Mark on your equipment certifies that this equipment meets the requirements of the EU
(European Union) concerning safety and electromagnetic compatibility regulations
C.2.1 AT modification - G type RCD ..................................................................73
5
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TESTBOY TV 450 Preface
1 Preface
Congratulations on your purchase of the TESTBOY instrument and its accessories from
TESTBOY. The instrument was designed on a basis of rich experience, acquired
through many years of dealing with electric installation test equipment.
The TESTBOY instrument is professional, multifunctional, hand-held test instrument
intended to perform all the measurements required in order for a total inspection of
electrical installations in buildings. The following measurements and tests can be
performed:
In the models TESTBOY TV 450 and TESTBOY TV 450B
Voltage and frequency,
Continuity tests,
Insulation resistance tests,
RCD testing,
Fault loop / RCD trip-lock impedance measurements,
Line impedance,
Phase sequence,
Additionally, model TESTBOY TV 450 (Type B) includes:
Earthing resistance tests
The graphic display with backlight offers easy reading of results, indications,
measurement parameters and messages. Two LED Pass/Fail indicators are placed at
the sides of the LCD.
The operation of the instrument is designed to be as simple and clear as possible and
no special training (except for the reading this instruction manual) is required in order to
begin using the instrument.
In order for operator to be familiar enough with performing measurements in general
and their typical applications it is advisable to read TESTBOY handbook Guide for testing and verification of low voltage installations.
The instrument is equipped with the entire necessary accessory for comfortable testing.
6
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TESTBOY TV 450 Warnings and notes
2 Safety and operational considerations
2.1 Warnings and notes
In order to maintain the highest level of operator safety while carrying out various tests
and measurements, TESTBOY recommends keeping your TESTBOY instruments in
good condition and undamaged. When using the instrument, consider the following
general warnings:
The symbol on the instrument means »Read the Instruction manual
with special care for safe operation«. The symbol requires an action!
If the test equipment is used in a manner not specified in this user manual,
the protection provided by the equipment could be impaired!
Read this user manual carefully, otherwise the use of the instrument may
be dangerous for the operator, the instrument or for the equipment under
test!
Do not use the instrument or any of the accessories if any damage is
noticed!
If a fuse blows in the instrument, follow the instructions in this manual in
order to replace it!
Consider all generally known precautions in order to avoid risk of electric
shock while dealing with hazardous voltages!
Do not use the instrument in supply systems with voltages higher than
550 V!
Service intervention or adjustment is only allowed to be carried out by a
competent authorized personnel!
Use only standard or optional test accessories supplied by your
distributor!
Consider that older accessories and some of the new optional test
accessories compatible with this instrument only meet CAT III / 300 V
overvoltage safety rating! This means that maximal allowed voltage
between test terminals and ground is 300 V!
The instrument comes supplied with rechargeable Ni-Cd or Ni-MH battery
cells. The cells should only be replaced with the same type as defined on
the battery compartment label or as described in this manual. Do not use
standard alkaline battery cells while the power supply adapter is
connected, otherwise they may explode!
Hazardous voltages exist inside the instrument. Disconnect all test leads,
remove the power supply cable and switch off the instrument before
All normal safety precautions must be taken in order to avoid risk of
electric shock while working on electrical installations!
7
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TESTBOY TV 450 Warnings and notes
Warnings related to measurement functions:
Insulation resistance
Insulation resistance measurement should only be performed on de-energized
objects!
Do not touch the test object during the measurement or before it is fully
discharged! Risk of electric shock!
When an insulation resistance measurement has been performed on a capacitive
object, automatic discharge may not be done immediately! The warning message
and the actual voltage is displayed during discharge until voltage drops below
10 V.
Do not connect test terminals to external voltage higher than 600 V (AC or DC) in
order not to damage the test instrument!
Continuity functions
Continuity measurements should only be performed on de-energized objects!
Parallel impedances or transient currents may influence test results.
Testing PE terminal
If phase voltage is detected on the tested PE terminal, stop all measurements
immediately and ensure the cause of the fault is eliminated before proceeding
with any activity!
Notes related to measurement functions:
General
The indicator means that the selected measurement cannot be performed
because of irregular conditions on input terminals.
