HT GSC60, MACROTESTG1, COMBIG3, MACROTESTG3, MACROTESTG2 User Manual
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Copyright HT ITALIA 2017 Release EN 1.02 - 16/05/2017
GSC60
User manual
GSC60
EN - 1
Table of contents:
1. PRECAUTIONS AND SAFETY MEASURES ............................................................... 3
1.1. Preliminary instructions ..................................................................................................... 3
1.2. During use ......................................................................................................................... 4
1.3. After use ............................................................................................................................ 4
1.4. Definition of measurement (overvoltage) category ............................................................ 4
2. GENERAL DESCRIPTION ........................................................................................... 5
2.1. Foreword ........................................................................................................................... 5
3. PREPARATION FOR USE ........................................................................................... 6
3.1. Initial checks ...................................................................................................................... 6
3.2. Instrument power supply ................................................................................................... 6
3.3. Storage .............................................................................................................................. 6
4. NOMENCLATURE ........................................................................................................ 7
4.1. Instrument description ....................................................................................................... 7
4.2. Description of measuring leads ......................................................................................... 7
4.3. Keyboard description ......................................................................................................... 8
4.4. Display description ............................................................................................................ 8
4.5. Initial screen ...................................................................................................................... 8
5. GENERAL MENU ......................................................................................................... 9
5.1. Instrument settings ............................................................................................................ 9
5.1.1. Language ................................................................................................................................. 9
5.1.2. Reference country .................................................................................................................. 10
5.1.3. Automatic Power OFF for display and key sound ................................................................. 10
5.1.4. System ................................................................................................................................... 10
5.1.5. Operator name entry .............................................................................................................. 11
5.1.6. System date/time setting ........................................................................................................ 11
5.2. Information ...................................................................................................................... 11
6. OPERATING INSTRUCTIONS ................................................................................... 12
6.1. RPE: Continuity of protective conductors ........................................................................ 12
6.1.1. Anomalous situations ............................................................................................................. 15
6.2. M: Measurement of insulation resistance ..................................................................... 16
6.2.1. Anomalous situations ............................................................................................................. 19
6.3. RCD: Test on differential switches .................................................................................. 20
6.3.1. AUTO mode ........................................................................................................................... 24
6.3.2. x½, x1, x2, x5 modes ............................................................................................................. 25
6.3.3. Mode x1 – Test on RCDs with delay time .............................................................................. 25
6.3.4. Mode ................................................................................................................................. 26
6.3.5. Test on earth leakage relay RCD .......................................................................................... 27
6.3.6. Anomalous situations ............................................................................................................. 28
6.4. LOOP: Line impedance/Loop and overall earth resistance ............................................. 31
6.4.1. Test types ............................................................................................................................... 33
6.4.2. STD Mode – Generic test ...................................................................................................... 35
6.4.3. Mode kA – Verify of breaking capacity of protection device .................................................. 37
6.4.4. Mode I2t – Verify of protection against short-circuit ............................................................... 39
6.4.5. Mode - Verify of protection coordination ..................................................................... 42
6.4.6. Mode - Verify of protection coordination – Norvay country ......................................... 44
6.4.7. Verify of protection against indirect contacts (TN system) .................................................... 46
6.4.8. Verify of protection against indirect contacts (IT systems) .................................................... 48
6.4.9. Verify of protection against indirect contacts (TT systems) ................................................... 49
6.4.10. Impedance measurement by means of the accessory IMP57 .............................................. 51
6.4.11. Anomalous situations ............................................................................................................. 53
6.5. SEQ: Phase sequence and phase concordance test ...................................................... 55
6.5.1. Anomalous situations ............................................................................................................. 58
6.6. LEAKAGE: Leakage current measurement and recording .............................................. 59
6.7. EARTH: Measurement of earth resistance ...................................................................... 62
6.7.1. 3-wire or 2-wire earth measurement and 4-wire ground resistivity ....................................... 62
6.7.2. 3-wire or 2-wire earth measure – USA, Extra Europe and Germany countries .................... 68
6.7.3. Earth measurement with optional clamp T2100 .................................................................... 71
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6.7.4. Anomalous situations in 3-wire and 2-wire earth measurements .......................................... 74
6.8. AUX: Measure and recording of ambient parameters ..................................................... 75
6.9. ∆V%: Voltage drop of main lines ..................................................................................... 78
6.9.1. Anomalous situations ............................................................................................................. 82
6.10. PQA: Measurement and recording of main parameters .................................................. 84
6.10.1. Connections types ................................................................................................................. 84
6.10.2. General settings ..................................................................................................................... 88
6.10.3. Display of measurements ...................................................................................................... 90
6.10.4. Start recording ....................................................................................................................... 92
6.11. List of message at display ............................................................................................... 94
7. OPERATIONS WITH THE MEMORY ......................................................................... 95
7.1. Saving measurements ..................................................................................................... 95
