HT EQUITEST 5071 User manual

Copyright HT ITALIA 2013 Versione EN 1.00 - 15/01/2013
EQUITEST 5071
User manual

EQUITEST 5071
EN - 1
Table of contents
1.PRECAUTIONS AND SAFETY MEASURES..................................................................2
1.1.Preliminary instructions......................................................................................................... 2
1.2.During use............................................................................................................................. 3
1.3.After use................................................................................................................................ 3
Definition of measurement (overvoltage) category......................................................................... 3
2.GENERAL DESCRIPTION..............................................................................................4
3.PREPARATION FOR USE..............................................................................................4
3.1.Initial checks.......................................................................................................................... 4
3.2.Instrument power supply.......................................................................................................4
3.3.Calibration............................................................................................................................. 4
3.4.Storage.................................................................................................................................. 4
4.INSTRUMENT DESCRIPTION........................................................................................5
4.1.Front panel............................................................................................................................ 5
4.2.Input and output leads........................................................................................................... 5
4.3.Description of function keys .................................................................................................. 6
4.4.Display description................................................................................................................ 6
4.5.Initial screen.......................................................................................................................... 6
4.6.Backlight................................................................................................................................ 7
5.INITIAL SETTINGS .........................................................................................................7
5.1.Adjusting display contrast...................................................................................................... 7
5.2.Adjusting date and time......................................................................................................... 8
5.3.Language setting................................................................................................................... 8
6.OPERATING INSTRUCTIONS........................................................................................9
6.1.LOW: Continuity of protective conductors with 200mA....................................................... 9
6.1.1.Calibration of measuring cables.................................................................................................. 10
6.1.2.Measuring.................................................................................................................................... 11
6.1.2.1.Anomalous situations in "AUTO", "RT+", "RT-" mode...........................................................................13
6.2.LOW10A: Continuity of protective conductors with 10A................................................... 14
6.2.1.Measuring.................................................................................................................................... 14
6.2.2.Anomalous situations.................................................................................................................. 16
6.3.LOW10AE204: Continuity 10A in compliance with IEC/EN60204-1:2006........................ 17
6.3.1.Measuring.................................................................................................................................... 18
6.3.2.Anomalous situations.................................................................................................................. 20
6.4.LOOP/Ra : Loop impedance, overall earth resistance and phase sequence.................. 21
6.4.1.High-resolution impedance measurement (0.1 m)................................................................... 22
6.4.2."P-N" mode: measurement procedure and results ..................................................................... 22
6.4.3."P-P" mode: measurement procedure and results...................................................................... 24
6.4.4."P-PE" mode: measurement procedure and results................................................................... 25
6.4.5."RA" mode: measurement procedure and results................................................................... 27
6.4.6."" mode: measurement procedure and results ....................................................................... 29
6.4.6.1.Anomalous situations in "P-P", "P-N", "P-PE","RA", " " mode......................................................30
7.OPERATIONS WITH THE MEMORY............................................................................34
7.1.Storage of measurement results......................................................................................... 34
7.2.Recalling and deleting data from the memory..................................................................... 34
8.CONNECTING THE INSTRUMENT TO THE PC..........................................................35
9.MAINTENANCE ............................................................................................................36
9.1.General information............................................................................................................. 36
9.2.Battery replacement............................................................................................................ 36
9.3.Cleaning the instrument ...................................................................................................... 36
9.4.End of life ............................................................................................................................ 36
10.TECHNICAL SPECIFICATIONS.............................................................................37
10.1.Reference standards........................................................................................................... 38
10.2.General characteristics........................................................................................................ 38
10.3.Environmental conditions.................................................................................................... 38
10.4.Accessories......................................................................................................................... 38
11.SERVICE ................................................................................................................39
11.1.Warranty conditions............................................................................................................. 39
11.2.Service ................................................................................................................................ 39