Insulation resistance, continuity functions and earth resistance measurements
(TESTBOY TV 450 (TYPE B)) can only be performed on de-energized objects.
PASS / FAIL indication is enabled when limit is set. Apply appropriate limit value
for evaluation of measurement results.
In the case that only two of the three wires are connected to the electrical
installation under test, only voltage indication between these two wires is valid.
Insulation resistance
If voltages of higher than 10 V (AC or DC) is detected between test terminals, the
insulation resistance measurement will not be performed. If voltages of higher
than 10 V (AC or DC) is detected between test terminals, the insulation
resistance measurement will not be performed.
The instrument automatically discharge tested object after finished
measurement.
A double click of TEST key starts a continuous measurement.
8
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TESTBOY TV 450 Warnings and notes
Continuity functions
If voltages of higher than 10 V (AC or DC) is detected between test terminals, the
continuity resistance test will not be performed.
Before performing a continuity measurement, where necessary, compensate test
lead resistance.
RCD functions
Parameters set in one function are also kept for other RCD functions!
The measurement of contact voltage does not normally trip an RCD. However,
the trip limit of the RCD may be exceeded as a result of leakage current flowing
to the PE protective conductor or a capacitive connection between L and PE
conductors.
longer to complete but offers much better accuracy of fault loop resistance (in
comparison to the RL sub-result in Contact voltage function).
RCD trip-out time and RCD trip-out current measurements will only be performed
if the contact voltage in the pre-test at nominal differential current is lower than
the set contact voltage limit!
The autotest sequence (RCD AUTO function) stops when trip-out time is out of
allowable time period.
Z-LOOP
The low limit prospective short-circuit current value depends on fuse type, fuse
current rating, fuse trip-out time and impedance scaling factor.
The specified accuracy of tested parameters is valid only if the mains voltage is
stable during the measurement.
Fault loop impedance measurements will trip an RCD.
The measurement of fault loop impedance using trip-lock function does not
normally trip an RCD. However, the trip limit may be exceeded as a result of
leakage current flowing to the PE protective conductor or a capacitive connection
between L and PE conductors.
Z-LINE
In case of measurement of Z
Line-Line
with the instrument test leads PE and N
connected together the instrument will display a warning of dangerous PE
voltage. The measurement will be performed anyway.
Specified accuracy of tested parameters is valid only if mains voltage is stable
during the measurement.
L and N test terminals are reversed automatically according to detected terminal
voltage (except in UK version).
9
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TESTBOY TV 450 Battery and charging
2.2 Battery and charging
The instrument uses six AA size alkaline or rechargeable Ni-Cd or Ni-MH battery cells.
Nominal operating time is declared for cells with nominal capacity of 2100 mAh.
Battery condition is always displayed in the lower right display part.
In case the battery is too weak the instrument indicates this as shown in figure 2.1. This
indication appears for a few seconds and then the instrument turns itself off.
Figure 2.1: Discharged battery indication
The battery is charged whenever the power supply adapter is connected to the
instrument. The power supply socket polarity is shown in figure 2.2.Internal circuit
controls charging and assures maximum battery lifetime.
-
+
Figure 2.2: Power supply socket polarity
The instrument automatically recognizes the connected power supply adapter and
begins charging.
Symbols:
Indication of battery charging
Figure 2.3: Charging indication
When connected to an installation, the instruments battery compartment can
contain hazardous voltage inside! When replacing battery cells or before
opening the battery/fuse compartment cover, disconnect any measuring
accessory connected to the instrument and turn off the instrument,
Ensure that the battery cells are inserted correctly otherwise the instrument will
not operate and the batteries could be discharged.
If the instrument is not to be used for a long period of time, remove all batteries
from the battery compartment.
Alkaline or rechargeable Ni-Cd or Ni-MH batteries (size AA) can be used.
TESTBOY recommends only using rechargeable batteries with a capacity of
2100mAh or above.
Do not recharge alkaline battery cells!
Use only power supply adapter delivered from the manufacturer or distributor of
the test equipment to avoid possible fire or electric shock!