7.1.1. Saving safety tests and snapshots ........................................................................................ 95
7.1.2. Recall and delete safety measurements and snapshots ....................................................... 96
7.1.3. Recall and delete saved recordings....................................................................................... 97
7.1.4. Anomalous situations ............................................................................................................. 98
8. CONNECTING THE INSTRUMENT TO A PC OR MOBILE DEVICES ...................... 99
8.1. Connection to iOS/Android devices through WiFi ........................................................... 99
9. MAINTENANCE ........................................................................................................ 100
9.1. General information ....................................................................................................... 100
9.2. Recharging and replacement of the batteries ............................................................... 100
9.3. Cleaning the instrument ................................................................................................ 100
9.4. End of life ...................................................................................................................... 100
10. TECHNICAL SPECIFICATIONS ............................................................................... 101
10.1. Technical characteristics safety section ........................................................................ 101
10.2. Technical characteristics PQA section .......................................................................... 105
10.3. Reference guidelines ..................................................................................................... 107
10.4. General characteristics .................................................................................................. 107
10.5. Environment .................................................................................................................. 108
10.5.1. Environmental conditions for use ......................................................................................... 108
10.6. Accessories ................................................................................................................... 108
11. SERVICE .................................................................................................................. 109
11.1. Warranty conditions ....................................................................................................... 109
11.2. Service .......................................................................................................................... 109
12. THEORETICAL APPENDIXES ................................................................................. 110
12.1. Continuity of protective conductors ............................................................................... 110
12.2. Insulation resistance...................................................................................................... 111
12.3. Checking circuit separation ........................................................................................... 112
12.4. Test on differential switches (RCD) ............................................................................... 114
12.5. Verify of the breaking capacity of protection devices .................................................... 115
12.6. Verify of protection against indirect contacts in TN systems ......................................... 116
12.7. Verify of protection against indirect contacts in TT systems ......................................... 118
12.8. Verify of protection against indirect contacts in IT systems ........................................... 119
12.9. Verify of protection coordination L-L, L-N and L-PE ...................................................... 120
12.10. Verify of the protection against short circuits – Test I2t ................................................. 122
12.11. Verification of voltage drop on main lines ...................................................................... 123
12.12. Measurement of earth resistance in TN systems .......................................................... 124
12.13. Voltage Anomalies ........................................................................................................ 129
12.14. Supply voltage unbalance ............................................................................................. 129
12.15. Voltage and current Harmonics ..................................................................................... 130
12.16. Definitions of powers and power factors ....................................................................... 133
12.17. Measuring method: outlines .......................................................................................... 136
12.18. Description of typical configurations .............................................................................. 137
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1. PRECAUTIONS AND SAFETY MEASURES
The instrument is been designed in compliance with directives IEC/EN61557 and
IEC/EN61010-1, relevant to electronic measuring instruments. Before and after carrying
out measurements, carefully observe the following instructions:
Do not carry out any voltage or current measurement in humid environments.
Do not carry out any measurements in case gas, explosive materials or flammables are
present, or in dusty environments.
Avoid any contact with the circuit being measured if no measurements are being
carried out.
Avoid contact with exposed metal parts, with unused measuring probes, etc.
Do not carry out any measurement in case you find anomalies in the instrument such
as deformations, breaks, substance leaks, absence of display on the screen, etc.
Pay special attention when measuring voltages higher than 25V in special
environments (such as construction sites, swimming pools, etc.) and higher than 50V in
normal environments, since a risk of electrical shock exists.
Only use original HT accessories.
The following symbols are used in this manual:
CAUTION: observe the instructions given in this manual; improper use could
damage the instrument, its components or create dangerous situations for the
operator.
High voltage danger: electrical shock hazard.
Double insulation
AC voltage or current
DC voltage or current
Connection to earth
1.1. PRELIMINARY INSTRUCTIONS
This instrument has been designed for use in the environmental conditions specified in
§ 10.5.1. Do not use in different environmental conditions.
The instrument may be used for measuring and verifying the safety of electrical
systems. Do not use on systems exceeding the limit values specified in § 10.4.
We recommend following the normal safety rules devised to protect the user against
dangerous currents and the instrument against incorrect use.
Only the accessories supplied with the instrument (in particular the external adapter
A0060) guarantee compliance with safety standards. They must be in good conditions
and be replaced with identical models, when necessary.
Make sure the batteries are correctly installed.
Before connecting the test leads to the circuit being measured, check that the desired
function has been selected
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1.2. DURING USE
Please carefully read the following recommendations and instructions:
CAUTION
Failure to comply with the caution notes and/or instructions may damage
the instrument and/or its components or be a source of danger for the
operator.
Before changing function, disconnect the test leads from the circuit under test.
When the instrument is connected to the circuit under test, never touch any terminal,
even if unused.
Avoid measuring resistance if external voltages are present. Even if the instrument is
protected, excessive voltage could cause damage.
While measuring current, place the clamp jaws as far as possible from the conductors
not involved in the measurement, as the magnetic field they produce could interfere
with the measuring operations and place the conductor as much as possible in the
center of the jaws to maximize accuracy.
1.3. AFTER USE
When measurements are completed, turn off the instrument by pressing and holding the
ON/OFF key for some seconds. If the instrument is not to be used for a long time, remove
the batteries and follow the instructions given in § 3.3.
1.4. DEFINITION OF MEASUREMENT (OVERVOLTAGE) CATEGORY
Standard "IEC/EN61010-1: Safety requirements for electrical equipment for measurement,
control and laboratory use, Part 1: General requirements” defines what measurement
category, commonly called overvoltage category, is. § 6.7.4: Measured circuits, reads:
circuits are divided into the following measurement categories:
Measurement Category IV is for measurements performed at the source of a 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 on installations inside
buildings.
