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ELECTRICIAN’S TESTER VR2230
INSTALLATION TESTER VR2240
MULTIFUNCTION TEST INSTRUMENTS
USER INSTRUCTION MANUAL
1
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:
Index
1. SAFETY PRECAUTIONS AND PROCEDURES....................................................................4
1.1. Preliminary instructions...........................................................................................................4
1.2. During use
1.3. After use .................................................................................................................................5
2. GENERAL DESCRIPTION.....................................................................................................6
2.1. Instrument description ............................................................................................................8
3. PREPARATION FOR USE...................................................................................................10
3.1. Initial quality checks..............................................................................................................10
3.2. Power suppply ......................................................................................................................10
3.3. Battery Replacement ............................................................................................................10
3.4. Calibration ............................................................................................................................10
3.5. Storage.................................................................................................................................10
4. DESCRIPTION OF THE ROTARY SWITCH FUNCTIONS ..................................................11
4.1. LOWΩ: Continuity test of earth, potective and equalising potential conductors..........11
4.1.1. "CAL" mode ..........................................................................................................................12
4.1.2. Procedure to measure continuity of equalising potential conductors ....................................14
mode "AUTO", "R+", "R-", "R+TIMER", "R-TIMER"
4.1.3. Other Error Screens "AUTO", "R+", "R-", "R+TIMER", "R-TIMER" tests...............................16
4.2. MΩ: Insulation resistance measurement with the test voltage of 50V, 100V, 250V, 500V
OR 1000V ............................................................................................................................18
4.2.1. Procedure to measure insulation resistance in any mode.....................................................19
4.2.2. Special cases which may occur during the tests "MAN", "AUTO", "TIMER"..........................23
4.3. RCD
4.3.1. Procedure for RCD testing....................................................................................................27
4.3.2. Tripping times for general and selective RCDS ....................................................................33
4.3.3. Other situations which may occur during RCD tests in any working mode............................34
4.4. Loop ZS /IK: measurement of line impedance E, Fault loop impedance
and calculation of prospective short and fault circuit current........................................38
4.4.1. "P-N" mode ..........................................................................................................................39
4.4.2. "P-P" mode ..........................................................................................................................41
4.4.3. "P-PE" mode ........................................................................................................................42
4.4.4. Other situations which may occur during loop, ZS/IK tests in any working mode..................44
4.5. R
15mA current and calculation of prospective fault current (PFC) ..................................47
4.5.1. Other situations which may occur during R
4.6. Phase Sequence Rotation
4.6.1. Procedure for Phase Sequence testing ................................................................................52
4.6.2. Other situations which may occur during Phase Sequence tests..........................................54
5. HOW TO SAVE, RECALL AND CLEAR DATA STORED IN MEMORY (VR2240 Only).....55
5.1. SAVE: "SAVE" KEY..............................................................................................................55
5.2. RECALL: "RCL" KEY............................................................................................................56
5.3. CLEAR: "CLR" KEY..............................................................................................................57
RCD : tests on RCDS type A OR AC ...................................................24
a15mA : measurement of earth resistance with
A15MA tests...................................................49
.............................................................................................52
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6. RESETTING THE INSTRUMENT AND DEFAULT PARAMETERS.....................................59
6.1. Reset Procedure...................................................................................................................59
6.2. Default Parameters...............................................................................................................59
7. CONNECTION TO A PC (VR2240 ONLY)...........................................................................60
8. PRINTING WITH AN OPTIONAL SERIAL PRINTER (VR2240 ONLY) ...............................61
9. ACCESSORIES & MAINTENANCE…….……………………………………..…………………62
10. TECHNICAL SPECIFICATIONS..........................................................................................63
10.1. Technical features ................................................................................................................63
10.1.1. Safety standards...................................................................................................................65
10.1.2. General specifications ..........................................................................................................65
10.2. Environment .........................................................................................................................66
10.2.1. Environmental working conditions ........................................................................................66
10.2.2. EMC .....................................................................................................................................66
11. SERVICE..............................................................................................................................67
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1. SAFETY PRECAUTIONS AND PROCEDURES
This tester conforms with safety standards BSEN61557 and BSEN 61010-1 relating to
electronic measuring instruments.
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
Adhere strictly to the following instructions before and during measurements:
) Do not take measurements in wet environments.
) Do not perform measurements in environments with explosive gas, fuels or dust.
) Do not touch the object under test whilst taking measurements.
) Avoid any contact with exposed metal parts, ends of test leads not in use, circuits, etc.
) Do not perform any measurements if the instrument is damaged eg: cracked case,
leakage of batteries, absence of display reading etc.
) Pay careful attention when using test voltages exceeding 25V in places such as
building sites, swimming pools, and damp environments etc. and 50V elsewhere
due to the risk of electric shock.
The following symbols are used in this manual:
Caution: refer to the instructions in this manual; improper use may
AC Voltage or Current.
Unidirectional pulsating Voltage or Current.
Rotary switch of the instrument.
damage the tester or its components.
1.1. PRELIMINARY INSTRUCTIONS
) This instrument has been designed for use in environments with 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 practices aimed at:
9 Protecting you against dangerous currents.
9 Protecting the instrument against improper use.
) Only the leads supplied with the instrument guarantee compliance with safety standards.
They must be in good condition and must be replaced if necessary, with identical models.
) Do not perform measurements on circuits exceeding the specified voltage limits.
) Do not perform any measurement under environmental conditions beyond the limits
specified in this manual.
) Check that batteries have been inserted 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.
WARNING
.
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1.2. DURING USE
Read carefully the following recommendations and instructions:
WARNING
Non-compliance with the Warnings and/or Instructions may damage the
apparatus and/or its components or seriously injure the operator
.
) Before selecting any function disconnect the test leads from the circuit under test.
) When the instrument is connected to a circuit, do not touch any test lead which is
not being used.
) Do not carry out resistance measurements in the presence of external voltages:
even though the instrument is protected, too high a voltage may cause damage.
If the symbol is displayed during use, stop testing and replace batteries
The instrument remembers stored data even when batteries are not
installed.
WARNING
1.3. AFTER USE
) When the measurements are completed disconnect the test leads from the
circuit under test and switch OFF the instrument.
) Remove batteries when the instrument is to be unused for long periods.
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2. GENERAL DESCRIPTION
This all-in-one tester incorporates continuity, insulation resistance, RCD, earth loop
impedance, phase loop impedances, earth resistance and phase rotation tests.
This unit is smaller and more compact than other machines on the market, which
makes them very comfortable to use in confined and hazardous areas.
The unit can be held comfortably in one hand.
*The Veritest VR2240 can store test results in its internal memory and then download
them to a P.C. via optional software and accessories.
The Veritest is supplied complete with test leads, a protective carry case and user
guide as standard.
Your new instrument will give you accurate and reliable measurements provided
that it is used properly.
These instruments have been designed to give the user the highest level of safety
possible thanks to their innovative design assuring double insulation and over voltage
category III.
) LOWΩ: Continuity test of earth, protective and equalizing potential conductors with
) R
) RCD
* VR2240 only
test current higher than 200mA and open circuit voltage ranging from 4V to 24V.
: Measurement of insulation resistance with DC test voltage at 50V*,
ISO
100V*, 250V, 500V or 1000V.
: Measurement on general and/or selective RCDs AC type ( ) of the
following parameters:
9 Tripping time.
9 Tripping current.
9 Contact voltage (U
9 Overall earth resistance (R
In this mode the instrument can measure the overall earth resistance
).
t
).
a
without causing RCD’s to trip
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) RCD
) LOOP Z
) R
a15mA
)
: Measurement on general and/or selective RCDs A type ( )
of the following parameters:
9 Tripping time.
9 Tripping current.
9 Contact voltage (U
9 Overall earth resistance (R
In this mode the instrument can measure the overall earth
).
t
).
a
resistance without causing RCD’s to trip.
: Measurement of line and fault loop impedance with calculation of
S/IK
prospective short circuit current.
: Measurement of fault loop impedance between earth and phase
conductors with current of 15mA and calculation of prospective
short circuit current.
: Indication of phase rotation sequence.
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/
/
V
V
2.1. INSTRUMENT DESCRIPTION
U
n
FUNC
Rotary
switch :
Rotate to
select the
function
U
n
FUNC
VERITEST VR2240
I
∆n
R2240
S ▲
UL ▼
START
DISPLAY
DISP
OFF
VERITEST VR2230
I
∆n
GO
STOP
CLR
ESC
ESC
CLEAR
SAVE
RCL
RECALL
SAVE
R2230
S ▲
UL ▼
START
DISP
DISPLAY
GO
STOP
ESC
CLEAR
RECALL
SAVE
Rotary
switch:
Rotate to
select the
function
OFF
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Description of controls
FUNC
) Multifunction key to select measuring modes.
Un/I
) Key for selection of differential currents during tests of RCDs or rated
∆n
voltages during tests of insulation resistance (depends on the selected
measurement) with the rotary switch.
S ▲
) Key for selection of RCD type (General or Selective) or to increase the
test duration interval or to scroll through the results of the stored tests.
UL ▼
) Key for selection of contact voltage limit or to decrease the test duration
interval or to scroll through the results of the stored tests.
GO
) Key to start or to stop tests.
*
ESC
) *Key to quit the function of selected mode
*
SAVE
) *Key to save tests
*
RCL
) *Key to recall stored tests
DISP
) Key to scroll between single and multiple test results
(Eg: RCD auto) which have been stored.
*
CLR
) *Key to delete the stored tests
* VR2240 only
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3. PREPARATION FOR USE
3.1. INITIAL QUALITY CHECKS
This instrument has been checked mechanically and electrically prior to shipment.
Every care has been taken to ensure that the instrument reaches you in perfect condition.
In the unlikely event that you have to send the instrument back to us, please follow the
instructions detailed in section 11.
3.2. POWER SUPPLY
This instrument is supplied with six batteries model 1.5V – LR6 – AA – AM3 – MN 1500
included as standard
3.3. BATTERY REPLACEMENT
When the symbol
1. Switch OFF the instrument.
2. Remove all of the test leads from the input terminals.
3. Unscrew the fixing screws from the battery compartment cover and remove it.
4. Remove all batteries replacing them with 6x of the same type
(1.5V – LR6 – AA – AM3 – MN 1500) observing correct polarity.