10
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TESTBOY TV 450 Battery and charging
2.2.1 New battery cells or cells unused for a longer period
Unpredictable chemical processes can occur during the charging of new battery cells or
cells that have been left unused for a longer period (more than 3 months). Ni-MH and
Ni-Cd cells can be subjected to these chemical effects (sometimes called the memory
effect). As a result the instrument operation time can be significantly reduced during the
initial charging/discharging cycles of the batteries.
In this situation, TESTBOY recommend the following procedure to improve the battery
lifetime:
Procedure Notes
¾Completely charge the battery. At least 14h with in-built charger.
This can be performed by using the
¾ Completely discharge the battery.
¾ Repeat the charge / discharge cycle
at least 2-4 times.
Notes:
The charger in the instrument is a pack cell charger. This means that the battery
cells are connected in series during the charging. The battery cells have to be
equivalent (same charge condition, same type and age).
One different battery cell can cause an improper charging and incorrect
discharging during normal usage of the entire battery pack (it results in heating of
the battery pack, significantly decreased operation time, reversed polarity of
defective cell,…).
If no improvement is achieved after several charge / discharge cycles, then each
battery cell should be checked (by comparing battery voltages, testing them in a
cell charger, etc). It is very likely that only some of the battery cells are
deteriorated.
The effects described above should not be confused with the normal decrease of
battery capacity over time. Battery also loses some capacity when it is repeatedly
charged / discharged. Actual decreasing of capacity, versus number of charging
cycles, depends on battery type. This information is provided in the technical
specification from battery manufacturer.
instrument normally until the instrument is
fully discharged.
Four cycles are recommended in order to
restore the batteries to their normal
capacity.
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TESTBOY TV 450 Standards applied
2.3 Standards applied
The TESTBOY instruments are manufactured and tested in accordance with the
following regulations:
Electromagnetic compatibility (EMC)
EN 61326 Electrical equipment for measurement, control and laboratory
use – EMC requirements
Class B (Hand-held equipment used in controlled EM environments)
Safety (LVD)
EN 61010-1 Safety requirements for electrical equipment for measurement, control
and laboratory use – Part 1: General requirements
EN 61010-031 Safety requirements for hand-held probe assemblies for electrical
measurement and test
EN 61010-2-032 Safety requirements for electrical equipment for measurement,
control, and laboratory use - Part 2-032: Particular requirements for
hand-held and hand-manipulated current sensors for electrical test
and measurement
Functionality
EN 61557 Electrical safety in low voltage distribution systems up to 1000 VAC
Other reference standards for testing RCDs
EN 61008 Residual current operated circuit-breakers without integral overcurrent
EN 61009 Residual current operated circuit-breakers with integral overcurrent
EN 60364-4-41 Electrical installations of buildings
BS 7671 IEE Wiring Regulations (17
AS / NZ 3760 In-service safety inspection and testing of electrical equipment
Note about EN and IEC standards:
Text of this manual contains references to European standards. All standards of
EN 6XXXX (e.g. EN 61010) series are equivalent to IEC standards with the same
number (e.g. IEC 61010) and differ only in amended parts required by European
harmonization procedure.
and 1500 VAC – Equipment for testing, measuring or monitoring of
protective measures
Part 1 General requirements
Part 2 Insulation resistance
Part 3 Loop resistance
Part 4 Resistance of earth connection and equipotential
bonding
Part 5 Resistance to earth (TESTBOY TV 450 (TYPE B) only)
Part 6 Residual current devices (RCDs) in TT and TN systems
Part 7.Phase sequence
Part 10 Combined measuring equipment
protection for household and similar uses
protection for household and similar uses
Part 4-41 Protection for safety – protection against electric shock
th
edition)
12
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TESTBOY TV 450 Front panel
3 Instrument description
3.1 Front panel
1
2
3
4
5
12
11
10
9
8
6
7
Figure 3.1: Front panel (picture of TESTBOY TV 450 (TYPE B))
Legend:
* Model TESTBOY TV 450 (TYPE B)
** Model TESTBOY TV 450
1 LCD 128 x 64 dots matrix display with backlight.
TEST
3 UP
4 DOWN
5* MEM Store / recall / clear tests in memory of instrument.
5** CAL Calibrates test leads in Continuity functions.
Modifies selected parameter.