Examples are measurements on distribution boards, circuit breakers, wiring, including
cables, bus-bars, junction boxes, switches, socket-outlets in 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 standard requires that the transient withstand capability of
the equipment is made known to the user.
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2. GENERAL DESCRIPTION
2.1. FOREWORD
The instrument is equipped with a TFT color LCD display, with capacitive "touch-screen"
that can be handled simply with the touch of a finger by the user and is structured with an
icon-based menu allowing the direct selection of measurement functions for quick and
intuitive use.
The instrument can perform the following tests:
RPE Continuity test of earth, protective and equipotential conductors with test
current higher than 200mA and open-circuit voltage between 4V and 24V
M Measurement of insulation resistance with continuous test voltage of 50V,
100V, 250V, 500V or 1000V DC
RCD Test on molded case RCD (Standard – STD) and on earth leakage relay
RCD ( ) General (G), Selective (S) and Delayed ( ) of type A ( )
and AC ( ) and B ( ) of the following parameters: tripping time,
tripping current, contact voltage
LOOP Measurement of line impedance/Loop P-N, P-P, P-E with calculation of
the assumed short-circuit current, also with high resolution (0.1m) (by
means of optional accessory IMP57), overall earth resistance without
causing the RCD tripping, check of the interruption capacity of
magnetothermal protections (MCB) and fuses, I2t test, protection check
in case of indirect contacts
EARTH Measurement of earth impedance and ground resistivity by
voltammetric method and by an external clamp connected to the
instrument (optional accessory T2100)
SEQ Indication of phase sequence with 2- or 1-terminal method
AUX Measurement and recording of environmental parameters (illuminance, air
temperature, humidity) by means of optional external probes and DC voltage
signals
LEAKAGE Measurement and recording of leakage current (by means of the
optional transducer clamp HT96U)
ΔV% Measurement of percentage voltage drop on main lines
PQA Real-time measurement and recording of mains parameters, harmonic
analysis, voltage anomalies (sags, swells), power/energy consumption
in single-phase and three-phase generic systems
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3. PREPARATION FOR USE
3.1. INITIAL CHECKS
Before shipping, the instrument has been checked from an electric as well as mechanical
point of view. All possible precautions have been taken so that the instrument is delivered
undamaged. However, we recommend checking it to detect any damage possibly suffered
during transport. In case anomalies are found, immediately contact the Dealer.
We also recommend checking that the packaging contains all the components indicated in
§ 10.6. In case of discrepancy, please contact the Dealer. In case the instrument should
be returned, please follow the instructions given in § 11.
3.2. INSTRUMENT POWER SUPPLY
The instrument is powered by 6x1.2V NiMH rechargeable batteries type AA LR06 supplied
with the instrument or by 6x1.5V alkaline batteries type AA LR06. Rechargeable batteries
must be recharged by using the external charger A0060, also provided with the instrument.
The green “ ” symbol indicates a sufficient charge level for the correct performance of the
tests. The red “ ” symbol indicates an insufficient charge level for the correct performance
of the tests. In this case, recharge the batteries (see § 9.2).
CAUTION
If the external adapter is used, it is necessary to connect it first to the
instrument, then to the mains, then please connect the instrument to the
circuit to be tested
The external adapter A0060 can be used both for verification tests
(SAFETY) and for network analyses (PQA)
While recording it is recommended to use both the external adapter and
the rechargeable batteries, in order to guarantee the instrument’s supply
in case of voltage interruption
With low battery indication, stop the tests and recharge or replace the
batteries (see § 9.2)
The instrument is capable of keeping data stored even without batteries
The instrument has an AutoPower OFF function (which can be
deactivated) after 5 minutes’ idling (the Auto Power OFF is inactive while
recording – see § 5.1.3)
3.3. STORAGE
In order to guarantee precise measurement, after a long storage time under extreme
environmental conditions, wait for the instrument to come back to normal condition (see §
10.5.1).
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4. NOMENCLATURE
4.1. INSTRUMENT DESCRIPTION
CAPTION:
1. Inputs
2. LCD Touch screen display
3. Function keys F1, F2, F3, F4
4. ,, , / ENTER keys
5. Compartment of the connector
for optical cable/USB port
6. ESC key
7. GO/STOP key
8. HELP key
9. SAVE key
10. ON/OFF key
Fig. 1: Description of the front part of the instrument
CAPTION:
1. Connector for remote probe
2. B1, B2, B3, B4 inputs
3. I1, I2, I3, I4 inputs
Fig. 2: Description of the upper part of the instrument
CAPTION:
1. Connector for external adapter
2. Connector for optical/USB cable
Fig. 3: Description of the instrument's side
4.2. DESCRIPTION OF MEASURING LEADS
CAPTION:
1. Hand protection
2. Safe area
Fig. 4: Description of measuring leads
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4.3. KEYBOARD DESCRIPTION
The keyboard includes the following keys:
ON/OFF key to switch on/off the instrument
ESC key to exit the selected menu without confirming
keys to move the cursor through the different screens in order
to select the desired programming parameters
HOME / ENTER key to back to general Menu on each moment
GO/STOP key to start the measurement
SAVE key to save the measured values
HELP key to access the online help and display the possible connections
between the instrument and the system for each selected function
F1, F2, F3, F4
Function keys corresponding to the activation of the four icons on the
bottom of the screen as an alternative to direct touch on the display
4.4. DISPLAY DESCRIPTION
The display is an LCD, 320x240pxl TFT color display with
capacitive touch screen whose icon-structure can be directly
selected with a simple touch. The first line of the display
indicates the type of active measurement, the date/time and
the battery charge indication.