5. Fix the screws on the battery compartment cover.
3.4. CALIBRATION
This Instrument is shipped to you manufactured within the specification shown in
section 10 of this manual. Performance within the specification is guaranteed for
one year. Annual re-calibration is recommended. A Calibration certificate for this
instrument is available as a chargeable extra and is not supplied as standard.
Please contact us on 01923 441717 for more details.
3.5. STORAGE
In order to ensure the accuracy of measurements, after a period of storage
in extreme environmental conditions, wait for the instrument to acclimatize
back to normal measuring conditions (see environmental specifications listed
in paragraph 10.2.1).
is displayed the batteries should be replaced.
WARNING
Before replacing batteries make sure that all test leads have been disconnected
from input terminals. The VR2240 is capable of storing data when batteries
are removed
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4. DESCRIPTION OF THE ROTARY SWITCH FUNCTIONS
4.1. LOWΩ: CONTINUITY TEST OF EARTH, PROTECTIVE AND EQUALIZING
POTENTIAL CONDUCTORS
The measurement is performed with a test current higher than 200mA and open circuit
voltage ranging from 4 to 24V DC according to BSEN 61557-4 and VDE 0413 part 4.
Before carrying out the continuity test make sure that there is no voltage
at the ends of the conductors under test
Turn the switch to the LOWΩ position.
FUNC
FUNC key is used to select one of the following measuring modes
(which can be shown in rotation when pressing the key):
) AUTO Mode (the instrument carries out two measurements one with
positive polarity R+ and one with negative polarity R-, and displays their
average value R
avg
) R + Mode (measurement with positive polarity, red cable will be
positive polarity and black cable will be negative polarity).
) R - Mode (measurement with negative polarity, black cable will be
positive polarity and red cable will be negative polarity).
) R + TIMER Mode (measurement with positive polarity with adjustable
test duration). The operator can set a measuring time long enough to
permit them to move the conductors while the instrument is carrying
out the test so detecting bad connections.
) R - TIMER Mode (measurement with negative polarity with adjustable
test duration). In this case the operator can set a measuring time long
enough to permit them to move the protective conductors while the
instrument is carrying out the test so detecting bad connections.
) CAL Mode (compensation for the resistance of the test leads).
If the resistance is lower than 16Ω (including the resistance of the leads) the
Note:
continuity test is performed with a current higher than 200mA. If the resistance
is higher than 16Ω the continuity test is performed with a current of 40mA.
WARNING
.
). This mode is recommended for the continuity test.
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g
4.1.1. "CAL" MODE
1. Select CAL mode with the FUNC key.
2. Connect the Red and Black cables to the instrument input terminals P and N respectively:
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Red
Black
Linking of instrument terminals during calibration procedure.
3. Connect the crocodile clips to the cable terminals.
4. Short-circuit the measuring cable ends making sure that the conductive parts of the
crocodile clips make good contact with each other (see picture).
5. Press the GO key. The instrument carries out the calibration.
GO
)
At the end of the test
the result is stored and
used as an OFFSET (it
is subtracted from
any continuity test
carried out) for all
subsequent
measurements until a
new calibration is
CAL LOWΩ
0.00Ω
203 mA
carried out.
This screen is displayed for only 2 seconds
then the instrument beeps twice (indicating
that the calibration is completed) and displays
the default screen for the LOWΩ test under
AUTO mode.
CAL:
indicates that the
instrument has a
stored value for
the resistance of
the test leads; this
symbol remains
on the display
for any further
measurements
even when the
unit is switched
off and on a
Current supplied
by the instrument
during the
calibration
procedure.
: The instrument compensates for leads with resistance below 5Ω.
Note
ain.
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p
LEADS USED FOR THE TEST
Before any measurement always make sure that
the unit has been calibrated with the test leads in
use. During a continuity test, if the resistance
value measured is less the calibration offset value
stored, the symbol
blinking “CAL” (see 4
is displayed as well as
th
screen in paragraph 4.1.3).
This indicates that the calibration stored in the
instrument memory may be for leads other than
those in use, so a new calibration is required.
Never disconnect the test leads while “Measuring” is displayed.
4.1.1.1. Procedure to remove stored calibration and cal symbol
To remove a stored calibration (and the
symbol CAL) you need to perform a
calibration procedure with a resistance
higher than 5Ω
(for Example with
disconnected test leads). When this
procedure is carried out the screen
opposite is displayed first, followed by the
screen below:
LOWΩ
>5.00Ω
cal
Measuring
The screen opposite is displayed for 2
seconds, after which the instrument emits a
long sound signal and then displays the
default screen for the LOWΩ test under
AUTO mode without displaying the symbol
CAL.
LOWΩ
es
cal
>5Ω: Indicates
that the
instrument
measured a
resistance higher
than 5Ω so it will
proceed with
reset
rocedure.
rES: Indicates
that the
instrument
removed
(RESET) the
stored calibration
& cal symbol
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4.1.2. Procedure to measure the continuity of conductors "AUTO", "R+", "R-",
"R+TIMER" and "R-TIMER"
1. Select the desired mode with the FUNC key.
2. Connect the Red and Black cables to the instrument input terminals P and N respectively.
CAT I I I
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Red
P-E Conductor
Black
Main Earth Connector
Connections during LOWΩ test.
3. Connect the two crocodile clips to the test lead terminals.
4. Short-circuit the measuring lead ends making sure that the conducting parts of the
crocodile clips make good contact with each other. Press the G O key. If the
instrument displays a resistance value other than 0.00 repeat the
instrument calibration (see paragraph 4.1.1).
6. Connect the crocodile clips to the conductors on which the continuity test is to
be carried out (see previous picture).
7. If "R+TIMER" or "R-TIMER" mode is selected use the following keys to
select the duration of the test:
S ▲
Press this key to increase the duration of the test (Tmax=15 seconds).
Press this key to decrease the duration of the test (Tmin=3 seconds).
UL ▲
8. Press the GO key. The instrument performs the measurement.
GO
In R+/R- Timer mode
press GO key again if the test is to be stopped.
Never disconnect the test leads while “Measuring” is displayed.
WARNING
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T
4.1.2.1. "AUTO" Mode
)
At the end of the test, if the average
resistance value Ravg
5Ω the instrument emits a double
sound signal indicating the positive
outcome of the test and displays a
screen similar to this.
*
SAVE
4.1.2.2. "R+" or “R-" Mode
)
*
SAVE
4.1.2.3. "R+TIMER" or “R-TIMER" Mode
)
If during the R+Timer or R-Timer
resistance value lower than 5Ω
detected, the instrument (after the set
time has elapsed) emits a double sound
signal indicating the positive outcome
of the test and displays a screen similar
to this.
*
SAVE
* VR2240 only
*The test can be stored by pressing the SAVE key twice
At the end of the R+ or R-
resistance value
lower than 5Ω
instrument emits a double sound
signal indicating a successful
outcome of the test and displays a
screen similar to this.
The symbols R+ or R- are displayed.
*The test can be stored pressing the SAVE key twice
The symbols R+ or R- are displayed.
*The test can be stored pressing the SAVE key twice
is lower than
test if a
was detected, the
test a
is
CAL LOWΩ
1.07Ω
219 mA
AUTO
CAL LOWΩ
1.07Ω
219 mA
R+
R-
CAL LOWΩ
1.08Ω
219 mA
5 s
R+
R-
IMER
15
Average
resistance value
Ravg.
Average test
current value
Iavg.
Resistance value
R+ or R-.
Value of test
current I+ or I-.
Value of the t est
current I+ or I-.
Duration time of
the test
Page 16
A
g
g
4.1.3. Error screens which may occur during "AUTO", "R+", "R-", "R+TIMER", "R-
TIMER" tests
)
If a value of Ravg or R+ or R- higher
than or equal to 5Ω but lower than
99.9Ω (9.99Ω in R+TIMER and RTIMER) was detected, at the end of the
test the instrument emits a long sound
signal and displays a screen similar to
this.
WARNING: value of R
higher than 5Ω
av
CAL LOWΩ
5.75Ω
216mA 5s
AUTO
Only if mode
R+TIMER or RTIMER was
selected.
AUTO mode.
)
If in modes AUTO, R+, R- and 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 a screen similar to this.
WARNING: value of R
hi
h.
or R+ or R- is too
avg
CAL LOWΩ
>99.9Ω
- - - mA
AUTO
99.9Ω is the
maximum value
which can be
measured in the
LOWΩ AUTO or
R+ or R-mode.
)
If R+TIMER or R-TIMER Mode was
selected and a R+ or R- higher than
9.99Ω was detected, the instrument
emits an intermittent sound signal
during the test, a long sound signal
at the end of the test and displays a
screen similar to this.
WARNING: value of R+ or R- is too high.
CAL LOWΩ
>9.99Ω
--- mA 4 s
R+
TIMER
9.99Ω is the
maximum value
which can be
measured in
LOWΩ,
R+TIMER or RTIMER mode.
)
If the R
-R
CALIBRATION
resistance) is less than 0Ω the
instrument displays a screen similar to
this.
WARNING: R
*
SAVE
(measured resistance)
MEASURED
(minus test lead
MEASURED-RCALIBRATION
< 0
CAL LOWΩ
0.00Ω
219 mA
UTO
Blinking CAL.
AUTO mode.
*The tests can be stored by pressing the SAVE key twice
* VR2240 only
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)
If a voltage higher than 10V is detected
at the test leads, the instrument does
not carry out the test and displays the
screen alongside for 5 seconds. Then
the instrument displays the screen for
the previously selected test mode
LOWΩ under AUTO mode.
*
SAVE
THIS RESULT CANNOT BE SAVED
* VR2240 only
CAL LOWΩ
A
VOL AG
.
17
WARNING: the
test was not
performed
because of
excessive voltage
at the terminal
ends.
Page 18
4.2. MΩ: INSULATION RESISTANCE MEASUREMENT WITH TEST VOLTAGE OF
50V*, 100V*, 250V, 500V OR 1000V
The measurement is carried out in accordance with BSEN 61557-2 and VDE 0413 part 1.
Before carrying out the insulation test make sure that the circuit under test is
not energized and all the loads are disconnected.
Turn the switch to MΩ position.
FUNC
The FUNC key is used to select one of the following measuring modes (which
can be shown in rotation when pressing the key):
) MAN Mode (minimum test time of 10 seconds, or for as long as the GO key
is held). Recommended test.
) AUTO Mode (the test ends when the measured value becomes stable).
This test can be used if the installation has capacitance which must be
charged to evaluate the real insulation resistance.