Starts measurements. 2 TEST
Acts also as the PE touching electrode.
6 Function selectors Selects test function.
Backlight,
7
Contrast
8 ON / OFF
9* HELP / CAL
Changes backlight level and contrast.
Switches the instrument power on or off.
The instrument automatically turns off 15 minutes after the
last key was pressed.
Accesses help menus.
In RCD Auto toggles between top and bottom parts of results
field.
Calibrates test leads in Continuity functions.
13
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TESTBOY TV 450 Front panel
Accesses help menus. 9**
HELP
10 TAB Selects the parameters in selected function.
11 PASS Green indicator
12 FAIL Red indicator
In RCD Auto toggles between top and bottom parts of results
field.
Indicates PASS/ FAIL of result.
14
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TESTBOY TV 450 Connector panel
3.2 Connector panel
Figure 3.2: Connector panel (picture of TESTBOY TV 450 (TYPE B))
Legend:
* Model TESTBOY TV 450 (TYPE B)
** Model TESTBOY TV 450
1 Test connector Measuring inputs / outputs
2 Protection cover
3 Charger socket
4* USB connector Communication with PC USB (1.1) port.
5* PS/2 connector
5** PS/2 connector Serial port for upgrading the instrument.
Warnings!
Maximum allowed voltage between any test terminal and ground is 600 V!
Maximum allowed voltage between test terminals is 600 V!
Maximum short-term voltage of external power supply adapter is 14 V!
Communication with PC serial port and connection to optional
measuring adapters.
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TESTBOY TV 450 Back side
3.3 Back side
Figure 3.3: Back side
Legend:
1 Side belt
2 Battery compartment cover
3 Fixing screw for battery compartment cover
4 Back panel information label
5 Holder for inclined position of the instrument
6 Magnet for fixing instrument close to tested item (optional)
Figure 3.4: Battery compartment
Legend:
1 Battery cells Size AA, alkaline or rechargeable NiMH / NiCd
2 Serial number label
3 Fuse M 0.315 A, 250 V
16
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TESTBOY TV 450 Display organization
3.4 Display organization
Function name
Result field
Test parameter field
Message field
Terminal voltage
monitor
Figure 3.5: Typical function
display
Battery indication
3.4.1 Terminal voltage monitor
The terminal voltage monitor displays on-line the voltages on the test terminals and
information about active test terminals.
Online voltages are displayed together with test terminal indication. All
three test terminals are used for selected measurement.
Online voltages are displayed together with test terminal indication. L
and N test terminals are used for selected measurement.
L and PE are active test terminals; N terminal should also be connected
for correct input voltage condition.
3.4.2 Battery indication
The indication indicates the charge condition of battery and connection of external
charger .
Battery capacity indication.
Low battery.
Battery is too weak to guarantee correct result. Replace or
recharge the battery cells.
Recharging in progress (if power supply adapter is connected).
3.4.3 Message field
In the message field warnings and messages are displayed.
Measurement is running, consider displayed warnings.
Conditions on the input terminals allow starting the measurement;
consider other displayed warnings and messages.
Conditions on the input terminals do not allow starting the
measurement, consider displayed warnings and messages.
17
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TESTBOY TV 450 Display organization
RCD tripped-out during the measurement (in RCD functions).
Instrument is overheated. The measurement is prohibited until the
temperature decreases under the allowed limit.
Result(s) can be stored. (model TESTBOY TV 450 (TYPE B))
High electrical noise was detected during measurement. Results may
be impaired.
L and N are changed.
Warning! High voltage is applied to the test terminals.
Warning! Dangerous voltage on the PE terminal! Stop the activity
immediately and eliminate the fault / connection problem before
proceeding with any activity!
Test leads resistance in Continuity measurement is not compensated.
Test leads resistance in Continuity measurement is compensated.
High resistance to earth of test probes. Results may be impaired.
(model TESTBOY TV 450 (TYPE B))
3.4.4 Result field
Measurement result is out of pre-set limits (FAIL).
Measurement is aborted. Consider displayed warnings and messages.
3.4.5 Sound warnings
Measurement result is inside pre-set limits (PASS).
Continuous sound Warning! Dangerous voltage on the PE terminal is detected.
