 200mA. If
the resistance is higher than 5Ω the continuity test is effected by the instrument
with a decreasing current.
CAUTION
). This mode is
avg
EN - 9
MACROTEST 5035
p
4.1.1. Mode "CAL"
1. Select mode CAL by means of the FUNC key.
2. Connect the black and blue cables to the instrument input terminals B1 and B4
respectively:
B2 B3
B1
B4
Connection of instrument terminals during calibration procedure.
3. If the cables supplied with the instrument are not long enough for the measurement you can
extend the blue cable.
4. Connect the crocodiles to the cable terminals.
5. Short-circuit the measuring cable ends making sure that the conductive parts of the
crocodiles make a good contact to each other (see previous picture).
START
6. Press the START/STOP key. The instrument carries out the calibration.
STOP
At the end of the test
the result is stored and
used as OFFSET (that
is to say that it is
subtracted from any
continuity test carried
out) for all the
subsequent
measurements until a
CAL LOWΩ
0.00 Ω
203 mA
Message CAL:
means that the
instrument was
calibrated; this
symbol remains
on the display
for any further
measurement
even though the
unit is switched
off and on again.
new calibration is
carried out.
This screen is displayed for only 2 seconds
then the instrument emits a double sound
signal (indicating that the calibration is
completed) and displays the default screen
relative to the LOWΩ test under AUTO mode.
Current supplied
by the instrument
during the
calibration
rocedure.
NOTE: The instrument effects the calibration of cables with resistance lower of 5Ω.
EN - 10
MACROTEST 5035
CABLES USED FOR THE TEST Before each measurement always make sure that
the calibration is referred to the cables in use.
During a continuity test, if the resistance value free
of calibration (that is the resistance value less the
calibration offset value) is negative, the symbols
o as well as blinking CAL are displayed
(according to 5th screen paragraph 4.1.4).
Probably the calibration stored in the instrument
memory is referred to cables other than those in
use, therefore a new calibration is to be effected.
The display of “Measuring” means that the instrument is measuring. During
this phase never disconnect test leads.
4.1.2. Procedure to cancel calibration parameters and cal symbol
To cancel calibration parameters (and the
symbol CAL) it is necessary to effect a
calibration procedure with a resistance of
test leads higher than 5Ω (for example
with disconnected test leads). When a
cancellation is effected the screen nearby
is displayed first, followed by the screen
below:
The screen nearby is displayed for 2
seconds, after which the instrument emits a
long sound signal and then displays the
default screen relative to the LOWΩ test
under AUTO mode without the symbol CAL.
CAUTION
LOWΩ
o> 5 Ω
cal
Measuring
LOWΩ
cal
es
Message >5Ω:
means that the
instrument
detected a
resistance higher
than 5Ω
therefore it will
proceed with
Reset procedure.
Message rES:
means that the
instrument
effected
cancellation
(RESET) of the
calibration
parameters
EN - 11
MACROTEST 5035
4.1.3. Procedure "AUTO", "R+TIMER", "R-TIMER"
1. Select the desired mode by means of the FUNC key.
2. Connect the black and blue cables to the instrument input terminals B1 and B4
respectively.
B2 B3
B1
B4
Connection of the instrument terminals during LOWΩ test.
3. If the cables supplied with the instrument are not long enough for the measurement you can
extend the black cable.
4. Connect two crocodiles to the cable terminals.
5. Short-circuit the measuring cable ends making sure that the conductive parts of the
crocodiles make a good contact to each other. Press the START/STOP key. If the
instrument displays a resistance value other than 0.00 repeat the instrument
calibration (see paragraph 4.1.1).
6. Connect the instrument terminals to the ends of the conductor on which the continuity test is
to be carried out (see previous picture).
7. If the mode "R+TIMER" or "R-TIMER" was selected use the following keys to select
the duration time of the test:
S▲
press this key to increase the duration time of the test (Tmax=15 seconds).