) TIMER Mode (test duration depending on the selected interval (from 10 to
999 seconds). This test can be used if a minimum measuring time is
required.
* VR2240 only
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/
4.2.1. Procedure to measure insulation resistance
1. Select the desired mode using the FUNC key.
2. Connect the Red and Black test leads to the instrument input terminals P and N
respectively,
Black
Red
M
CAT I II
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Example insulation test between phase (#1) and earth
in a 3 phase electrical installation using test leads.
3. Connect the instrument terminals to the circuit which is to be subjected to the insulation
test after disconnecting the circuit under test from the supply and all relevant loads
(see previous picture).
4. Using the U
U
I
n
∆n
being carried out (see table).
Key, select the test voltage suitable for the type of test
n/I∆n
5. The values available are:
• 50V* (test on telecommunication systems)
• 100V*
• 250V
• 500V
• 1000V
If “Measuring” is displayed the instrument is carrying out the measurement.
During this stage do not disconnect the test leads as the circuit under test
may remain charged at a dangerous voltage due to the capacitance of the
installation. The instrument discharges any stored energy after each test.
* VR2240 only
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4.2.1.1. "MAN" Mode
6. Press the GO key.
GO
The instrument performs the test lasting for:
9 Minimum 10 seconds if the key is pressed and released within 5 seconds.
9 Or until the key is released.
)
At the end of the test, if the resistance
value R
(see table below), the instrument beeps
detected is lower than R
ISO
twice indicating the positive outcome
of the test and displays a screen similar
to this.
MAX
R
ISO
1.00MΩ
500 V 20s
MAN
Rated voltag e value
selected for the test.
*
SAVE
*The test can be stored by pressing the SAVE key twice
Test Voltage R
50VDC*
100VDC*
250VDC
500VDC
1000VDC
= Maximum resistance value
MAX
99.9MΩ
199.9MΩ
499MΩ
999MΩ
1999MΩ
* VR2240 only
20
Insulation
resistance value
R
ISO.
Test duration.
In this case the
GO key has been
pressed for 20
seconds.
Manual mode.
Page 21
selected
4.2.1.2. "AUTO" Auto
6. Press the GO key. The instrument performs the measurement ending
GO
when the measured value stabilizes.
: Press the GO key again to stop the test
Note
)
At the end of the test, if the resistance
value R
(see following table) the instrument
detected is lower than R
ISO
beeps twice indicating the positive
outcome of the test and displays a
screen similar to this.
*
SAVE
*The test can be stored pressing the SAVE key twice
MAX
R
ISO
.18MΩ
500 V 18s
AUTO
Rated voltag e value
for the test.
Insulation
resistance value
R
ISO.
Test duration.
In this case the
measurement
stabilized after 18
seconds.
Automatic mode.
Test Voltage R
50VDC*
100VDC*
250VDC
500VDC
1000VDC
= Maximum resistance value
MAX
99.9MΩ
199.9MΩ
499MΩ
999MΩ
1999MΩ
* VR2240 only
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4.2.1.3. "TIMER" Mode
6. When using "TIMER" mode, use the following keys to set the duration time of the test:
press this key to increase the duration of the test (Tmax=999 seconds).
S ▲
press this key to decrease the duration of the test (Tmin=10 seconds).
UL▼
7. Press the GO key.
GO
The instrument performs the test which will end when the set time has elapsed.
999 seconds → Maximum value of the test duration.
10 seconds → Minimum value of the test duration.
Pressing the GO key again immediately stops the test.
Note:
)
At the end of the test, if the resistance
value R
(see following table), the instrument
detected is lower than R
ISO
beeps twice indicating the positive
outcome of the test and displays a
screen similar to this.
Rated voltage value selected for the Timer test.
MAX
R
ISO
.07MΩ
500 V 20s
TIMER
Insulation
resistance value
R
ISO.
Duration of the
set test.
Timer mode.
*
SAVE
: *The test can be stored pressing the SAVE key twice
SAVING
: The maximum resistance value R
Note
on the rated voltage selected for the test:
which can be measured in mode MΩ depends
MAX
Test Voltage R
50VDC*
100VDC*
250VDC
500VDC
1000VDC
= Maximum resistance value
MAX
99.9MΩ
199.9MΩ
499MΩ
999MΩ
1999MΩ
* VR2240 only
22
Page 23
p
4.2.2. Other screens which may appear during "MAN", "AUTO" & "TIMER" tests
)
If a value of R
detected (depending on the selected
voltage, the instrument emits a double
beep at the end of the test indicating
the positive outcome to the test and
displays a screen similar to this.
Maximum resistance value which can be
measured (999MΩ is displayed if a rated
voltage of 500V was selected).
)
If a test is performed at a voltage
lower than the set rated voltage, at
the end of the test the instrument emits
a long single beep and displays a
screen similar to this.
WARNING: the insulation resistance test R
performed at a voltage value lower than the set
rated voltage. This occurs under low insulation*
conditions or in the presence of capacitance on
the installation. *See technical s
*
SAVE
)
If the terminal voltage is higher than
30V, the instrument does not perform
the test, and displays the screen
alongside for 5 seconds. Then it shows
the default screen for the R
under AUTO mode.
*
SAVE
* VR2240 only
higher than R
ISO
MAX
was
R
ISO
>999MΩ
500 V 20s
MAN
R
ISO
0.01MΩ
500 V 20s
was
ISO
ecification.
: *The test can be stored pressing the SAVE key twice
SAVING
test
ISO
THIS RESULT CANNOT BE SAVED.
MAN
R
ISO
A
VOL AG
The symbol ">"
means that the
resistance value
R
is higher than
ISO
R
MAX
Test duration
Selected mode
MANUAL
Selected mode
MANUAL
WARNING: the
test was not
carried out.
Check that the
circuit is not
energised.
23
Page 24
4.3. RCD
RCD : TESTS ON TYPE A OR AC RCD’S
The test is performed according to BSEN 61557-6, BSEN61008, BSEN61009,
BSEN60947-2 B 4.2.4 and VDE 0413 part 6.
The automatic check of the RCD causes tripping of the RCD itself. Therefore
check that there is no power or load connected downstream which could
be affected by the installation switching off.
WARNING
It is advisable to disconnect all the loads connected downstream of the RCD as
they could add leakage currents so making the test results void.
Turn the switch to RCD
leakage current DC sensitive) or RCD
(RCDS type A sensitive to pulsating
(RCDS type AC sensitive to
sine leakage current) position:
FUNC
The FUNC key is used to select one of the following measuring modes
(which can be shown in rotation when pressing the key)
) MAN x ½ the instrument performs the test with a leakage current at 1/2
the value of the rated current indicated, with a leakage current in phase
with the voltage or phase shifted by 180° with respect to the voltage.
) MAN x 1 the instrument performs the test with a leakage current at 1x
the value of the rated current indicated, with a leakage current in phase
with the voltage or phase shifted by 180° with respect to the voltage.
) MAN x 2 the instrument performs the test with a leakage current at 2x
the value of the rated current indicated, with a leakage current in phase
with the voltage or phase shifted by 180° with respect to the voltage.
) MAN x 5 the instrument performs the test with a leakage current at 5x
the value of the rated current indicated, with a leakage current in phase
with the voltage or phase shifted by 180° with respect to the voltage.
) AUTO the instrument performs the test automatically with a leakage
current at 1/2x
, 1x & 5x the value of the rated current indicated with the
leakage current in phase with the voltage or phase shifted by 180° with
respect to the voltage. Recommended test
.
) *RAMP MODE
(VR2240 ONLY) the instrument performs the test
with a steadily increasing leakage current, with the leakage current
in phase with the voltage or phase shifted by 180° with respect to
the voltage. Use this test to measure the tripping current.
) Mode U
the instrument performs the test with a leakage current equal to
t
the value of the rated current indicated and calculates the contact
1/2
voltage as well as the R
phase with the voltage or phase shifted by 180° with respect to the voltage.
earth resistance with a leakage current in
a
) Readings below 1Ω are displayed as 1Ω
24
Page 25
/
: According to standard practice it is recommended to perform RCD tests both
Note
with phase at 0° and with phase at 180°. Therefore the test must be repeated
for both phase values of test current. If the RCD under test is of a type sensitive to
both AC and unidirectional pulsing leakage currents, it is advisable to perform the
test both with sine wave and unidirectional pulse current with phase 0° and 180°.
U
I
The key U
n
∆n
of the RCD (which can be shown in rotation when pressing the key):
is used to select one of the following rated tripping currents
n/I∆n
) 10mA.
) 30mA.
) 100mA.
) 300mA.
) 500mA.
S ▲
The key S▲ is used to activate the test for general or selective RCDs:
) if the test is performed for selective (time delayed) RCDs the symbol
must be displayed.
) if the test is performed for general RCDs the symbol
S
displayed.
The option for testing selective RCDs requires an interval between tests of 60
seconds (30 seconds in case of tests at ½ I
the waiting time before the instrument performs the test automatically.
). A timer is displayed indicating
∆n
Example: Testing a selective RCD with a rated current of I
a) the instrument performs the test at ½ I
passed the test, “OK” is displayed and the RCD does not trip.
b) The instrument performs the test at ½ I
passed the test, “OK” is displayed and the RCD does not
0°. If the RCD
∆n
180°. If the RCD
∆n
trip. At this stage 30 seconds must elapse before performing
the next test.
c) The instrument performs the test at I
the test, “OK” is displayed and the RCD trips and the blinking
0°. If the RCD passed
∆n
symbol “rcd” is displayed. The operator should switch on the
RCD. After the RCD trips at least 60 seconds must elapse
before performing the next test.
d) The instrument performs the test at I
same procedure as described under c).
e) The instrument performs the test at 5xI
same procedure as described under c).
f) The instrument performs the test at 5xI
same procedure as described under c). The test is completed.
180°. Follow the
∆n
0°. Follow the
∆n
180°. Follow the
∆n
In AUTO mode, the operator should switch the RCD on whenever the
instrument displays the blinking symbol “rcd” signaling the RCD has tripped.
must NOT be
=30mA
∆n
S
25
Page 26
Note: On selective RCDs it is possible to carry out the following tests ”Man ½ I
”, ”Man 2 I∆n”, ”Man 5 I∆n”, “AUTO”.
I
∆n
UL
The key U
contact voltage (which can be shown in rotation when pressing the key):
▼ is used to select one of the following limit values for the
L
) 50V (default)
) 25V.
Never disconnect the test leads while “Measuring” is displayed.