EQUITEST 5071
EN - 2
1. PRECAUTIONS AND SAFETY MEASURES
The instrument has been designed in compliance with Standards IEC/EN61557 and
IEC/EN 61010-1 relevant to electronic measuring instruments.
CAUTION
For your safety and in order to prevent damaging the instrument, please
carefully follow the procedures described in this manual and read all notes
preceded by the symbol with the utmost attention.
Before and after carrying out the 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 contact with the circuit being measured if no measurements are being carried out
Avoid contact with exposed metal parts, unused measuring probes, circuits, etc.
Do not carry out any measurement in case you find anomalies in the instrument such
as deformation, 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 50V in normal
environments, since a risk of electrical shock exists.
Only use original accessories.
In this manual, and on the instrument, the following symbols are used:
CAUTION: observe the instructions given in this manual; improper use could
damage the instrument, its components and create dangerous situations for the
operator.
Presence of dangerous voltage (30V): electrical shock hazard
Double-insulated meter
AC voltage or current
Connection to earth
1.1. PRELIMINARY INSTRUCTIONS
This instrument has been designed for use in environments of pollution degree 2.
The instrument may be used for measuring and verifying the safety of electrical
systems of overvoltage category CAT III 300V (to earth) or CAT II 350V (to earth).
We recommend following the normal safety rules devised to protect the user against
dangerous currents and the instrument against incorrect use.
Only the accessories provided together with the instrument will guarantee safety
standards. If necessary, replace them with identical models.
Do not test circuits exceeding the specified current and voltage limits. Do not perform
any test under environmental conditions exceeding the limits indicated in § 10.3.
Check that the batteries are correctly inserted.
Before connecting the test leads to the circuit to be tested, make sure that the switch is
correctly set.

EQUITEST 5071
EN - 3
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 activating the rotary switch, 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.
1.3. AFTER USE
When measurements are complete, 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 § 9.2.
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 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 inside buildings.
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 standard requires that the transient withstand capability of
the equipment is made known to the user.

EQUITEST 5071
EN - 4
2. GENERAL DESCRIPTION
Instrument EQUITEST 5071 carries out the following measurements:
LOW: Continuity test of protective conductors with test current of 200mA in
compliance with standard IEC/EN61557-4
LOW10A: Continuity test of protective conductors with test current of 10A in
compliance with standard IEC/EN60439-1
LOW10AE60204: Continuity test of protective conductors with test current of 10A in
compliance with standard IEC/EN60204-1:2006.
LOOP/Ra : measurement of line impedance and fault loop impedance with
calculation of the assumed short-circuit current, also with high
resolution (0.1m) with optional accessory IMP57 / measurement of
overall earth resistance without causing the differential protections’
tripping (function RA) / phase rotation.
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 rapidly 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 components indicated in §
10.4. 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 supplied by six 1.5V alkaline batteries type LR6 AA AM3 MN 1500, not
included in the package. For battery installation, follow the instructions given in § 9.2.
CAUTION
The instrument AUTOMATICALLY turns OFF display backlight after
approximately 5 seconds.
In order to extend the battery life, in case battery voltage is too low, the
instrument deactivates display backlighting.
3.3. CALIBRATION
The instrument has the technical specifications described in this manual. Its performance
is guaranteed for 12 months from the date of purchase.
3.4. 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
§ 10.3)

EQUITEST 5071
EN - 5
4. INSTRUMENT DESCRIPTION
4.1. FRONT PANEL
CAPTION:
1. LCD display
2. F1, F2, F3, F4 keys
3. /key
4. START/STOP key
5. HOLD/ENTER key
6. SAVE key
7. ESC key
8. MENU key
9. Rotary selector switch
Fig. 1: Description of the instrument’s front panel
4.2. INPUT AND OUTPUT LEADS
CAPTION:
1. B1, B2, B3, B4 inputs
2. Input for external
230V/50Hz power supply
for functions LOW10A
and LOW10AE60204
3. Optical serial output for
PC connection
Fig. 2: Description of the instrument’s inputs and outputs