3.4.6 Help screens
HELP
Help menus are available in all functions. The Help menu contains schematic diagrams
for illustrating how to properly connect the instrument to electric installation. After
selecting the measurement you want to perform, press the HELP key in order to view
the associated Help menu.
Keys in help menu:
UP / DOWN
HELP
Function selectors / TEST
Opens help screen.
Selects next / previous help screen.
Scrolls through help screens.
Exits help menu.
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TESTBOY TV 450 Display organization
Figure 3.6: Examples of help screens
3.4.7 Backlight and contrast adjustments
With the BACKLIGHT keybacklight and contrast can be adjusted.
Click
Keep pressed for 1 s
Keep pressed for 2 sBargraph for LCD contrast adjustment is displayed.
Toggles backlight intensity level.
Locks high intensity backlight level until power is turned off or the
key is pressed again.
Figure 3.7: Contrast adjustment menu
Keys for contrast adjustment:
DOWN
UP
TEST
Function selectors
Reduces contrast.
Increases contrast.
Accepts new contrast.
Exits without changes.
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TESTBOY TV 450 Instrument set and accessories
3.5 Instrument set and accessories
3.5.1 Standard set TESTBOY TV 450
Instrument
Short instruction manual
Calibration Certificate
Mains measuring cable
Test lead. 3 x 1.5 m
Test probe. 3 pcs
Crocodile clip. 3 pcs
Set of NiMH battery cells
Power supply adapter
CD with instruction manual, and “Guide for testing and verification of low
voltage installations” handbook.
Set of carrying straps
3.5.2 Standard set TESTBOY TV 450 (TYPE B)
Instrument
Short instruction manual
Calibration Certificate
Mains measuring cable
Test lead. 3 x 1.5 m
Test probe. 3 pcs
Crocodile clip. 3 pcs
Set of NiMH battery cells
Power supply adapter
CD with instruction manual, and “Guide for testing and verification of low
voltage installations” handbook and PC software TESTBOY TV 450
Set of carrying straps
RS232 - PS/2 cable
USB cable
3.5.3 Optional accessories
See the attached sheet for a list of optional accessories that are available on request
from your distributor.
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TESTBOY TV 450 Function selection
4 Instrument operation
4.1 Function selection
For selecting test function the FUNCTION SELECTOR shall be used.
Keys:
Select test / measurement function:
<VOLTAGE TRMS> Voltage and frequency and phase sequence.
<RISO> Insulation resistance.
<RLOWΩ> Resistance of earth connections and bondings.
FUNCTION
SELECTOR
UP/DOWN
TAB
TEST
MEM
Keys in test parameter field:
UP/DOWN
TAB
FUNCTION SELECTOR
MEM
General rule regarding enabling parameters for evaluation of measurement / test result:
Parameter
See Chapter 5 for more information about the operation of the instrument test functions.
<Zline> Line impedance.
<Zloop> Fault loop impedance.
<RCD> RCD testing.
<EARTH RE> Resistance to earth (model TESTBOY TV 450 (TYPE
B)).
<SETTINGS> General instrument settings.
Selects sub-function in selected measurement function.
Selects the test parameter to be set or modified.
Runs selected test / measurement function.
Stores measured results / recalls stored results (model TESTBOY TV
450 (TYPE B)).
Changes the selected parameter.
Selects the next measuring parameter.
Toggles between the main functions.
Stores measured results / recalls stored results
(model TESTBOY TV 450 (TYPE B)).
OFF
ON
No limit values, indication: _ _ _.
Value(s) – results will be marked as PASS or FAIL in
accordance with selected limit.
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TESTBOY TV 450 Settings
4.2 Settings
Different instrument options can be set in the SETTINGS menu.
Options in both models are:
Selection of language,
Setting the instrument to initial
values,
Selection of reference standard for
RCD test,
Entering Isc factor,
Commander support.
Additional options in model TESTBOY TV
450 (TYPE B) are:
Recalling and clearing stored results,
Setting the date and time,
Figure 4.1: Options in Settings menu
Keys:
UP / DOWN
TEST
Function selectors
Selects appropriate option.
Enters selected option.
Exits back to main function menu.