WARNING
: ”Man 5x I∆n” and “AUTO” test modes are NOT available for RCD type A
Note
500mA.
”, ”Man 1
∆n
26
Page 27
4.3.1. Procedure for RCD testing
1. Select the desired mode (MAN, x1, x2, x5, AUTO, *RAMP) with the FUNC key.
2. Connect the 3 red, black and green connectors of the three-terminal mains cable, or
the single test leads, to the corresponding input terminals of the instrument P, N, E (see
possible connections in the pictures below). If using un-terminated cables connect the
crocodile clips to the free ends of the cables.
R
L1
S
L2
T
L3
Red
L1
Green
P
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
Black
Connection for 230V single-phase RCD check
N
Green
Connection for 400V + N + PE three-phase RCD
Red
Black
(P)
EL2NL3P
L1
check
R
L1
S
L2
T
L3
N
Black
Green
L1
Red
CAT III
(P)
NL3P
INPUT MAX
440 V P-N-E
250 V
L2
Connection for 400V + N (no PE) three-phase RCD
check
L1
L2
L3
Connection for 400V + PE (no N) three-phase
R
S
T
Green
RCD check
Red
Black
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
*VR2240 ONLY
CAT III
INPUT MAX
440 V P-N-E
250 V
27
Page 28
4.3.1.1. "MAN x½" Mode
4. ) Press the GO key once. The instrument carries out the test injecting a
GO
current in phase with positive half wave of the voltage
display by 0°.
) Press the GO key twice. The instrument carries out the test injecting a
current in phase with negative half wave of the voltage
display by 180°.
)
If the RCD does NOT trip the
instrument emits a double sound
signal indicating a positive outcome
of the test and displays a screen similar
to this.
The symbol ">" indicates that the RCD did not trip.
Indicates that the test was carried out with current
in phase by 0° or 180° with respect to the voltage.
*
SAVE
*The test can be stored pressing the SAVE key twice
RCD ~
>999 ms
OK
Ι∆N 30mA 2V
x1/2
MAN
0° U
Limit set for the
contact voltage
= 50V
L
or RCD
OK: indicates that
RCD passed the
test.
Value of contact
voltage U
detected, referred
to the rated value
of the RCD
current set.
indicated on
indicated on
t
* VR2240 only
28
Page 29
4.3.1.2. "MAN x1, x2 & x5" Modes
4. ) Press the GO key once. The instrument carries out the test injecting a
GO
current in phase with positive half wave of the voltage
indicated on
display by 0°.
) Press the GO 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°.
: “Man 5x I∆n” and “AUTO” test modes are not available for 500mA RCD type A .
Note
=50V
L
or RCD
RCD tripping time
Value of contact
voltage U
t
detected referred
to the rated value
of the RCD
current set.
)
When the RCD trips, and if the tripping
time is within certain limits, the
instrument emits a double sound
signal indicating the positive
outcome of the test and displays a
screen similar to this.
OK: The OK symbol relates only to certain trips. It
is essential to ensure that the trip is fast enough for
the trip rating and application being tested. Please
refer to the latest edition of the IEE regs for
individual tripping times.
RCD ~
40 ms
OK
Ι∆N 30mA 1V
x1
t
MAN
0° U
Limit set for the
contact voltage.
Indicates that the test was carried out with current
in phase by 0° or 180° with respect to the voltage
*
: *The test can be stored pressing the SAVE key twice
SAVE
SAVING
* VR2240 only
29
Page 30
4.3.1.3. "AUTO" Mode
4. Press the GO key: The instrument carries out the following six
GO
tests with different values of rated current:
) 1/2x I
) 1/2x I
) I
) I
) 5x I
) 5x I
at 0° (the RCD should not trip).
∆n
at 180° (the RCD should not trip).
∆n
at 0° (the RCD trips, blinking rcd, switch it on again).
∆n
at 180° (the RCD trips, blinking rcd, switch it on again).
∆n
at 0° (the RCD trips, blinking rcd, switch it on again).
∆n
at 180° (the RCD trips, end of the test).
∆n
In AUTO mode for each positive result 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 limits, or at the
first value out of limits.
: ”Man 5x I∆n” and “AUTO” test modes aren’t available for 500mA RCD type A .
Note
)
At the end of the test if
all six results are
positive, the instrument
displays the screen
alongside with the last
measurement
performed.
OK: indicates that the RCD
passed the test.
RCD ~
23 ms
OK
Ι∆N 30mA 1V
x5
t
AUTO 180° U
=50V
L
or RCD
Value of
contact voltage
U
detected.
t
5. Press the DISP key to scroll between the results for the six tests
*
SAVE
DISP
performed which can be shown in rotation in the following order:
at 0°, ½I∆n at 180°, I∆n at 0°, I∆n at 180°, 5I∆n at 0°, 5I∆n at 180°.
½I
∆n
: *The test can be stored pressing the SAVE key twice
SAVING
* VR2240 only
30
Page 31
4.3.1.4. * "RAMP
" Mode (VR2240 ONLY)
4. ) Press the GO key once. The instrument carries out the test injecting
GO
a current in phase with positive half wave of the voltage
indicated on
display by 0°.
) Press the GO key once. The instrument carries out the test injecting a
current in phase with negative half wave of the voltage
indicated on
display by 180°.
The instrument generates a leakage current growing step by step in a given time interval.
)
At the end of the test if the RCD tripping
current is ≤ I
(Type A with I
A with I
a double sound signal indicating the
(Type AC) or 1.4 I∆n
∆n
> 10mA) or 2 I∆n (Type
∆n
≤ 10mA), the instrument emits
∆n
positive outcome of the test and
displays a screen similar to this.
Value of contact voltage Ut detected referred to the
rated value of the RCD current set.
RCD ~
24 mA
OK
41 ms 1 V
t
0° U
= 50 V
L
or RCD
RCD tripping time
OK: indicates that
the RCD passed
the test.
*
SAVE
: *The test can be stored pressing the SAVE key twice
SAVING
If the parameters set on the instrument are consistent with the RCD under test, the ramp test
” WILL CAUSE RCD TRIPPING WITH A CURRENT LOWER THAN OR EQUAL TO THE
“
SELECTED RATED DIFFERENTIAL CURRENT. Do not use this test to compare the trip
time with the trip current, as the RCD has to be tested for tripping time with a current equal
to and over that of the rated leakage current of the RCD.
* VR2240 only
31
Page 32
g
4.3.1.5. Mode "U
4. ) Press the GO key once: the instrument carries out the test.
GO
)
If the RCD does NOT trip the
instrument emits a double sound
signal indicating the positive
outcome of the test and displays a
screen similar to this.
Value of contact voltage Ut detected refers to the
rated value of the RCD current set.
Value of eart h resistance Ra. is displayed. If "o.r."
is displayed, this indicates that the instrument
detected a resistance higher than 1999Ω.
*
SAVE
"
t
RCD ~
1.4V
OK
Ι∆N 30mA 49Ω
U
t
0° U
=50 V
L
: *The tests can be stored by pressing the SAVE key twice
SAVING
or RCD
OK: indicates that
the RCD passed
the test.
this indicates that
the test was
carried out with
current in phase
(0°) or phase
shifted (180°) with
respect to the
volta
e.
* VR2240 only
32
Page 33
4.3.2. Tripping times for general and selective RCDs
If the parameters set on the instrument are in keeping with the type of RCD under test (and
if this works correctly) the test with leakage current I
RCD tripping within the times set according to the following table:
x1, I∆N x2, I∆N x5 SHOULD cause
∆N
RCD type
General 0.3s 0.15s 0.04s Max tripping time in seconds
Selective S
For rated values I∆N ≤ 30mA the test current at five times is 0.25A.
For currents equal to ½
Tripping times for tests with leakage currents I
I
∆N
x 1 I
x 2 I
∆N
x 5
∆N
0.5s 0.20s 0.15s Max tripping time in seconds
0.13s 0.05s 0.05s Minimum delay tripping time in
seconds
I
the RCD should not trip in any case.
∆N
x1, I
N
∆
x2, I
N
∆
Description
x5 and AUTO.
N
∆
4.3.2.1 Note
The above values apply to RCDs manufactured to comply with BSEN61008. RCDs
which are manufactured to comply with BS4293 are required to operate in 0.2s at
∆N X1. It is important that the user of this instrument is aware of the applicable
I
tripping time(s) for the RCD being tested.
33
Page 34
4.3.3. Other situations which may occur during RCD tests in any working mode
)
Should the instrument detect that the
phase and/or neutral cables are not
connected to an installation, the screen
alongside is displayed when pressing
GO.
Message “no VOL tAGE”: too low a voltage was
detected
)
Should the instrument detect a voltage
between phase and neutral higher than
265V, for Example if the black cable is
connected to an installation phase
conductor of a 400V three-phase
system, the screen alongside is
displayed.
)
This screen is displayed if the phase
conductor is reversed with the neutral.
The instrument does not perform the test.
Exchange the black cable with the red. Repeat the
test.
)
This screen is displayed if the phase
conductor is reversed with the earth.
The instrument does not perform the test.
Reverse the phase to earth connection in the plug
or exchange the red cable with the green.
)
This screen is displayed when in a 2
phase system the black conductor is
reversed with the green.
The instrument does not perform the test.
*
SAVE
THE PREVIOUS RESULT CANNOT BE SAVED.
RCD ~
P-N
VOL AG
RCD ~
Hi
P-N
VOL AG
RCD ~
A
P-N
RCD ~
A
P-PE
RCD ~
A
PEN
or RCD
or RCD
Message
“Hi VOL tAG”
too high a voltage
was detected.
or RCD
Message "Att":
voltage between
phase and earth
is too low.
or RCD
Message "Att":
voltage between
phase and earth
is too low.
or RCD
* VR2240 only
:
34
Page 35
)
If the instrument detects that the earth
cable (green) is not connected, the
screen alongside is displayed for 5
seconds after which time the screen
reverts to the initial display. Check the
connections of PE conductor under
test.
*
SAVE
THE PREVIOUS RESULT CANNOT BE SAVED
)
During the tests MAN x1, x2, x5 and
AUTO (during x1 and x5 tests), if the
RCD trips to break the circuit within a
time not complying with the limits in
table 4.3.2, the instrument emits a long
sound signal at the end of the test and
displays the values alongside.
*Refer also to note 4.3.2.1
)
If the RCD trips in a time higher than
the instrument’s measuring limits, the
instrument emits a long sound signal
at the end of the test and displays the
values alongside.