EQUITEST 5071
EN - 6
4.3. DESCRIPTION OF FUNCTION KEYS
Key Description
/Key to switch on/off the instrument. Press and hold the key for
some seconds to turn off the instrument. Shortly press this key
to activate display backlighting.
F1, F2, F3, F4 Keys for programming the internal parameters associated with
the functions of the instrument.
START/STOP Key for starting measuring. STOP function not enabled.
SAVE Key for saving measurement results.
HOLD/ENTER ENTER key to confirm the parameters set within the general
menu of the instrument. HOLD function not enabled.
MENU Key to access the instrument’s general menu.
ESC Key to quit the selected mode shown on the display.
4.4. DISPLAY DESCRIPTION
The display is a graphic module with a resolution of 128 x 128 dots. The first line of the
display shows the instrument’s date and time. In the top right-hand corner of the display
there is the battery charge indicator.
LOW30.11.12
----
R+ R-
--------
---mA ---mA
AUTO 0.11
FUNC CAL
For the sake of brevity, these symbols will be omitted in the following screenshots of this
manual.
4.5. INITIAL SCREEN
When turning on the instrument with the /key, the following screen appears for a few
seconds:
HT5071
HT
SN:12345678 V: 1.59
Baud Rate 57600
CALIBRATION DATE:
30.11.12
It contains (further to the name of the Manufacturer and to
the instrument model):
The serial number (SN:) of the instrument.
The firmware version (V:) in the instrument's memory.
The date of the last instrument calibration
(CALIBRATION DATE).
The serial transmission speed (Baud Rate).
Press ESC to exit this screen.

EQUITEST 5071
EN - 7
4.6. BACKLIGHT
During instrument operation, a further short pressing of the /key turns on the display’s
backlighting. In order to save battery efficiency, backlighting automatically turns off after
approx. 5 seconds. A frequent use of backlighting reduces the batteries’ life.
5. INITIAL SETTINGS
When pressing the MENU key, the display shows the following screen, which allows
accessing the General Menu:
GENERAL MENU
SAFETY TEST MEMORY
CONTRAST
DATE&TIME
LANGUAGE

The following items are available:
Safety Test Memory memory area for saving measuring results.
Contrast function to adjust display contrast.
Date&Time function to adjust system date/time.
Language function to select system language.
5.1. ADJUSTING DISPLAY CONTRAST
Proceed as follows:
1. Press the MENU key with the selector switch in any position to enter the General
Menu.
2. Use the F1 key to move the cursor to “CONTRAST”. Confirm with ENTER. The
following screen appears on the display:
CONTRAST
CONTRAST
35%
+ -
3. Use the F3 and F4 keys to set the desired percentage value.
4. Press the ENTER key to confirm. The settings made shall remain valid also after
switching off the instrument.
5. Press the ESC key to exit without saving.

EQUITEST 5071
EN - 8
5.2. ADJUSTING DATE AND TIME
Proceed as follows:
1. Press the MENU key with the selector switch in any position to enter the General
Menu.
2. Use the F1 key to move the cursor to “DATE&TIME”. Confirm with ENTER. The
following screen appears on the display:
DATE&TIME
25 . 08 . 12
15 : 25 : 00
+ -
3. Use the F1 and F2 keys to alternately select the date and time fields. The selected field
appears with a black background. The date is expressed with format: “gg.mm.aa” while
time is expressed in format: “hh:mm:ss”
4. Use the F3 and F4 keys to increase or decrease the value of date/time.
5. Press the ENTER key to confirm. The settings made shall remain valid also after
switching off the instrument.
6. Press the ESC key to exit without saving.
5.3. LANGUAGE SETTING
Proceed as follows:
1. Press the MENU key with the selector switch in any position to enter the General
Menu.
2. Use the F1 key to move the cursor to “LANGUAGE”. Confirm with ENTER. The
following screen appears on the display:
LANGUAGE
ITALIAN
ENGLISH
SPANISH
GERMAN
FRENCH

3. Use the F1 and F2 keys to select the desired language among those available.
4. Press the ENTER key to confirm. The settings made shall remain valid also after
switching off the instrument.
5. Press the ESC key to exit without saving.