4.2.1 Language
In this menu the language can be set.
Keys:
UP / DOWN
TEST
Function selectors
Selects language.
Confirms selected language and exits to settings menu.
Exits back to main function menu.
Figure 4.2: Language selection
22
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TESTBOY TV 450 Settings
4.2.2 Initial settings
In this menu the instrument settings and
measurement parameters and limits can be
set to initial (factory) values.
Figure 4.3: Initial settings dialogue
Keys:
TEST
Function selectors
Warning:
Customized settings will be lost when this option is used!
If the batteries are removed for more than 1 minute the custom made settings will
be lost.
The default setup is listed below:
* model TESTBOY TV 450 (TYPE B)
Instrument setting Default value
Contrast As defined and stored by adjustment procedure
Isc factor 1.00
RCD standards EN 61008 / EN 61009
Language English
Commander Enabled
Function
Sub-function
EARTH RE* No limit
R ISO No limit
Low Ohm Resistance
R LOWΩ
CONTINUITY* No limit
Z - LINE Fuse type: none selected
Z - LOOP Fuse type: none selected
Zs rcdFuse type: none selected
RCD RCD t
Restores default settings.
Exits back to main function menu without changes.
Parameters / limit value
Utest = 500 V
No limit
Nominal differential current: IΔN=30 mA
RCD type: G
Test current starting polarity: (0°)
Limit contact voltage: 50 V
Current multiplier: ×1
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TESTBOY TV 450 Settings
Note:
Initial settings (reset of the instrument) can be recalled also if the TAB key is
pressed while the instrument is switched on.
4.2.3 Memory (model TESTBOY TV 450 (TYPE B))
In this menu the stored data can be recalled
and deleted. See chapter 6 Data handling for
more information.
Figure 4.4: Memory options
Keys:
UP / DOWN Selects option.
TEST
Function selectors
Enters selected option.
Exits back to main function menu.
4.2.4 Date and time (model TESTBOY TV 450 (TYPE B))
In this menu date and time can be set.
Figure 4.5: Setting date and time
Keys:
TAB
Selects the field to be changed.
UP / DOWN Modifies selected field.
TEST
Function
Confirms new setup and exits.
Exits back to main function menu.
selectors
Warning:
If the batteries are removed for more than 1 minute the set time and date will be
lost.
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TESTBOY TV 450 Settings
4.2.5 RCD standard
In this menu the used standard for RCD
tests can be set.
Figure 4.6: Selection of RCD test
standard
Keys:
UP / DOWN
TEST
Function selectors
Maximum RCD disconnection times differ in various standards.
The trip-out times defined in individual standards are listed below.
Trip-out times according to EN 61008 / EN 61009:
General RCDs
(non-delayed)
Selective RCDs
(time-delayed)
t
> 300 ms tΔ < 300 ms tΔ < 150 ms tΔ < 40 ms
Δ
t
> 500 ms 130 ms < tΔ < 500 ms 60 ms < tΔ < 200 ms 50 ms < tΔ < 150 ms
Δ
Trip-out times according to EN 60364-4-41:
General RCDs
(non-delayed)
Selective RCDs
(time-delayed)
t
> 999 ms tΔ < 999 ms tΔ < 150 ms tΔ < 40 ms
Δ
t
> 999 ms 130 ms < tΔ < 999 ms 60 ms < tΔ < 200 ms 50 ms < tΔ < 150 ms
Δ
Trip-out times according to BS 7671:
General RCDs
(non-delayed)
Selective RCDs
(time-delayed)
t
> 1999 ms tΔ < 300 ms tΔ < 150 ms tΔ < 40 ms
Δ
t
> 1999 ms 130 ms < tΔ < 500 ms 60 ms < tΔ < 200 ms 50 ms < tΔ < 150 ms
Δ
Trip-out times according to AS/NZ
RCD type
I
II
[mA] tΔ t
I
ΔN
≤ 10
> 10 ≤ 30
III > 30
IV
S
*)
Minimum test period for current of ½×IΔN, RCD shall not trip-out.
**)
Test current and measurement accuracy correspond to AS/NZ requirements.
> 30 > 999 ms
Selects standard.
Confirms selected standard.
Exits back to main function menu.