4.5. INITIAL SCREEN
When switching on the instrument, the initial screen appears
for a few seconds. It shows:
The HT manufacturer's logo
The instrument model
The Firmware version (LCD and CPU)
The serial number (SN:) of the instrument
The date of instrument calibration (Calibration date:)
After a few seconds, the instrument switches to the general menu.
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5. GENERAL MENU
Pressing the ENTER key in any condition of the instrument allows to go back to the
general menu in which internal parameters may be set, the saved measures can be
displayed and the desired measuring function may be selected.
Fig. 5: General menu of the instrument
Touch the icon to move to the following page of the general menu and the icon
to go back to the previous page. Inside the screens, touch the icon
to confirm a
selection or the icon
to exit without confirming.
5.1. INSTRUMENT SETTINGS
Touch the icon. The screen to the side appears on the
display. The following settings are available:
System language setting
Setting of the type of electrical system
Setting of the country
Operator name setting
System date/time setting
Activation/deactivation of display AutoPower OFF and of
key sound
Settings will be maintained also after switching off the
instrument.
5.1.1. Language
Touch the icon
to select the system language. The
screen to the side appears on the display.
Select the desired language, confirm the choice and return
to the previous screen.
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5.1.2. Reference country
Touch the icon to select the reference country. This
choice have influence on the LOOP and EARTH
measurements (see § 6.4 and § 6.7) as shown in Table 1.
The screen to the side appears on the display.
Select the desired country, confirm the choice and return to
the previous screen
Europe Extra Europe USA Germany Norvay
LOOP
TT Europe mode Europe mode
Not available Europe mode Europe mode
TN Europe mode Europe mode Europe mode Europe mode Norvay mode
IT Europe mode Europe mode Not available Europe mode Norvay mode
EARTH Ra
TT Europe mode
Europe mode Not available Europe mode Europe mode
TN Europe mode USA mode USA mode USA mode Europe mode
IT Europe mode Europe mode Not available Europe mode Europe mode
EARTH
(measure with
T2100)
TT Europe mode
Europe mode Not available Europe mode Europe mode
TN Europe mode USA mode USA mode USA mode Europe mode
IT Europe mode Europe mode Not available Europe mode Europe mode
Table 1: LOOP and EARTH measurements depending on reference countries
5.1.3. Automatic Power OFF for display and key sound
Touch the icon. The screen to the side appears on the
display.
Move the slide bar reference of section " " down/up to
turn off/on the Automatic Power OFF of the instrument after
a period of inactivity of 5 minutes.
Move the slide bar reference of section " " down/up to
disable/enable the sound key when pressed. Confirm the
choices made and go back to the previous screen.
5.1.4. System
Touch the icon
to select the type of electrical system
(TT, TN or IT), of the mains frequency (50Hz, 60Hz), of the
limit value for contact voltage (25V, 50V) and rated voltage
value to be used for calculating the assumed short-circuit
current. The screen to the side appears on the display.
NOTE: for “USA” country this icon is not displayed and
the electrical system is fixed to TN
Move the slide bar references to select the options. Confirm
the choices made and go back to the previous screen.
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5.1.5. Operator name entry
Touch the icon to enter the name of the operator that
will be displayed in the header of each measurement
downloaded to PC. The screen to the side appears on the
display.
Set the desired name using the virtual keyboard (max 12
characters).
Confirm the settings or exit without saving.
5.1.6. System date/time setting
Touch the icon to set the system date/time. The screen
to the side appears on the display.
Touch the "EU" icon for the European date/time system in
the format "DD/MM/YY hh:mm" or the "US" icon for the
American system in the format "MM/DD/YY hh:mm AM/PM".
Touch the up/down arrow keys to set the desired value.
Confirm the settings or exit without saving.
Current date/time is kept inside the instrument without
batteries for approximately 12 hours.
5.2. INFORMATION
Touch the icon . The display shows the screen on the
right with the icons relative to the properties of the
instrument, the optional accessories IMP57 and T2100 and
the HTAnalysis APP
Touch the icon . The display shows the screen on the
right as well as following information:
Serial number
Internal version of Firmare and Hardware (for the
accessories IMP57 and T2100 these informations are
available only after the connection to the instrument)
Last calibration date
Touch the icon . The display shows the screen on the
right with the QR code of HTAnalysis APP (see § 8.1) in
iOS and Android systems. This code permits an easy
access to the Apple Store to download the APP
Touche the icon to exit and return to the general menu
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6. OPERATING INSTRUCTIONS
6.1. RPE: CONTINUITY OF PROTECTIVE CONDUCTORS
This function is performed in compliance with standards IEC/EN61557-4 and allows
measuring the resistance of protective and equipotential conductors.
CAUTION
The instrument can be used for measurements on installations with
overvoltage category CAT IV 300V to earth and max 600V between inputs.