The maximum duration depends on the test type:
Test type General RCD Selective RCD
MAN x1 test 999ms 999ms
MAN x2 test 200ms 250ms
MAN x5 test 50ms 160ms
*“ ” test 300ms
* SAVING
SAVE
: *The tests can be stored by pressing the SAVE key twice
* VR2240 only
RCD ~
>1999Ω
no PE
.
RCD ~
487ms
Ι∆N 30mA 1 V
x1
t
MAN
Ι∆N 30mA 2 V
x1
MAN
0° U
0° U
=50V
L
RCD ~
>999mS
t
= 50 V
L
or RCD
Message
“no PE”
instrument does
not detect the
protection circuit.
or RCD
RCD tripping time
WARNING: the
tripping time is
higher than the
standard limit.
RCD tripping
time:
> maximum
measuring time
(depending on
type of test, see
table below).
: the
35
Page 36
)
)
*During the ramp test, if the RCD
trips to break the circuit at a tripping
current higher than I∆n (Type AC) or 1.4
(Type A with I∆n>10mA) or 2 x I∆n
x I
∆n
(Type A with I
emits a long sound signal at the end
of the test and displays a screen similar
to this.
WARNING: the RCD tripping current is higher than
the rated value of the set differential current
=30mA was set in the Example
(I
∆N
)
*During the ramp test for general
RCDs if the RCD trips to break the
circuit, the instrument emits a long
sound signal at the end of the test and
displays a screen similar to this.
Maximum current generated by the instrument
during the test for general RCDs (the value
indicated refers to an AC type 30mA RCD, in this
case the maximum current supplied is equal to
)
1.4xI
∆N
*
SAVE
)
If a contact voltage Ut higher than the
selected limit (UL) is detected the
instrument stops the test, emits a long
sound signal and displays a screen
similar to this.
Message “>50V” o “>25V”: the instrument
detects a contact voltage higher than the selected
limit (50V in this case).
* THIS RESULT CANNOT BE SAVED
SAVE
In order to store the contact voltage value U
* VR2240 only
≤10mA), the instrument
∆n
.
: *The tests can be stored by pressing the SAVE key twice
SAVING
, perform the test under Ut mode.
t
RCD ~
33mA
58ms 1 V
t
0° U
=50V
L
RCD ~
>300mS
Ι∆N 42mA 2 V
t
I
∆N
x5
MAN
0° UL=50V
.
0° UL=50 V
RCD ~
> 50 V
A UL
t
or RCD
RCD tripping current
or RCD
Contact voltage
refers to the
U
L
value of rated
current.
or RCD
Message "Att
UL": too higher
contact voltage
was detected.
36
Page 37
the test
)
If the instrument is unable to generate
the current because the fault loop
presents a too high a resistance, the
instrument emits a long sound signal
at the end of the test and displays a
screen similar to this
)
During the Ut test if the instrument
detects a contact voltage U
the full scale value, a long sound signal
higher than
t
is emitted at the end of the test and
displays a screen similar to this.
Message ">100V" or “>50V”:
the instrument detected a contact voltage higher
than the full scale. Under U
full scale is equal to 100V or 50V depending on the
value set for U
equal to 50V or 25V.
L
mode the instrument
t
)
If the RCD trips during the preliminary
test at ½ I
working mode) the instrument displays
(independently from the
dn
the screen alongside until voltage
between phase and earth is detected
(RCD reset) after which time the screen
reverts to the initial display
)
If the thermistors of the instrument are
damaged, a screen similar to this is
displayed.
)
If the instrument becomes overheated,
tests cannot be carried out and the
message alongside is displayed. Wait
until the screen reverts to the initial
display in order to proceed.
Message “hot”: the instrument overheated.
*
SAVE
THIS RESULT CANNOT BE SAVED
* VR2240 only
37
RCD ~
A
Ι∆N hi ES
AUTO 0° UL= 50 V
RCD ~
>100V
A UL
I
∆N
t
0° UL=50V
t
RCD ~
c
Ι∆N - - - - - -
x1
MAN
t
0° UL=50V
RCD ~
c
.
RCD ~
Message “rcd”:
the RCD trips too
early. Some
leakage currents
may be present in
the installation.
Message
“HI rES”
: the
instrument
detected a
excessive
resistance
therefore it is
unable to perform
.
Page 38
4.4. LOOP Z
This test is designed for use where there is no RCD in the circuit.
This test will trip the RCDs.
FUNC
When “Measuring” is indicated on the display, the instrument is carrying out
a test. Never disconnect test leads while “Measuring” is displayed.
/IK: MEASUREMENT OF LINE IMPEDANCE, FAULT LOOP
S
IMPEDANCE AND CALCULATION OF PROSPECTIVE
SHORT CIRCUIT AND FAULT CURRENT
WARNING
Turn the switch to LOOP Z
/IK position.
S
The FUNC key is used to select one of the following measuring modes (which
can be shown in rotation when pressing the key):
) “P-N” Mode (the instrument measures the resistance between the phase
and neutral conductors and calculates the phase to neutral prospective
short circuit current).
) “P-P” Mode (the instrument measures the resistance between two phase
conductors and calculates the phase to phase prospective short circuit
current).
) “P-PE” Mode (the instrument measures the resistance between the phase
and protective conductors and calculates the phase to earth prospective
fault current).
WARNING
38
Page 39
p
4.4.1. "P-N" Mode
1. Select P-N mode with the FUNC key.
2. If possible disconnect all low impedance loads downstream of the point at which the
measurement is to be taken, since such impedances would be in parallel with the line
impedance to be measured.
3. Connect the red, black and green connectors of the mains lead (13a plugtop) or of the singular
test leads to the corresponding input terminals of the instrument. (see diagrams below). When
testing disconnected cables, connect the crocodile clips to the free ends of these.
R
L1
S
T
N
P
Green
Black
Red
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Instrument connection for 230V single-phase or
two-phase line impedance measurement
Instrument connection for line impedance
measurement in a 400V three-phase system
Green
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Black
Red
4. Put the mains plug into a 230V 50Hz socket or connect the crocodile clips to the
conductors of the three-phase system (see pictures).
GO
5. Press the GO key. The instrument starts the test.
)
At the end of the test the instrument
emits a double sound signal
indicating that the test completed
correctly and displays a screen similar
to this.
Effective value of the phase to neutral prospective
short circuit current expressed in Ampere
calculated according to the formula on the next
page.
LOOP
1.07Ω
P-N
223 V 214 A
Value of phase to
neutral line
impedance
ex
ressed in Ω.
Phase to neutral
effective voltage
value expressed
in Volts.
The measurement of Phase-Neutral impedance entails the flow of a current
of about 6A between the two conductors. This may cause the tripping of
magnetothermal RCDs with nominal value lower than 10A. If necessary
WARNING
perform the test upstream of the RCD itself.
39
Page 40
*
SAVE
SAVING
* VR2240 only
Calculation formula for prospective short circuit current:
where U
I =
= phase to neutral voltage 127V if V
N
CC
Z
PN
230V if 150V < V
≤ 150V
meas
meas
U
N
: *The tests can be stored by pressing the SAVE key twice
≤ 265V
40
Page 41
p
4.4.2. "P-P" Mode
1. Select P-P mode with the FUNC key.
2. If possible disconnect all low impedance loads downstream of the point at which the
measurement is to be taken, since such an impedance would be in parallel with the line
impedance to be measured.
3. Connect the three red, black and green connectors of the test leads to the corresponding
input terminals of the instrument P, N, E (see possible connections in the following
pictures).
CAT III
(P)
EL2NL3P
INPUT MAX
R
L1
S
L2
T
L3
N
Red
Black
Green
440 V P-N-E
250 V
L1
Connections for measurement of phase to phase impedance
4. Connect the crocodile clips to the conductors of the three-phase system (see picture).
GO
5. Press the GO key. The instrument starts the test.
)
At the end of the test the instrument
emits a double sound signal
indicating that the test completed
correctly and displays a screen similar
to this.
Effective value of the phase to phase prospective
short circuit current expressed in Amperes
calculated according to the formula below.
LOOP
1.07 Ω
P-P
383 V 374 A
Value of phase to
phase line
impedance
ex
ressed in Ω.
Phase to phase
effective voltage
value expressed
in Volts.
The measurement of Phase-Phase impedance entails the flow of a current of
about 11.5A between the two conductors. This may cause the tripping of
magnetothermal RCDs with nominal value lower than 10A. If necessary
WARNING
perform the test upstream of the RCD itself.
Formula for calculation of prospective short circuit current:
where U
230V if 150V < V
= phase to phase voltage 127V if V
N
400V if V
*
SAVE
: *The tests can be stored by pressing the SAVE key twice
SAVING
meas
meas
≤ 150V
> 265V
meas
I =
≤ 265V
CC
Z
PP
U
N
* VR2240 only
41
Page 42
4.4.3. Mode "P-PE"
1. Select P-PE mode with the FUNC key.
2. Connect the three red, black and green connectors of the three-terminal mains test lead or of
the single test leads in the corresponding input terminals of the instrument P, N, E (see
possible connections in the following pictures).
L1
L3
R
S
T
N
P
Green
Black
Red
CAT I I I
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Connections for loop impedance measurement in
a 230V single- or two-phase system
Connections for loop impedance measurement in
a 400V three-phase system with neutral
Green
CAT I I I
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Black
Red
L1
L2
L3
R
S
T
Green
CAT III
(P)
EL2NL3P
Black
INPUT MAX
440 V P-N-E
250 V
L1
Red
Measurement of loop impedance in a 230 or 400V three-phase system without neutral
3. Connect the mains plug into a 230V 50Hz socket or the crocodile clips to the conductors
of the three -phase system (see pictures).
4. The instrument carries out the test verifying that the contact voltage of the installation is
not higher than the limit contact voltage value. The contact voltage limit is that set under
one of the following functions: RCD
, RCD or R
a15mA
.
Example: if you are carrying out tests in an area where the limit contact voltage is equal
to 25V, you will need to select one of the following functions: RCD
, and select the limit contact voltage of 25V using UL▼. At this stage if you turn the
Ra
15mA
selector on LOOP Z
the test.
under mode P-PE, the instrument will use the limit of 25V during
S/IK
, RCD or
42
Page 43
p
5. ) Press the GO key once. The instrument carries out the test injecting
GO
a current in phase with positive half wave of the voltage
display by 0°.