*)
½×I
½×I
½×I
I
ΔN
*)
I
ΔN
*)
I
ΔN
*)
½×I
I
ΔN
> 999 ms
2×IΔN 5×IΔN
ΔN
2×IΔN 5×IΔN
ΔN
2×IΔN 5×IΔN
ΔN
**)
:
2×IΔN 5×IΔN
ΔN
t
Δ
40 ms 40 ms 40 ms
300 ms 150 ms40 ms
300 ms 150 ms40 ms
500 ms 200 ms 150 ms
130 ms 60 ms 50 ms Minimum non-actuating time
t
Δ
Δ
Note
Maximum break time
25
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TESTBOY TV 450 Settings
Maximum test times related to selected test current for general (non-delayed) RCD
Standard
½×IΔN I
2×IΔN 5×IΔN
ΔN
EN 61008 / EN 61009 300 ms 300 ms 150 ms 40 ms
EN 60364-4-41 1000 ms 1000 ms 150 ms 40 ms
BS 7671 2000 ms 300 ms 150 ms 40 ms
AS/NZ (I, II, III) 1000 ms 1000 ms 150 ms 40 ms
Maximum test times related to selected test current for selective (time-delayed) RCD
Standard
½×IΔN I
2×IΔN 5×IΔN
ΔN
EN 61008 / EN 61009 500 ms 500 ms 200 ms 150 ms
EN 60364-4-41 1000 ms 1000 ms 200 ms 150 ms
BS 7671 2000 ms 500 ms 200 ms 150 ms
AS/NZ (IV) 1000 ms 1000 ms 200 ms 150 ms
4.2.6 Isc factor
In this menu the Isc factor for calculation of
short circuit current in Z-LINE and Z-LOOP
measurements can be set.
Figure 4.7: Selection of Isc factor
Keys:
UP / DOWN
TEST
Function selectors
Sets Isc value.
Confirms Isc value.
Exits back to main function menu.
Short circuit current Isc in the supply system is important for selection or verification of
protective circuit breakers (fuses, over-current breaking devices, RCDs).
The default value of Isc factor (ksc) is 1.00. The value should be set according to local
regulative.
Range for adjustment of the Isc factor is 0.20 ÷ 3.00.
4.2.7 Commander support
The support for remote commanders can be
switched On/ Off in this menu.
Figure 4.8: Selection of commander
support
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TESTBOY TV 450 Settings
Keys:
UP / DOWN
TEST
Function selectors
Selects commander option.
Confirms selected option.
Exits back to main function menu.
Note:
This option is intended to disable the commander’s remote keys. In the case of
high EM interfering noise the operation of the commander’s key can be irregular.
27
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TESTBOY TV 450 Voltage, frequency, phase sequence
5 Measurements
5.1 Voltage, frequency and phase sequence
Voltage and frequency measurement is always active in the terminal voltage monitor. In
the special VOLTAGE TRMS menu the measured voltage, frequency and information
about detected three-phase connection can be stored. Phase sequence measurement
conforms to the EN 61557-7 standard.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.1: Voltage in single
phase system
Test parameters for voltage measurement
There are no parameters to set.
Connections for voltage measurement
L3
L2
L1
N
PE
3
2
1
L
/
L
L
/
/
E
L
N
P
result 1.2.3result 2.1.3
3
L
/
E
P
2
1
L
L
/
/
L
N
Figure 5.2: Connection of 3-wire test lead and optional adapter in three-phase system
L1
L2
L3
N
PE
1
L
/
L
1
/
3
E
L
P
/
2
N
L
R
Ro
E
LPEN
N/L2
L
/
L
PE/L3
Figure 5.3: Connection of plug commander and 3-wire test lead in single-phase system
28
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TESTBOY TV 450 Voltage, frequency, phase sequence
Voltage measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select the VOLTAGE TRMS function using the function selector switch.
Connect test cable to the instrument.
Connect test leads to the item to be tested (see figures 5.2 and 5.3).
Store current measurement result by pressing the MEM key (optional)*.
Measurement runs immediately after selection of VOLTAGE TRMS function.