UL▼t
press this key to decrease the duration time of the test (Tmin=3 seconds).
START
8. Press the START/STOP key. The instrument effects the measurement.
STOP
In R+/R- Timer mode press START/STOP key again if the test is to be stopped.
CAUTION
The display of “Measuring” means that the instrument is measuring. During
this phase never disconnect test leads.
EN - 12
MACROTEST 5035
T
g
Ω
g
4.1.3.1. Mode "AUTO"
At the end of the test, if the average
resistance value Ravg results to be
lower than 5Ω the instrument emits a
double sound signal indicating the
positive outcome of the test and
displays one screen similar to the
screen alongside.
SAVE
4.1.3.2. Mode "R+TIMER" or “R-TIMER"
If during the test a resistance value
R+Timer or R–Timer lower than 5Ω
was detected, the instrument (after the
set time has elapsed) emits a double
sound signal indicating the positive
outcome of the test displays one screen
similar to the screen alongside.
The symbols R+ or R- are displayed.
SAVE
4.1.4. Anomalous cases during "AUTO", "R+TIMER", "R-TIMER" tests
In case a value of Ravg or R+ or R-
higher than or equal to 5Ω but lower
than 99.9Ω was detected, at the end of
the test the instrument emits a long
sound signal and displays one screen
similar to the screen alongside.
ATTENTION: value of R
In AUTO mode, if a Ravg or R+ or R-
higher than 99.9Ω was detected, at
the end of the test the instrument emits
a long sound signal and displays the
screen alongside.
ATTENTION: value of R
hi
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
hi
her than 5
or R+ or R- is too
avg
h.
CAL LOWΩ
1.07 Ω
219 mA
AUTO
CAL LOWΩ
1.08 Ω
219 mA 5 s
R+
R-
IMER
CAL LOWΩ
o 5.75 Ω
216 mA 5 s
AUTO
CAL LOWΩ
o> 99.9 Ω
- - - mA
AUTO
Average
resistance value
Ravg.
Average test
current value
Iavg.
Duration time of
the test.
Value of the test
current I+ or I-.
Only in case the
mode R+TIMER
or R-TIMER was
selected.
AUTO mode.
99.9Ω is the
maximum value
which can be
measured in the
LOWΩ AUTO or
R+ or R-mode.
EN - 13
MACROTEST 5035
A
In case the mode R+TIMER or RTIMER was selected and a R+ or R-
higher than 99.9Ω was detected, the
instrument emits an intermittent
sound signal during the test, a long
sound signal at the end of the test
and displays the screen alongside.
CAL LOWΩ
o> 99.9 Ω
- - - mA 4 s
R+
TIMER
99.9Ω is the
maximum value.
ATTENTION:
value of R+ or Ris too high.
In case that:
R
MEASURED-RCALIBRATION
< 0Ω the
instrument displays the screen
alongside.
CAL LOWΩ
o 0.00 Ω
Blinking CAL.
219 mA
ATTENTION: R
MEASURED-RCALIBRATION
< 0
UTO
AUTO mode.
SAVE
SAVING: The tests can be stored pressing the SAVE key twice
(according to paragraph 5.1).
If the terminal voltage is higher than
10V, the instrument does not carry out
the test and displays the screen
alongside for 5 seconds after which, the
instrument displays the screen relative
to the precedent selected test mode
LOWΩ under AUTO mode.
CAL LOWΩ
o 13V
VOL AG
ATTENTION: the
test was not
effected because
of voltage at the
terminal ends.
SAVE
THIS RESULT CANNOT BE SAVED.
EN - 14
MACROTEST 5035
4.2. MΩ: INSULATION RESISTANCE WITH TEST VOLTAGE OF 50V, 100V,
The measurement is effected according to EN 61557-2 and VDE 0413 part 1.
250V, 500V OR 1000V
CAUTION
Before effecting the insulation test make sure that the circuit under test is not
energized and all the relative loads are disconnected.