) Press the GO key twice. The instrument carries out the test injecting
a current in phase with negative half wave of the voltage
display by 180°.
)
At the end of the test the instrument
emits a double sound signal
indicating that the test completed
correctly and displays a screen similar
to this.
Effective value of the phase to earth prospective
short circuit current expressed in Ampere
calculated according to the formula below.
LOOP
3.65 Ω
P-PE
221 V 63A
indicated on
indicated on
Value of phase to
earth fault
impedance
ex
ressed in Ω.
Phase to earth
effective voltage
value expressed
in Volts.
The measurement of Phase-PE impedance entails the flow of a current of
about 11.5A between the two conductors. This may cause the tripping of
magnetothermal RCDs with nominal value lower than 10A. If necessary
WARNING
perform the test upstream the RCD itself.
Formula for calculation of prospective fault current:
U
N
I =
CC
Z
PE
*
SAVE
where U
SAVING
= phase to earth voltage 127V if 100V < V
N
230V if 150V < V
: *The tests can be stored by pressing the SAVE key twice
meas
meas
< 150V
≤ 265V
* VR2240 only
43
Page 44
4.4.4. Other situations which may occur during LOOP, Z
)
Should the instrument detect that the
phase and/or neutral cables are not
connected to an installation, the screen
alongside is displayed when pressing
GO.
LOOP
P-N
VOL AG
)
This screen is displayed if the phase
conductor is reversed with the neutral.
The instrument does not perform the test.
Exchange the red test lead with the black. Check
the earth connection. Repeat the test.
)
This screen is displayed if the phase
conductor is reversed with the earth.
The instrument does not perform the test.
Reverse the phase to earth connection under test
or exchange the red test lead with the green.
Repeat the test.
)
Should the instrument detect a voltage
between phase and neutral higher than
265V, for Example if the black cable is
connected to an installation phase
conductor of a 400V three-phase
system, a screen similar to this is
displayed.
)
This screen is displayed if when testing
a 2 phase system, the black conductor
is reversed with the green.
The instrument does not perform the test.
*
SAVE
THE PREVIOUS RESULT CANNOT BE SAVED
* VR2240 only
LOOP
A
P-N
LOOP
A
P-PE
LOOP
Hi
P-N
VOL AG
LOOP
A
PEN
tests in any working mode
S/IK
Message
"no VOL tAG”
too low a voltage
was detected.
Message “Att”:
too low a voltage
between phase
and earth.
Message “Att”:
too low a voltage
between phase
and neutral.
Message
“Hi VOL tAG”
too high a voltage
was detected.
.
:
: a
44
Page 45
)
If the instrument detects that the earth
cable (green) is not connected, the
screen alongside is displayed for 5
seconds then the screen reverts to the
initial display. Check the connections of
PE conductor under test.
)
If a contact voltage Ut higher than the
selected limit (UL) is detected the
instrument stops the test and emits a
long sound signal at the end of the
LOOP
>1999Ω
no PE
LOOP
> 50 V
A UL
test. A screen similar to this is
displayed.
">50" or “>25V”: the instrument detects a contact
voltage higher than the selected limit (50V in this
case).
t
0° UL=50V
)
If during the test the instrument does
not detect voltage, a screen similar to
this is displayed.
LOOP
c
P-P
--- ---
t
LOOP
c
)
If the thermistors of the instrument are
damaged, a screen similar to this is
displayed.
)
If the instrument becomes overheated,
tests cannot be carried out and the
message alongside is displayed. Wait
until the screen reverts to the initial
display in order to proceed.
*
SAVE
*THE PREVIOUS RESULT CANNOT BE SAVED
* VR2240 only
LOOP
Message
“no PE”
: the
instrument does
not detect the
protection
circuit.
The instrument
displays 0° or
180°
45
Page 46
)
if the instrument detects a resistance
lower than 0,03Ω, the screen alongside
is displayed. Line impedance value is
too low and the instrument doesn’t
perform the measurement
*
THE PREVIOUS RESULT CANNOT BE SAVED.
SAVE
LOOP
e
P-P
)
If using P-PE mode the instrument
carries out the test and detects a
resistance higher than 1999Ω
, a
screen similar to this displayed.
Generated current. Resolution 1A.
Value of voltage existing between the phase &
earth terminals on the instrument. (P-PE)
)
Under mode P-P or P-N if the
instrument detects a resistance
higher than 199.9Ω a screen similar to
this displayed.
Value of voltage existing between the phase to
phase (if the test is P-P), phase to neutral (if the
test is P-N).
LOOP
>1999Ω
218V 0A
LOOP
>199.9Ω
P-N
218V 0A
Message "Err":
the instrument
detects a line
loop resistance
lower than 0.03Ω.
Message
">199.9":
the instrument
detects a line
loop resistance
higher than
199.9Ω.
Generated current. Resolution 1A.
* SAVING:
SAVE
*The tests can be stored by pressing the SAVE key twice
)
*This screen can be inadvertently
displayed if the U
when in the LOOP Z
a function reserved for future use. To
button is pressed
n/I∆n
/IK range. This is
S
return the display back to the default
screen, press the U
Note: Unless the U
default, the “no con ins” screen will remain active in the
LOOP Z
batteries are removed.
n/I∆n
/IK range even if the unit is powered down or if the
S
button again.
n/I∆n
is pressed to return the screen to
* VR2240 only
LOWΩ LOOP
46
Page 47
4.5. R
: MEASUREMENT OF EARTH RESISTANCE WITH 15mA CURRENT
a15mA
AND CALCULATION OF PROSPECTIVE FAULT CURRENT (PFC)
This test is designed for circuits where there is an RCD. Provided pre-existing
levels of earth leakage are low this test will not trip RCDs. The test results are
presented to 1Ω resolution. Where an RCD is available for extra protection,
WARNING
there is no need to specify the loop to 2 decimal places. Records stated for
example as “≤1Ω” are acceptable.
Turn the switch to R
a15mA
position.
) The only available mode is P-PE.
1. Connect the three red, black and green connectors of the three-terminal mains test lead
or of the single test leads to the corresponding input terminals of the instrument P, N, E
(see possible connections in the following pictures). When testing at loose cables,
connect the crocodile clips to the free ends of these
R
S
T
N
Green
CAT III
(P)
EL2NL3P
INPUT M AX
440 V P-N-E
250 V
L1
Black
Red
phase system with neutral
P
Green
Black
Red
CAT I I I
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Connection for Earth Resistance in a 230V single-
or two-phase system
R
L1
S
L2
L3
T
L1
L2
L3
Connection for Earth Resistance in a 400V three-
Green
CAT III
Black
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Red
Earth Resistance in a 230V or 400V three-phase system without neutral
2. Connect the mains plug into a 230V 50Hz socket or the crocodile clips
to the conductors of the three-phase system (see picture).
47
Page 48
3. The U
UL▼
▼ key is used to select one of the following limit values for
L
the contact voltage (which can be shown in rotation when pressing the key):
) 50V (default)
) 25V.
GO
4. Press the GO key. The instrument starts the test.
Signifies non- trip
low current loop
test
)
At the end of the test the instrument
emits a double sound signal indicating
that the test completed correctly and
displays a screen similar to this
Effective value of the phase to earth prospective
fault current (PFC) expressed in Amperes
calculated according to the formula below.
Resolution is 1A.
RCD LOOP
49 Ω
P-PE
3V 4A
Value of Earth
Resistance
expressed in Ω.
Resolution is 1Ω.
Value of contact
voltage detected
during the
measurement
with leakage
current of 15mA.
Resolution is 1V.
: The test is used to perform the measurement of Earth Resistance without causing
Note
the RCD to trip. (RCD rated I
higher than or equal to 0.03A.)
∆N
Formula for the calculation of the prospective short circuit current:
U
N
I =
CC
R
A
where U
= phase to earth voltage 127V if 100V < V
N
= earth resistance
R
A
230V if 150V < V
meas
meas
≤ 150V
≤ 265V
WARNING
When “Measuring” is indicated on the display, the instrument is carrying out
a test. Never disconnect test leads while “Measuring” is displayed.
*
SAVE
: *The tests can be stored by pressing the SAVE key twice
SAVING
* VR2240 only
48
Page 49
4.5.1. Other situations which may occur during R
)
Should the instrument detect that the
phase and/or neutral cables are not
connected to an installation, a screen
similar to this is displayed when
pressing GO.
Message "no": the instrument does not perform
the test because too low a voltage was detected.
)
Should the instrument detect a voltage
VOL AG
between phase and neutral higher than
265V, for Example if the black cable is
connected to an installation phase
conductor of a 400V three-phase
system, a screen similar to this is
displayed.
)
This screen is displayed if the phase
VOL AG
conductor was reversed with respect to
the neutral.
The instrument does not perform the test.
Exchange the red test lead with the black. Check
the earth connection. Repeat the test.
)
This screen is displayed if the phase
conductor is reversed with the earth.
The instrument does not perform the test.
Reverse the phase to earth connection under test
or exchange the red test lead with the green.
Repeat the test.
)
This screen is displayed if when testing
a 2 phase system, the black conductor
is reversed with the green.
The instrument does not perform the test
*
SAVE
THE PREVIOUS RESULT CANNOT BE SAVED
* VR2240 only
49
tests
A15mA
RCD LOOP
P-N
RCD LOOP
Hi
P-N
RCD LOOP
A
P-N
RCD LOOP
A
P-PE
RCD LOOP
A
PEN
.
Message “No
VOLTAGE”:
Too low a voltage
was detected.
Message “Hi
VOL tAG”:
Too high a
voltage was
detected
Message "ATT":
voltage between
phase and earth
is too low.
Message "Att":
voltage between
phase and
neutral is too
low.
Page 50
(
)
)
If the instrument detects that the earth
cable (green) is not connected, the
screen alongside is displayed for 5
seconds then the screen reverts to the
initial display. Check the connections of
PE conductor under test.
)
If a contact voltage Ut higher than the
selected limit (UL) is detected the
instrument stops the test and emits a
long sound signal at the end of the
test. A screen similar to this is
displayed.
Message ">50" or “>25V”:
The instrument detects a contact voltage higher
than the selected limit
50V in this case
)
If during the test the instrument does
not detect voltage, a screen similar to
this is displayed.
)
If the thermistors of the instrument are
damaged, a screen similar to this is
displayed.
)
If the instrument becomes overheated,
tests cannot be carried out and the
message alongside is displayed. Wait
until the screen reverts to the initial
display in order to proceed.