Do not connect the instrument on installations with voltage exceeding the
limits indicated in this manual. Exceeding these limits could cause electrical
shock to the user and damage to the instrument.
We recommend holding the alligator clip respecting the safety area created
by the hand protection (see § 4.2).
Check that no voltage is present at the ends of the item to be tested before
carrying out a continuity test.
The results may be influenced by the presence of auxiliary circuits
connected in parallel with the item to be tested or by transient currents.
The following operating modes are available:
Compensation of the resistance of the cables used for measurement. The
instrument automatically subtracts the value of cable resistance from the
measured resistance value. Therefore, it is necessary that this value is
measured each time the measuring cables are changed or extended.
AUTO The instrument carries out two measurements with inverted polarity and
displays their average value. Recommended mode
The instrument carries out the measurement with the possibility of setting a
duration time for testing. The operator may set a sufficiently long measuring
time (between 1s and 99s) to be able to move the protective conductors while
the instrument is carrying out the test, in order to find out a possible bad
connection.
CAUTION
Continuity test is carried out by supplying a current higher than 200mA
in case the resistance does not exceed ca. 2 (including resistance of
the test cables). For higher resistance values, the instrument carries out
the test with a current lower than 200mA.
Fig. 6: Continuity test by means of single cables and remote lead
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1.
Touch the icon. The screen to the side appears on
the display. The instrument automatically carries out the
test for the presence of voltage between the inputs
(shown on the display) and blocks the test in case of
voltage higher than 10V
Touch the “AUTO” icon to set the measuring mode. The
following screen appears on the display:
2. Move the slide bar reference in the positions "AUTO"
(Automatic mode) or "
" (Timer mode). Confirm the
choice by going back to the previous screen.
If Timer mode is selected, the following screen is shown:
3.
Touch the icon to zero the value in the Timer field
and use the virtual keyboard to set the value in seconds
between 1s and 99s. Confirm the choice by going back to
the initial measurement screen.
4.
Touch the icon "Rxx" to set the maximum limit value of
the resistance on which the instrument makes the
comparison with the measured value. The screen to the
side appears on the display.
Touch the
icon to zero the value in the “R” field.
Use the virtual keyboard to set the value between 1 and
99.
Confirm the choice by going back to the initial
measurement screen. Note the presence of the set limit
value.
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5. Perform, if necessary, the compensation of the measuring leads resistance by
connecting the cables or the remote lead as shown in Fig. 7.
Fig. 7: Compensation of single cables and remote lead resistance
6.
Touch the icon to activate the measurement. After
a few seconds, the instrument provides the screen to the
side if the operation is successful (Rcables 2); the
indication of the value is shown in the "Rcal" field and the
icon is shown on the display.
Touch the "AUTO" icon or " " to go back to the main
measurement screen.
CAUTION
Before connecting the test leads, make sure that there is no voltage at
the ends of the conductor to be tested.
7. Connect the alligator clips and/or test leads and/or remote lead to the conductor to
be tested as in Fig. 6.
CAUTION
Always make sure, before any measurement, that the compensation
resistance value is referred to the cables currently used. In case of
doubt, repeat points 5 and 6.
8.
Press the GO/STOP key on the instrument or the START key on the remote lead.
The instrument will start the measurement. During this whole stage, do not
disconnect the test leads of the instrument from the conductor under test. The
following screen appears on the display:
9. The value of the result is shown in the upper part of the
screen, while the partial values of the test with inverted
polarity of the test source in addition to the real test
currents are reported in the fields "R+" and "R-".
The symbol indicates the positive result of the
measurement.
Press the SAVE button or touch the icon to save the
measurement (see § 7.1).
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10. At the end of the test, if the value of the measured
resistance is higher than the set limit, the screen to the
side is shown on the display.
The value is shown in red and the symbol indicates
the negative result of the measurement. The "> 99.9"
message indicates the instrument overload status.
Press the SAVE button or touch the icon to save the
measurement (see § 7.1).
6.1.1. Anomalous situations
1.
In AUTO or " " modes if the instrument detects a
resistance lower than the set limit value but for which is it
not able to generate a current of 200mA, the screen to
the side is displayed.
The symbol is shown on the display and the values of
the real test current are indicated in red.
2. If in mode the instrument detects a resistance
higher than 2 at its terminals, it resets the offset value
and displays a screen like the one to the side. The
icon is shown on the display to indicate the calibration
reset value (i.e. performing the operation with open
terminals).
3. In case the instrument detects that the calibrated
resistance is higher that the measured resistance, the
instrument gives out a long sound and displays a screen
like the one to the side. The icon is shown on the
display to indicate the calibration reset value.
4. If the instrument detects a voltage value higher than
approx. 10V at its terminals, it does not carry out the test,
gives out a long sound and the screen reported here to
the side is displayed
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6.2. M: MEASUREMENT OF INSULATION RESISTANCE
This function is performed in compliance with standards IEC/EN61557-2 and allows
measuring the insulation resistance between the active conductors and between each
active conductor and the earth.
CAUTION
The instrument can be used for measurements on installations with
overvoltage category CAT IV 300V to earth and max 600V between inputs.
Do not connect the instrument on installations with voltage exceeding the
limits indicated in this manual. Exceeding these limits could cause electrical
shock to the user and damage to the instrument.