Turn the switch on MΩ position.
Switch on the instrument.
FUNC
The key FUNC permits to select one of the following measuring modes
(which can be shown cyclically when pressing the key):
Mode MAN (minimum test time of 10 seconds or set by the pressing
duration on the START/STOP key). Recommended test.
Mode TIMER (test duration depending on the selected interval (from 10
to 999 seconds). This test can be effected in case a minimum measuring
time is required.
4.2.1. Procedure to measure insulation resistance in any modes
1. Select the desired mode by means of the FUNC key.
2. Connect the black and blue cables to the instrument input terminals B1 and B4
respectively.
P
M
B2 B3 B4B1
B2 B3 B4B1
Insulation between phase and earth in an electrical
installation using untied cables.
Insulation between phase and earth in an
electrical installation using the shuko cable.
3. If the cables supplied with the instrument are not long enough for the measurement you can
extend the blue cable.
4. Connect the instrument terminals to the object which is to be submitted to the insulation
test after disconnecting the circuit under test and all the relative loads (see
previous picture).
Un/I∆n
5. By means of U
DIST
to be carried out (see table). The values to be selected are 50, 100,
select the test voltage suitable for the type of test
n/I∆n
250, 500, 1000V DC
EN - 15
MACROTEST 5035
Standard Brief description Test voltage Maximum limit value
Systems SELV or PELV
CEI 64-8/6
CEI 64-8/4
EN60439 Electrical panel boards 230/400V 500VDC
EN60204 Electrical equipment of machines 500VDC
Systems up to 500V (Civil installations)
Systems over 500V
Floor and wall insulation in civil installa tions
Floor and wall insulation in systems over 500V
250VDC
500VDC
1000VDC
500VDC
1000VDC
> 0.250MΩ
> 0.500MΩ
> 1.0MΩ
> 50kΩ (if V<500V)
> 100kΩ (if V>500V)
> 230kΩ
> 1MΩ
Test voltage values and the relative maximum limit values for the most common kinds of test.
CAUTION
If “Measuring” is displayed the instrument is effecting the measurement.
During this phase do not disconnect the test leads as the circuit under test
may remain charged at a dangerous voltage due to the parasite capacities of
the installation. Independently of the working mode selected the instrument
throws a resistance in the output terminals at the end of each test to
discharge the parasite capacities of the circuit.
4.2.1.1. Mode "MAN"
START
6. Press the START/STOP key.
STOP
The instrument effects the test lasting:
Minimum 6 seconds in case the key is pressed and released within 5 seconds.
Until the key is released for all the other cases.
At the end of the test, in case the
resistance value R
to be lower than R
detected results
ISO
(depending on
MAX
the selected voltage see following table)
and the test is effected at the
selected rated voltage value, the
instrument emits a double sound
signal indicating the positive
outcome of the test displays one
screen similar to the screen alongside.
R
ISO
1.00 MΩ
500 V 20 s
MAN
Rated voltage value
selected for the test.
R
insulation
ISO
resistance value
Test duration.
In this case the
START/STOP
key has been
pressed for 20
seconds.
Manual mode.
.
The values of measured resistance of isolation always must be confronted with the
normative limits (see table) for being able to assert if the system is to norm.
SAVE
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
EN - 16
MACROTEST 5035
Ω
Ω
Ω
Ω
Ω
4.2.1.2. Mode "TIMER"
6. Use the following keys to set the duration time of the test:
S▲
Press this key to increase the duration time of the test (Tmax=999 seconds).
UL▼
Press this key to decrease the duration time of the test (Tmin=10 seconds).
START
7. Press the START/STOP key.
STOP
The instrument effects the measurement ending when the set time has elapsed.
999 seconds → Maximum value of the test duration.
10 seconds → Minimum value of the test duration.
Note: Pressing the START/STOP key again the test gets immediately interrupted.