*
SAVE
THE PREVIOUS RESULT CANNOT BE SAVED
* VR2240 only
RCD LOOP
>1999Ω
no PE
RCD LOOP
>50 V
A UL
RCD LOOP
c
--- ---
RCD LOOP
c
RCD LOOP
50
Message
: the
"no PE"
instrument does
not detect the
protection circuit.
Message
"Att UL"
: Too
high a contact
voltage was
detected
Page 51
)
If, when using the P-PE mode the
instrument caries out the test and
detects an earth resistance higher
than 1999Ω, a screen similar to this is
displayed for 5 seconds after which
time the screen reverts to the initial
display.
Value of contact voltage Ut detected refers to the
value of the RCD current set. Resolution 1V.
*
SAVE
: *The tests can be stored by pressing the SAVE key twice
SAVING
* VR2240 only
RCD LOOP
>1999Ω
P-PE
31V 0 A
51
Message ">1999":
The instrument
detects an earth
resistance higher
than 1999Ω.
Page 52
4.6. PHASE SEQUENCE
Turn the switch to the
position.
4.6.1. Procedure for PHASE SEQUENCE testing
1. Connect the three red, black and green connectors of the single test leads to the corresponding
input terminals of the instrument P, N, E (see possible connections in the following picture).
When testing at loose cables or busbars, connect the crocodile clips to the free ends of these.
Caution.
High voltage may exist between phase conductors
L1
L2
L3
R
S
T
N
Green
CAT III
(P)
EL2NL3P
INPUT MAX
440 V P-N-E
250 V
L1
Black
Red
Connections for phase sequence indication
L1=red cable, L2=black cable, L3=green cable
2. Connect the crocodile clips to the three phases of the system under test.
The instrument displays the following screen:
Voltage value between Phase1 and Phase2
Voltage value between Phase3 and Phase1
Voltage value between Phase2 and Phase3
388V 388V
386V
52
Page 53
FUNC
3. Press the FUNC key to display the three delta voltages L1-2, L2-3, L3-1 in
turn. The instrument will display a screen similar to this:
Voltage value between Phase1 and Phase2
sampled when the FUNC key is pressed.
386 V
"L12": indicates that the value reported is the
voltage measured between Phase1 and Phase2.
4. Press the GO key to start the phase sequence test. At the end of the test,
GO
screens similar to the following will be displayed:
)
At the end of the test the instrument
displays a screen similar to this
indicating correct phase sequence
I.E. the red lead is connected to the
phase1=L1, the black lead to the
phase2=L2 and green lead to the
phase3=L3.
)
At the end of the test the instrument
displays a screen similar to this
indicating wrong phase sequence
"213": indicates that the phase sequence is wrong.
.
When “Measuring” is indicated on the display, the instrument is carrying out
a test. Never disconnect test leads while “Measuring” is displayed.
*
ESC
*Press the ESC key again to display the 3 voltage values L12, L23, L31 existing
between the phases of the electrical system (see the screen on page.52).
*
SAVE
: *The tests can be stored by pressing the SAVE key twice
SAVING
* VR2240 only
.
WARNING
L12
123
213
Message "123":
indicates that the
phase sequence
is correct.
53
Page 54
4.6.2. Other situations which may occur during phase sequence tests
)
if the voltage between each phase is
lower than 100V, the instrument does
not perform the test and displays a
screen similar to this.
Message “Lo VOL tAG”: the instrument detects
low voltage between at least 2 phases. The
instrument does not perform the test.
VOL AG
L
*
SAVE
THIS RESULT CANNOT BE SAVED
.
Red cable=L1 is not connected to one phase of the
installation. No voltage between phase L1 and
phase L2 (L1-L2).
Red cable= L1 is not connected to one phase of
the installation. No voltage between phase L3 and
phase L1 (L3- L1).
0V 388V
0V
)
If two or more cables of the instrument
are not connected, a screen similar to
this is displayed.
0V 0V
0V
*
SAVE
: *The tests can be stored by pressing the SAVE key twice
SAVING
* VR2240 only
54
Voltage between
phase L2 and
phase L3
Page 55
easurement saved
5. *HOW TO SAVE, RECALL AND CLEAR DATA STORED IN MEMORY (VR2240 ONLY
5.1. SAVE: "SAVE" KEY
To store the result of any test carried out, proceed as follows:
1. Press the SAVE key once.
SAVE
)
If the memory of the instrument
contains previously stored test results,
a screen similar to this is displayed.
The memory location in which the measurement
results will be stored.
Value of the parameter P related to the
m
.
LOOP
3
P02
)
If the test cannot be saved the
instrument displays a screen similar to
this.
UL▼
2. Use the keys U
parameter P related to the measurement to be saved. This parameter
S▲
helps the operator to identify the tests performed.
▼, S▲ to increase or decrease the value of the
L
LOOP
MEM
Example: if carrying out tests in different rooms within a building, the
operator can associate the measurements performed in a
room with a given value of the parameter P. Different values
of the parameter P will correspond to different rooms.
3. Press the SAVE key again, the instrument emits two sound signals
SAVE
confirming that the test results have been stored.
ESC
Press the ESC key to leave the memory menu and go back to the
selected measurement.
VR2240 only
)
55
Page 56
easureme
5.2. *RECALL: "RCL" KEY (VR2240 ONLY
)
If you want to recall
the stored test results proceed as follows:
1. Press the RCL key.
RCL
)
If the memory of the instrument
contains previously stored test results,
a screen similar to this is displayed.
The memory location in which the measurement
result was stored to.
Value of the parameter P related to the
m
nt saved.
MEM
3
P02
)
If memory of the instrument does not
contain any test results, a screen
similar to this is displayed.
LOOP
Cl
UL▼
2. Use the keys U
S▲
▼, S▲ to select the memory location to be displayed.
L
3. Press the DISP key to display the test result stored within the selected
DISP
memory location.
UL▼
4. Use the keys U
S▲
ESC
Press the ESC key to leave the memory menu and return to the
▼, S▲ again to return to the memory locations.
L
standby screen.
VR2240 only
56
Page 57
esults are stored
easureme
5.3. *CLEAR: "CLR" KEY (VR2240 ONLY
If you want to delete
the stored tests results, proceed as follows:
)
1. Press the RCL key. The instrument displays a screen similar to this:
RCL
The memory location in which the measurement
r
in.
MEM
3
P02
Value of the parameter P related to the
m
2. Use the keys U
nt saved.
UL▼
▼, S▲ to select the number of the memory location.
S▲
WARNING: the instrument will delete the results stored from the
L
memory location selected to the last full one.
3. Press the DISP key to display the test result related to the memory
DISP
location selected. If more than one result is stored in the memory
location (Eg: RCD test under AUTO mode) it is necessary to press
DISP more than once to display them.
4. Press CLR once. The symbol "
CLR
clr" is blinks. You now have two options:
MEM
Blinking.
C l
08
VR2240 only
CLR
Press CLR again. The results selected will be deleted
starting from the one selected to the last one saved.
ESC
Press ESC to cancel deletion
disappears.
. The blinking symbol "clr"
57
Page 58
ESC
Press the ESC key to leave the memory menu and go back to the
selected measurement.
Example: 97 tests have been stored in the instrument.
If you want to delete the tests from 43 to 97, proceed as follows:
- Press RCL.
- Use the keys U
- Press CLR. “CLR” will blink on the display, 43 is displayed on the left and 97
▼, S▲ to select the 43rd memory location.
L
on the right.
- Press CLR. The tests from 43 to 97 are deleted.
VR2240 only
58
Page 59
6. *RESETTING THE INSTRUMENT AND DEFAULT PARAMETERS (VR2240
ONLY)
6.1. RESET PROCEDURE
1. Press the keys DISP, CLR, RCL at the same time and and turn the rotary switch to any
test function.
2.
The screen shown here is
displayed for approximately 5
seconds, during which the
instrument emits a sound signal
and then displays the screen relative
to the function selected with the
rotary switch.
3. WARNING: the reset procedure will delete all the stored tests and it will set the
default parameters in the instrument.
Before carrying out a reset procedure, download the stored tests.
6.2. DEFAULT PARAMETERS.
Function Parameter RESET default parameter
LOWΩ
R
ISO
RCD type
A/AC
LOOP ZS/IK
Memory
Mode AUTO
Calibration Offset 0
Mode R+/R- TIMER TIMER is set at 3s
Mode MAN
Test voltage 500V
Mode TIMER TIMER is set at 60s
Mode x1
Test differential current 30mA
Contact voltage limit 50V
Mode P-N
Parameter P P = 1
Memory state 0
VR2240 only
es
59
Page 60
7. *CONNECTION TO A PC (VR2240 ONLY)
The connection from the VR2240 to a PC is made using the optional infra red data lead
VRTL1 connected to the PC serial port. The optional software package VRSOFT1 provides
the facility to download and print results onto a form (All items sold separately).
Before connecting the VR2240 to a PC, it is necessary to select and configure the COM port
on the PC used for data transfer. To set this, start the software and refer to the help provided
with the VRSOFT1 download application.
WARNING
To transfer the stored data from the VR2240 to the PC, follow the directions below.
: The selected port should NOT be shared by other devices or applications (eg.
mouse, modem, etc.).
1. Turn the rotary switch to the RS232 position (In the case of the VR2230, this
position is marked “CAL” and is only used at the point of manufacture and is
of no use to the end user of the instrument.)
FUNC
2. Using the FUNC key, select the modes "Prn ALL" or "Prn n1 n2", to
display the following screens respectively:
9 Press GO to start printing all of the
stored test results.
9 Press ESC to stop printing immediately.
indicates the total number of results stored in
memory.
9 Press GO to start printing the test results
from memory locations n1 to memory
locations n2 inclusive. Note that the printing
order is that of the increasing value of the
parameter P, NOT memory location order.
Ensure the range n1 to n2 cover all the
results you need.
9 Press ESC to stop printing immediately.
All 125
P
P
13
25
Indicates the memory cell which will be printed as the
last one.
Transmission speed on the PC is set to 4800 baud to match the output from VR2240.
Note
VR2240 only
.
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8. *PRINTING WITH AN OPTIONAL SERIAL PRINTER (VR2240 ONLY)
The connection from the VR2240 to the printer VRPRINT1 is made using the infra red data
lead VRTL1, in conjunction with printer adaptor cable TL130 (all items sold separately).
To transfer the stored data from the VR2240 to the printer, follow the directions below.