We recommend holding the alligator clip respecting the safety area created
by the hand protection (see § 4.2).
Check that the circuit being tested is not live and that all possible loads
normally connected to it are disconnected before carrying out insulation
measurement.
The following operating modes are available:
AUTO The test is activated by the GO/STOP key of the instrument (or START of the
remote lead). The instrument automatically detects the presence of possible
capacitance and waits until test nominal voltage is reached (typically approx. 2
seconds). Recommended mode
The operator may set a sufficiently long measuring time (1s 999s) to be able
to move the test lead on the conductors being tested, while the instrument is
carrying out the test. For the whole measurement duration, the instrument will
give out a short sound every second. While measuring, if the insulation
resistance reaches a lower value than the set limit, the instrument will give a
continuous acoustic signal. To stop the test, press again the GO/STOP key on
the instrument or the START key on the remote lead. At the end of test, the
lowest value of insulation (worst case) detected during the test will be shown by
the instrument
Fig. 8: Insulation test by means of single cables and remote lead
Fig. 9: Insulation test by means of shuko plug
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1.
Touch the icon. The screen to the side appears
on the display. The instrument automatically carries out
the test for the presence of voltage between the inputs
(shown on the display) and blocks the test in case of
voltage higher than approx. 10V
Touch the “AUTO” icon to set the measuring mode. The
following screen appears on the display:
2. Move the slide bar reference in the positions "AUTO"
(Automatic mode) or " " (Timer mode). Confirm the
choice by going back to the previous screen.
If Timer mode is selected, the following screen is
shown:
3.
Touch the icon to zero the value in the Timer field
and use the virtual keyboard to set the value in seconds
between 1s and 999s. Confirm the choice by going
back to the initial measurement screen.
4.
Touch the icon "Rxx" to set the minimum limit value
of the insulation resistance on which the instrument
makes the comparison with the measured value. The
screen to the side appears on the display.
Touch the
icon to zero the value in the “R” field.
Use the virtual keyboard to set the value between
0.01M and 999M.
Confirm the choice by going back to the initial
measurement screen. Note the presence of the set limit
value.
5. Touch the "xxxxV" icon to set the test DC voltage in the
insulation measurement. The screen to the side
appears on the display.
Move the slide bar reference to the desired value for
test voltage by choosing among 50, 100, 250, 500,
1000VDC.
Confirm the choice by going back to the initial
measurement screen. Note the presence of the set limit
value.
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CAUTION
Disconnect any cable not strictly involved in measurement and especially
check that no cable is connected to In1 input.
Before connecting the test leads, make sure that there is no voltage at the
ends of the conductors to be tested.
6. Connect the alligator clips and/or test leads and/or remote lead to the ends of the
conductors to be tested as in Fig. 8 and Fig. 9.
7.
Press the GO/STOP key on the instrument or the START key on the remote lead. The
instrument will start the measurement.
CAUTION
During this whole stage, do not disconnect the test leads of the instrument
from the conductor under test. It could remain charged with a dangerous
voltage due to the stray capacitances in the circuit being tested.
8. Regardless of the operating mode selected, at the end of the measurement, the
instrument applies a resistance to the output leads to discharge the capacitances in the
circuit.
9.
In mode:
The final result is the minimum insulation value measured during the test
Pressing a second time the GO/STOP key or the START key on the remote lead
stops the test before the set time has elapsed.
10. The measurement result is shown both as a numeric
value and in the analog bar graph as shown in the
screen to the side. The values of the real test voltage
and the measurement time are present on the display.
The symbol indicates the positive result of the
measurement.
Press the SAVE button or touch the
icon to save
the measurement (see § 7.1).
11. At the end of the test, if the value of the measured
resistance is lower than the set limit, the screen to the
side is shown on the display.
The value is shown in red and the symbol indicates
the negative result of the measurement.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
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6.2.1. Anomalous situations
1. If the instrument measures a resistance higher than
the set limit value but for which it is not able to generate
the rated voltage, the screen to the side is displayed.
The symbol is shown on the display and the values
of the real test voltage are indicated in red.
2. If the instrument detects a voltage value higher than
approx. 10V at its terminals, it does not carry out the
test, gives out a long sound and the screen reported
here to the side is displayed.
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6.3. RCD: TEST ON DIFFERENTIAL SWITCHES
This function is performed in compliance with standard IEC/EN61557-6 and allows
measuring the tripping time and current of molded case differential switches of type A ( ),
AC ( ) and B ( ), being General (G), Selective (S) and Delayed ( ). The instrument
allows performing tests on earth leakage relay RCDs with currents up to 10A (with optional
accessory RCDX10).
CAUTION
The instrument can be used for measurements on installations with
overvoltage category CAT IV 300V to earth and max 600V between inputs.
Do not connect the instrument on installations with voltage exceeding the
limits indicated in this manual. Exceeding these limits could cause electrical
shock to the user and damage to the instrument.
Always connect the measuring cables to the instrument and to the alligator
clips with the accessories disconnected from the system
We recommend holding the alligator clip respecting the safety area created
by the hand protection (see § 4.2).