At the end of the test, in case the
resistance value R
to be lower than R
detected results
ISO
(depending on
MAX
the selected voltage see following table)
and the test is effected at the selected
rated voltage value, the instrument
emits a double sound signal indicating
the positive outcome of the test
R
ISO
2.07 MΩ
500 V 20 s
TIMER
Insulation
resistance value
R
ISO.
Duration of the
set test.
Timer mode.
displays one screen similar to the screen
alongside.
Rated voltage value selected for the Timer test.
The values of measured resistance of isolation always must be confronted with the
normative limits for being able to assert if the system is to norm.
SAVE
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
Note: The maximum resistance value R
which can be measured in mode MΩ
MAX
depends on the rated voltage selected for the test. In particular:
Rated voltage selected
for the test
50VDC
100VDC
250VDC
500VDC
1000VDC
R
= Maximum resistance
MAX
value
99.9M
199.9M
499M
999M
1999M
Maximum resistance values measurable under MΩ mode depending on the rated voltage selected.
EN - 17
MACROTEST 5035
p
4.2.2. Special cases which may occur during the tests "MAN", "AUTO", "TIMER"
In case a value of R
R
was detected (depending on the
MAX
selected voltage see following Note
table, the instrument emits a double
sound signal at the end of the test
indicating the positive outcome of the
test and displays one screen similar to
the screen alongside.
Maximum resistance value which can be
measured (999Ω is displayed if a rated voltage of
500V was selected see table).
In case a test is effected at a voltage
lower than the set rated voltage, at
the end of the test the instrument emits
a long sound signal and displays one
screen similar to the screen alongside.
ATTENTION: the test of resistance R
effected at a voltage value lower than the set
rated voltage. Low insulation case. This case
occurs under low insulation conditions or in the
resence of capacity on the installation.
SAVE
If the terminal voltage is higher than
30V, the instrument does not effect the
test, displays the screen alongside for 5
seconds after which, it shows the
default screen relative to the R
under selected mode.
SAVING: The test can be stored pressing the SAVE key twice
higher than
ISO
> 999 MΩ
500 V 20 s
MAN
o0.01 MΩ
500 V 20 s
was
ISO
(according to paragraph 5.1).
test
ISO
MAN
o 33V
VOL AG
R
ISO
The symbol ">"
means that the
resistance value
R
is higher than
ISO
R
MAX
Test duration
Selected mode
MAN
R
ISO
R
ISO
Selected mode
MAN
ATTENTION: the
test was not
carried out.
Check that the
circuit is not
energised.
SAVE
THIS RESULTS CANNOT BE SAVED.
EN - 18
MACROTEST 5035
4.3. RCD RCD : TESTS ON RCDS TYPE A OR AC
The test is effected according to EN 61557-6, EN61008, EN61009, EN60947-2 B 4.2.4
and VDE 0413 part 6.
CAUTION
The automatic check of the RCD features causes the tripping of the RCD itself.
Therefore check that there is no power or load connected downstream the
RCD under test which could be affected by the installation switching off.
Possibly disconnect all the loads connected downstream the RCD as they could
add other leakage currents to the existing ones so making the test results void.
Turn the switch on RCD (RCDS type A sensitive to pulsating
leakage current) or RCD (RCDS type AC sensitive to sine leakage
current) position.
FUNC
Switch on the instrument.
The key FUNC permits to select one of the following measuring modes
(which can be shown cyclically when pressing the key):
Mode MAN x ½ (the instrument effects the test with a leakage current
equal to half the value of the rated current set with a leakage current in
phase with the voltage or a leakage current phase shifted by 180° with
respect to the voltage).
Mode MAN x 1 (the instrument effects the test with a leakage current
equal to once the value of the rated current set with a leakage current in
phase with the voltage or a leakage current phase shifted by 180° with
respect to the voltage).