FUNC
1. Turn the rotary switch to the RS232 position. (In the case of the VR2230,
this position is marked “CAL” and is only used at the point of manufacture
and is of no use to the end user of the instrument.)
3. Using the FUNC key, select the modes "Prn ALL" or "Prn n1 n2", to display
the following screens respectively:
9 Press GO to start printing all of the
stored test results.
9 Press ESC to stop printing immediately.
indicates the total number of results stored in
memory.
9 Press GO to start printing the test results
from memory locations n1 to memory
locations n2 inclusive. Note that the printing
order is that of the increasing value of the
parameter P, NOT memory location order.
Ensure the range n1 to n2 cover all the
results you need.
9 Press ESC to stop printing immediately.
P
All 125
P
13
25
Indicates the memory cell which will be printed as the
last one.
Transmission speed on the printer is set to 4800 baud to match the output from the
Note
VR2240.
* VR2240 only
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9. OPTIONAL ACCESSORIES & MAINTENANCE
Accessories
Infra red data lead *VRTL1
Download software *VRSOFT1
Mini printer *VRPRINT1
Data Lead VRPRINT1 to VR2240 *TL130
Test lead (GB 13A plug) TL206
Fused test lead set TL54
Cleaning
Maintenance consists of periodic cleaning.
The exterior of the instrument can be cleaned with a dry clean cloth to remove any oil,
grease or grime. Never use liquid solvents or detergents.
Repairs or servicing not covered in this manual should only be performed by qualified
personnel.
Calibration
The recommended calibration interval is 12 months.
Martindale Electric will carry out routine calibration (on a chargeable basis) if the
instrument is returned, carriage paid, to the address on the final page of this document.
Alternatively, a chargeable collection and return service is available. Please call our
calibration and service department on 01923 650620 for further details.
Storage Conditions
The Veritest should be kept in warm, dry conditions away from direct sources of heat or
sunlight and in such a manner as to preserve the working life of the instrument.
Warranty
Faults in manufacture and materials are fully guaranteed for 24 months from date
of invoice and will be rectified by us free of charge, provided the unit has not been
tampered with and is returned to us with its housing unopened. Damage due to
dropping, abuse or misuse is not covered by the guarantee. Nothing in these
instructions reduces your statutory rights.
* VR2240 only
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10. TECHNICAL SPECIFICATIONS
10.1. TECHNICAL FEATURES
Accuracy is indicated as [% of reading + number of digits]. It refers to the atmospheric
conditions listed in paragraph 10.2.1.
Continuity (Low
R+TIMER, R-TIMER
Test current >200mA DC up to 16Ω (include the resistance of the calibration)
Test current resolution 1mA
Open circuit Test Voltage 9V
Insulation resistance (R
Rated Test voltage (V)
Automatic selection of the measuring range
Open circuit voltage Rated voltage test –0% +10%
Short circuit current <3,0mA - 500V
<2,0mA - 50V, 100V, 250V, 1000V
Test current on load: >1mA @ V
If the instrument measures a voltage higher than 30V, the instrument does not perform the test.
RCD tripping tests
Type of RCD AC, A
Range of phase to earth voltage: (100 - 265) V
Rated tripping currents (I
Test frequency 50Hz ± 0.5 Hz
* VR2240 only
Ω)
Test mode
AUTO, R+, R-
50*
100*
250
500
1000
Measuring range (Ω) Resolution (Ω)
0.01 - 19.99 0.01
20.0 - 99.9 0.1
0.01 - 9.99 0.01
40mA DC from 16Ω to 99.9Ω
)
ISO
Measurable range (MΩ)
at rated test voltage
0.05 - 19.99 0.01
20.0 - 49.9 0.1
50.0 - 99.9 0.1
0.10 - 19.99 0.01
20.0 - 99.9 0.1
100.0 - 199.9 0.1
0.23 - 19.99 0.01
20.0 - 199.9 0.1
200 - 249 1
250 - 499 1
0.25 - 19.99 0.01
20.0 - 199.9 0.1
200 - 499 1
500 - 999 1
0.90 - 19.99 0.01
20.0 - 199.9 0.1
200 - 999 1
1000 - 1999 1
across R
Test
) 10mA, 30mA, 100mA, 300mA, 500mA
∆N
Resolution (MΩ)
=(1000 x V
load
)Ω
Test
63
Accuracy
±(2% rdg + 2 dgt)
±(2% rdg + 2 dgt)
Accuracy
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
Page 64
Tripping time (t
Measuring range (ms) Resolution (ms) Accuracy
½ I∆N, I∆N 0 - 999
2 I
0 - 200 general
∆N
0 - 250 selective
RCD 0 - 50 general
5 I
∆N
0 - 160 selective
NB. For RCD type A 500mA, the MAN x5 and AUTO tests are not available
)
∆N
1
Contact voltage
Measuring range (V) Resolution (V) Accuracy
0 - 2U
U
(UL): 25V or 50V
t Lim
Earth resistance R
Measuring range (Ω) Resolution (Ω)
Test current 0.5 I∆N of RCD (during RCD Ut test)
t Lim
without RCD tripping
A
1 - 1999
0.1 -0%,+(10%rdg+2dgt)
1Ω ±(5% rdg + 2 dgt)
Tripping current Ramp Test for RCD type A and AC (VR2240 ONLY
RCD with I
RCD with I
≤ 10mA
∆N
Type RCD
AC
A
> 10mA
∆N
Type RCD
AC
A
Measuring range I
(0.5 - 1.4) I
(0.5 - 2.4) I
Measuring range I
(0.5 - 1.4) I
(0.5 - 2) I
Resolution (mA)
(mA)
∆N
∆N
∆N
(mA)
∆N
∆N
∆N
0.1 I
Resolution (mA)
0.1 I
-0%, +10% I∆N
∆N
-0%, +10% I∆N
∆N
AC voltage
Electrical System Measuring range (V) Resolution (V) Accuracy
Single-phase system
Two or Three – phase system
0 - 265
0 - 460
1
Frequency
Measuring range (Hz) Resolution (Hz) Accuracy
15.3 – 99.9 0.1
±(0.1% rdg + 1 dgt)
Phase-Neutral Loop Impedance (LOOP Z
Test mode
P-P and P-N
Max peak test current 100V 3.17A test duration: 80ms
230V 6.64A test duration: 40ms
400V 11.5A test duration: 40ms
Accuracy current measurement ±10% I
Test voltage VPN 100V - 265V 50Hz + 0.5 Hz
V
Measuring range (Ω) Resolution (Ω)
0.03 - 19.99 0.01
20.0 -199.9 0.1
100V - 460V 50Hz + 0.5 Hz
PP
phase to phase or phase to neutral)
S/IK
max Pk
±(2% rdg + 2 dgt)
Accuracy
)
Accuracy I
Accuracy I
±(2% rdg + 2 dgt)
±(5% rdg + 2 dgt)
Accuracy
±(5% rdg + 2 dgt)
∆N
∆N
64
Page 65
max Pk
)
)
S/IK
Resolution (Ω)
0.01
0.1
1
Accuracy
±(5% rdg + 2 dgt)
Accuracy
±(5% rdg + 2 dgt)
Phase-Earth Loop Impedance (LOOP Z
Measuring range (Ω)
0.03 - 19.99
20.0 - 199.9
Max peak test current 100V 3.17A t est duration: 80ms
230V 6.64A test duration: 40ms
Accuracy current measurement ±10% I
Test voltage VPE 100V - 265V 50Hz +0.5 Hz
200 - 1999
Non-Trip Earth Resistance (R
Range (Ω) Resolution (Ω)
Test current 15mA
1 - 1999 1
a15mA
10.1.1. Safety standards
The instrument complies with: EN 61010-1 + A2 (1997), EN61557
Insulation: Class 2, double insulation
Pollution degree: 2
Inside use; max altitude: 2000m
Overvoltage category: CAT III 460V∼ P-N-E / 265V∼ to earth
10.1.2. General specifications
Mechanical features
Dimensions: 222(L) x 162(La) x 57(H)mm
Weight (batteries included): approx. 1000g
Power supply
Battery type: 6 batteries 1.5 V – LR6 – AA – AM3 – MN 1500
Low battery indication: The symbol
is displayed when the battery
voltage is too low.
Battery life: About 40 hours in stand-by or
500 Continuity (LowΩ) tests or
1000 LOOP or RCD or PHASE SEQUENCE
250 Insulation (R
) tests 500V/500kΩ or
ISO
Display
Features: LCD custom
*Memory: *350 tests
*Interface *optical RS232 to print or to download the tests
See accessory list for download leads & software
* VR2240 only
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10.2. ENVIRONMENT
10.2.1. Environmental working conditions
Reference temperature: 23° ± 5°C
Working temperature: -10°C – 50 °C
Relative humidity allowed: <80%
Storage temperature: -20 – 60 °C
Storage humidity: <80%
10.2.2. EMC
This instrument was designed in compliance with the EMC standards in force and
compatibility have been tested for EN61326-1 (1997) + A1 (1998)
This instrument complies with the requirements of the European Low Voltage
Directive 72/23/CEE (LVD) and EMC 89/336/CEE, amended with 93/68/CEE.
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11. SERVICE
Repair & Service
There are no user serviceable parts in this unit. Return to Martindale Electric Company Ltd if
faulty, unless fuse replacement only is necessary. Our service department will promptly quote
to repair any faults that occur outside the warranty period. Please call our service and
calibration department on 01923 650620 for further details.
67
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Other products available from Martindale Electric
th
Edition Testers
• 16
• Multifunction Testers
• Calibration Equipment
• Continuity Testers
• Electrician’s Kits
• Full Calibration and Repair Service
• Fuse Finders
• Digital Clamp Meters
• Digital Multimeters
• Microwave Leakage Detectors
• Motor Maintenance Equipment
• Non-Trip Loop Testers
• Pat Testers & Accessories
• Phase Rotation
• Proving Units
• Socket Testers
• Thermometers & Probes
• Test Leads
• Voltage Indicators
• Specialist Metrohm Testers (4 & 5kV)
• Specialist Drummond Testers
Martindale Electric Company Limited
Metrohm House, Penfold Trading Estate, Imperial Way, Watford, WD24 4YY, UK
Tel:+44(0)1923 441717 Fax:+44(0)1923 446900
E-mail: sales@martindale-electric.co.uk
Website: www.martindale-electric.co.uk
© Martindale Electric Company Ltd. 2006 LIT22302240 Rev 9
Registered in England No. 3387451
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