CAUTION
Some combinations of test parameters can be not available in compliance with
the technical specification of the instrument and the RCD tables (see § 10.1 –
the empty cells of RCD tables means not available situations)
The following operating connections are available to perforn the RCD test:
CAUTION
Testing the RCD tripping time causes its tripping. Therefore, check that there
are NO users or loads connected downstream of the differential switch
being tested which could be damaged by a system downtime.
Disconnect all loads connected downstream of the differential switch as they
could produce leakage currents further to those produced by the instrument,
thus invalidating the results of the test.
Fig. 10: Connection for single-phase 230V
system by means of shuko plug
Fig. 11: Connection for double-phase
230V with no neutral (no RCD B type)
Fig. 12: Connection for single-phase 230V system with single cables and remote lead
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Fig. 13: Connection for a 400V + N + PE by means of single cables and remote lead
Fig. 14: Connection for a 400V + N (no PE), single cables, remote lead (no RCD B type)
Fig. 15: Connection for a 400V + PE (no N) single cables, remote lead (no RCD B type)
Fig. 16: Connection to earth leakage relay RCDs with optional accessory RCDX10
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1. Select the options “TN, TT or “IT”, “25 or 50V”,
“50Hz or 60Hz” and the reference voltage in the
general settings of the instrument (see § 5.1.4).
Touch the icon. The screen to the side
appears on the display. Touch the icon to the left to
set the RCD operating mode. The following screen
appears on the display:
2. Move the slide bar reference by selecting the
desired operating mode between the options: G
(General), S (Selective), (Delayed). Confirm the
choice by going back to the initial measurement
screen. Note the presence of the chosen selection.
When selecting a Delayed RCD, the instrument
displays the following screen.
3.
Touch the icon to zero the value in the Timer
field and use the virtual keyboard to set the value
of RCD delay time in seconds between 1ms and
500ms. Confirm the choice by going back to the
initial measurement screen. Touch the second icon
to set the type of RCD, the waveform and the
tripping current. The following screen appears on
the display.
4. Move the left slide bar reference and select the
type of RCD between the following options: STD
(molded case RCD) and “ ” (earth leakage
delay RCD with use of optional accessory
RCDX10). In case of earth leakage relay RCD the
following screen appears on the display
5.
Touch the icon
to zero the value in “A” field and
use the virtual keyboard to set the value of rated
current of earth leakage relay RCD. The maximum
rated current is 10.0A. Confirm the choice by going
back to the previous screen.
Move the second slide bar reference by selecting
the waveform of the differential switch between the
options:
(type AC), (type A), (type B).
For RCD of molded case type STD move the third
slide bar reference by selecting the desired rated
current of the differential switch between the
options: 10, 30, 100, 300, 500, 650, 1000mA
Confirm the choice by going back to the initial
measurement screen. Note the presence of the
chosen selections
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6. Touch the third icon at the bottom of display and
select the desired type of test among the options::
x ½ Manual with multiplier ½ Idn
x 1 Manual with multiplier 1Idn
x 2 Manual with multiplier 2Idn
x 5 Manual with multiplier 5Idn
AUTO Auto mode (6 tests in sequence)
Ramp (real tripping current measurement)
Move the right slide bar reference by selecting the
polarity of the test current between the options: 0°
(direct polarity), 180° (inverted polarity), 0°-180°
(for Automatic mode only). Move the lower right
slide bar reference by selecting (for Ramp mode
only) the kind of the trip out current visualization
between the followed options:
NOM the instrument shows the normalized
value of trip out current (referred to the nominal
current). Example: for RCD type A with
Idn=30mA the effective value of normalized trip
out current can be up to 30mA
REAL the instrument shows the effective
value of the trip out current by considering the
coefficients indicated by the IEC/EN61008 and
IEC/EN61009 guidelines (1.414 for RCD type
A, 1 for RCD type AC, 2 for RCD type B).
Example: for RCD type A with Idn=30mA the
effective value of trip out current can be up to
30mA * 1.414 = 42mA
NOTE: The selection of the two option involves
only the choose of the trip out current
visualization but not influence the outcome
test (OK/NO)
Confirm the choice by going back to the initial
measurement screen
7. Touch the fourth icon at the bottom of the display
and select the possible visualization of the contact
voltage value at the end of measurement. The
following options are possible:
The value of contact voltage is shown on
the display at the end of measurement (the test
time will be slightly longer)
The value of contact voltage is not
shown on the display at the end of
measurement. The symbol “- - -“ is shown
8. Insert the green, blue and black connectors of the three-pin shuko plug into the
relevant instrument input terminals B3, B4, B1. As an alternative, use the single cables
and apply the relevant alligator clips to the free ends of the cables. It is also possible to
use the remote lead by inserting its multipolar connector into the input lead B1.
Connect the shuko plug, the alligator clips or the remote lead to the electrical mains
according to Fig. 10, Fig. 12, Fig. 13, Fig. 14 and Fig. 15.
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6.3.1. AUTO mode
9.
Press the GO/STOP key for 2s on the instrument or the
START key on the remote lead. The instrument will
start the measurement.
The screen to the side is shown on the display when
the icon indicates the performance of the test.