Mode MAN x 2 (the instrument effects the test with a leakage current
equal to twice the value of the rated current set with a leakage current in
phase with the voltage or a leakage current phase shifted by 180° with
respect to the voltage).
Mode MAN x 5 (the instrument effects the test with a leakage current
equal to five times the value of the rated current set with a leakage
current in phase with the voltage or a leakage current phase shifted by
180° with respect to the voltage)
Mode AUTO (the instrument effects the test automatically with a leakage
current equal to half, once, five times the value of the rated current set
with a leakage current in phase with the voltage or a leakage current
phase shifted by 180° with respect to the voltage). Recommended test.
Mode RAMP (the instrument effects the test with a ramp growing
leakage current, with a leakage current in phase with the voltage or with
a leakage current phase shifted by 180° with respect to the voltage. Use
this test to measure the tripping current)
Mode Ut (the instrument effects the test with a leakage current equal to
half the value of the selected rated current and calculates the contact
voltage as well as the R
earth resistance with a leakage current in phase
a
with the voltage or a leakage current phase shifted by 180° with respect
to the voltage).
EN - 19
MACROTEST 5035
Note: According to standard praxis it is recommended to effect RCD test both with phase
0° and with phase 180°. Therefore the test is to be repeated for both phase valves
of test current. If the RCD under test is of a type (which means sensitive to both
AC and unidirectional pulsing leakage currents) it is advisable to effect the test
both with sine wave and unidirectional pulse current with phase 0° and 180°.
Un/I∆n
DIST
The key U
the RCD (which can be shown cyclically when pressing the key):
permits to select one of the following rated tripping currents of
n/I∆n
10mA.
30mA.
100mA.
300mA.
500mA.
S▲
The key S▲ permits to activate the test for general or selective RCDs:
if the test is effected for selective RCDs the symbol S must be
displayed.
if the test is effected for general RCDs the symbol S must be NOT
displayed.
The option for testing the selective RCDs requires an interval among the
tests of 60 seconds (30 seconds in case of tests at ½ I∆n). A timer is
displayed indicating the waiting time for the instrument to effect the test
automatically.
Example: Test on a RCD with rated current of I∆n=30mA selective
a) the instrument effects the test at ½ I∆n 0°. If the RCD passed
the test, the message “OK” is displayed and the RCD does
not trip.
b) The instrument effects the test at ½ I∆n 180°. If the RCD
passed the test, the message “OK” is displayed and the
RCD does not trip. At this stage 30 seconds elapse before
effecting next test.
c) The instrument effects the test at I∆n 0°. If the RCD passed
the test, the message “OK” is displayed and the RCD trips
and the blinking symbol “rcd” is displayed. The operator
shall switch on the RCD. Anyway after the RCD tripping at
least 60 seconds will elapse before affecting next test
d) The instrument effects the test at I∆n 180°. Follow the same
procedure as described under c)
e) The instrument effects the test at 5I∆n 0°. Follow the same
procedure as described under c).
f) The instrument effects the test at 5I∆n 180°. Follow the same
procedure as described under c). The test is completed
In case of AUTO working mode the operator shall switch the RCD on whenever the
instrument displays the blinking symbol “rcd” signaling the RCD tripping
Note: On selective RCDS it is possible to carry out the following tests ”Man ½ I∆n”, ”Man
1 I∆n”, ”Man 2 I∆n”, ”Man 5 I∆n”, “AUTO”.
EN - 20
MACROTEST 5035
UL▼
The key UL▼ permits to select one of the following limit values for the
contact voltage (which can be shown cyclically when pressing the key):
50V (default)
25V.
CAUTION
The display of “Measuring” means that the instrument is measuring. During
this phase never disconnect test leads.
Note: ”Man 5 I∆n” and “AUTO” test modes aren’t available for RCD type A 500mA.