10 The AUTO mode foresees the automatic execution of 6
measurements in a sequence:
IdN x 1 with phase 0° (the RCD must trip,reset the
switch, icon )
IdN x 1 with phase 180° (the RCD must trip,reset
the switch, icon )
IdN x 5 with phase 0° (the RCD must trip,reset the
switch, icon )
IdN x 5 with phase 180° (the RCD must trip,reset
the switch, icon )
IdN x½ with phase 0° (RCD must not trip)
IdN x½ with phase 180° (RCD must not trip, end of
test)
11
The test has a positive result if all tripping times of molded case type STD comply with
what indicated in Table 4 (see § 12.4). The test has a negative result when one of the
values is out of range. During this whole stage, do not disconnect the measuring leads
of the instrument from the system on test.
12 At the end of the test, if the tripping time of each test
complies with what is indicated in Table 4 (see § 12.4)
the instrument shows the symbol to signal that the
test has been completed successfully, and displays a
screen similar to the one reported here to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
13 At the end of the test, if the tripping time of a test does
not comply with what is indicated in Table 4 (see §
12.4). the instrument shows the
symbol to signal
that the test has not been completed successfully, and
displays a screen similar to the one reported here to the
side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
CAUTION
A
ccording to standard EN61008, the test for Selective differential switches
requires an interval of 60 seconds between the tests (30s for tests with ½ Idn).
The instrument display shows a timer indicating the time remaining before the
instrument can automatically perform the test.
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6.3.2. x½, x1, x2, x5 modes
9.
Press the GO/STOP key for 2s on the instrument or the
START key on the remote lead. The instrument will
start the measurement.
The screen to the side (concerning multiplier x1) is
shown on the display when the icon indicates the
performance of the test.
10
At the end of the test with multiplier x1/2, x1, x2 or x5 if
the tripping time, for molded case type STD, is as
listed in Table 4
the instrument shows the symbol to signal that the
test has been completed successfully, and displays a
screen similar to the one reported here to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
11
At the end of the test, for molded case type STD, if the
tripping time of a test does not comply with what is
indicated in Table 4the instrument shows the
symbol to signal that the test has not been completed
successfully, and displays a screen similar to the one
reported here to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
6.3.3. Mode x1 – Test on RCDs with delay time
9. At the end of the test, if the measured tripping time is
within the interval: [limit delay = set delay time +
value indicated in Table 4] the instrument displays
the
symbol to indicate the positive outcome of the
test and displays a screen like the one to the side.
Press the SAVE button or touch the
icon to save
the measurement (see § 7.1).
10 At the end of the test, if the measured tripping time is
external the interval: [limit delay = set delay time +
value indicated in Table 4] the instrument displays
the symbol to indicate the negative outcome of the
test and displays a screen like the one to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1)
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6.3.4. Mode
The standard defines, for molded case type STD, the tripping times for RCDs at nominal
current. The mode is used to detect the minimum tripping current (which could also be
lower than the nominal voltage).
9.
Press the GO/STOP key for 2s on the instrument or the
START key on the remote lead. The instrument will
start the measurement.
The screen to the side is shown on the display when
the hourglass icon indicates the performance of the
test.
10 At the end of the test, if the tripping current is within the
values of the table in the relevant §, the instrument
displays the
symbol to indicate the positive
outcome of the test and displays a screen like the one
to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
11 At the end of the test, if the tripping current is not within
the values of the table in the relevant §, the instrument
displays the symbol to indicate the negative
outcome of the test and displays a screen like the one
to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1).
12
For RCD type A and B it is possible to have a positive
outcome also if the result is higher then the selected
nominal current. This is due to the “REAL” option
visualization selected (see § 6.3 – point 6)
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6.3.5. Test on earth leakage relay RCD
The instrument allows performing tests on earth leakage relay RCD with currents up to
10A (with optional accessory RCDX10)
8. Connect the instrument and the optional accessory RCDX10 to the installation (see Fig.
16). Pay attention to the connection of cables “1” and “2” of the RCDX10 accessory
and to the direction of the current indicated by the arrow printed on the accessory. It is
also possible to use the remote lead by inserting its multipolar connector into input lead
B1
9.
Press the GO/STOP key for 2s on the instrument or the
START key on the remote lead. The instrument will
start the measurement.
The screen to the side is shown on the display when
the hourglass icon indicates the performance of the
test.
10 At the end of the test, if the tripping current is lower to
the set value, the instrument displays the symbol to
indicate the positive outcome of the test and displays a
screen like the one to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1)
11 At the end of the test, if the tripping current is higher to
the set value, the instrument displays the symbol to
indicate the negative outcome of the test and displays a
screen like the one to the side.
Press the SAVE button or touch the icon to save
the measurement (see § 7.1)
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6.3.6. Anomalous situations
1. If the voltage between inputs B1 and B4 and inputs B1
and B3 is higher than 265V, the instrument provides the
warning screen shown to the side and blocks the
execution of the tests.
2. If the voltage between inputs B1 and B4 and inputs B1
and B3 is lower than 100V, the instrument provides the
warning screen shown to the side and blocks the
execution of the tests.
3. If the instrument detects the absence of the signal to
terminal B1 (phase conductor), it provides the warning
screen shown to the side and blocks the execution of
the tests.
4. If the instrument detects the absence of the signal to
terminal B4 (neutral conductor), it provides the warning
screen shown to the side and blocks the execution of
the tests.
5. If the instrument detects the absence of the signal to
terminal B3 (PE conductor), it provides the warning
screen shown to the side and blocks the execution of
the tests.
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