4.3.1. Measurement procedure for RCD test valid for all the working modes
1. Select the desired mode by means of the FUNC key.
2. Connect the 3 black, blue and green connectors of the three-terminal shuko cable or of th e
single cables to the corresponding input terminals of the instrument B1, B3, B4 (see
possible connections in the pictures below). In case of using untied cables connect the
crocodiles to the free ends of the cables.
L1
L2
L3
N
B2 B3
B1
Instrument connection for 400V + N + PE three-
phase check
L1
L2
L3
N
P
B4
B2 B3
B4B1
Instrument connection for 230V single-phase or
three-phase RCD check
L1
L2
L3
B2
Instrument connection for 400V + N (no PE) three-
phase RCD check
B4B1
B3
B2 B3 B4B1
Instrument connection for 400V + PE (no N)
three-phase RCD check
3. Connect the shuko plug to a 230V 50Hz socket or the crocodile s to the RCD terminals
of the three-phase system (see previous pictures).
EN - 21
MACROTEST 5035
contac
t voltage
4.3.1.1. Mode "MAN x½"
START
4. Press the START/STOP key once. The instrument carries out the
STOP
test injecting a current in phase with positive half wave of the
voltage indicated on display by 0°.
Press the START/STOP key twice. The instrument carries out the
test injecting a current in phase with negative half wave of the
voltage indicated on display by 180°.
If the RCD does NOT trip the
RCD ~
or RCD
instrument emits a double sound
signal indicating the positive
outcome of the test and displays the
screen alongside.
The symbol ">" means that the RCD did not trip.
Indicates if the test was carried out with current
phase 0° or 180° with respect to the voltage.
> 999 ms
OK
Ι∆N 30mA 2 V
x1/2
MAN
0° U
Limit set for the
= 50V
L
OK: indicates that
RCD passed the
test.
Value of contact
voltage U
detected referred
to the rated value
of the RCD
current set.
t
SAVE
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
EN - 22
MACROTEST 5035
4.3.1.2. Mode "MAN x1, x2, x5"
START
4. Press the START/STOP key once. The instrument carries out the
STOP
test injecting a current in phase with positive half wave of the
voltage indicated on display by 0°.
Press the START/STOP key twice. The instrument carries out the
test injecting a current in phase with negative half wave of the
voltage indicated on display by 180°.
NOTE: ”Man 5 I∆n” and “AUTO” test modes aren’t available for RCD type A 500mA.
When the RCD trips if the tripping time
RCD ~
or RCD
is within the limits reported in table, the
instrument emits a double sound
signal indicating the positive
outcome of the test and displays the
screen alongside.
OK: indicates that the RCD passed the test.
It indicates if the test was carried out with current
phase 0° or 180° with respect to the voltage.
40 ms
OK
Ι∆N 30mA 1 V
x1
MAN
0° U
Limit set for the
contact voltage.
t
= 50 V
L
RCD tripping time
Value of contact
voltage U
detected referred
to the rated value
of the RCD
current set.
t
SAVE
SAVING: The test can be stored pressing the SAVE key twice
(according to paragraph 5.1).
4.3.1.3. Mode "AUTO"
START
4. Press the START/STOP key: The instrument carries out the following
STOP
six tests with different values of rated current:
1/2I∆n at 0° (the RCD shall not trip).
1/2I∆n at 180° (the RCD shall not trip).
I∆n at 0° (the RCD trips, blinking rcd, switch it on again).
at 180° (the RCD trips, blinking rcd, switch it on again).
I
∆n
5I
at 0° (the RCD trips, blinking rcd, switch it on again).
∆n
5I∆n at 180° (the RCD trips, end of the test).
In AUTO mode for each positive result (tripping time within the limits
see table) of a single test the following are displayed:
OK test passed.
Blinking rcd switch the RCD on again (if the RCD is not switched on
again the instrument does not proceed with the test).
The test ends if all values of test tripping times fall within the limits
reported in table, or at the first value out of limits.
EN - 23
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