Figure 5.4: Examples of voltage measurement in three-phase system
Displayed results for single phase system:
Uln...........Voltage between phase and neutral conductors,
Ulpe.........Voltage between phase and protective conductors,
Unpe........Voltage between neutral and protective conductors,
The Insulation resistance measurement is performed in order to ensure safety against
electric shock through insulation. It is covered by the EN 61557-2 standard. Typical
applications are:
Insulation resistance between conductors of installation,
Insulation resistance of non-conductive rooms (walls and floors),
Insulation resistance of ground cables,
Resistance of semi-conductive (antistatic) floors.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.5: Insulation resistance
Test parameters for insulation resistance measurement
Uiso Test voltage [50 V, 100 V, 250 V, 500 V, 1000 V]
Limit
Figure 5.6: Connections for insulation measurement
30
Page 31
TESTBOY TV 450 Insulation resistance
Insulation resistance measuring procedure
* model TESTBOY TV 450 (TYPE B)
Select the INS function using the function selector switch.
Set the required test voltage.
Enable and set limit value (optional).
Disconnect tested installation from mains supply (and discharge insulation as
required).
Connect test cable to the instrument and to the item to be tested (see figure 5.6).
Press the TEST key to perform the measurement (double click for continuous
measurementand later press to stop the measurement).
After the measurement is finished wait until tested item is fully discharged.
Store the result by pressing the MEM key (optional)*.
Figure 5.7: Example of insulation resistance measurement result
Displayed results:
R.........................Insulation resistance
Um......................Test voltage – actual value.
31
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TESTBOY TV 450 Resistance of earth connection
5.3 Resistance of earth connection and equipotential
bonding
The resistance measurement is performed in order to ensure that the protective
measures against electric shock through earth connections and bondings are effective.
Two sub-functions are available:
R LOWΩ - Earth bond resistance measurement according to EN 61557-4 (200
mA),
CONTINUITY - Continuous resistance measurement performed with 7 mA
(model TESTBOY TV 450 (TYPE B)).
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.8: 200 mA RLOW Ω
Test parameters for resistance measurement
* model TESTBOY TV 450 (TYPE B)
TEST Resistance measurement sub-function [R LOWΩ, CONTINUITY*]
Limit
Maximum resistance [OFF, 0.1 Ω ÷ 20.0 Ω]
32
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TESTBOY TV 450 Resistance of earth connection
5.3.1 R LOWΩ, 200 mA resistance measurement
The resistance measurement is performed with automatic polarity reversal of the test
voltage.
Test circuit for R LOWΩ measurement
Figure 5.9: Connection of 3-wire test lead plus optional extension lead
Resistance to earth connection and equipotential bonding measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select continuity function using the function selector switch.
Set sub-function to R LOWΩ.
Enable and set limit (optional).
Connect test cable to the the instrument.
Compensate the test leads resistance (if necessary, see section 5.3.3).
Disconnect from mains supply and discharge installation to be tested.
Connect the test leads to the appropriate PE wiring (see figure5.9).
Press the TEST key to perform the measurement.
After the measurement is finished store the result by pressing the MEM button
(optional)*.
Figure 5.10: Example of RLOW result
Displayed result:
R................R LOWΩ resistance.
R+..............Result at positive polarity
R-...............Result at negative test polarity
33
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TESTBOY TV 450 Resistance of earth connection
5.3.2 Continuous resistance measurement with low current (model TESTBOY TV
450 (TYPE B))
In general, this function serves as standard Ω-meter with a low testing current. The
measurement is performed continuously without polarity reversal. The function can also
be applied for testing continuity of inductive components.
Test circuit for continuous resistance measurement
Figure 5.11: 3-wire test lead application
Continuous resistance measurement procedure
Select continuity function using the function selector switch.
Set sub-function CONTINUITY.
Enable and set the limit (optional).
Connect test cable to the instrument.
Compensate test leads resistance (if necessary, see section 5.3.3).
Disconnect from mains supply and discharge the object to be tested.
Connect test leads to the tested object (see figure 5.11).
Press the TEST key to begin performing a continuous measurement.
Press the TEST key to stop measurement.
After the measurement is finished, store the result (optional).
Figure 5.12: Example of continuous resistance measurement
Displayed result:
R............Resistance
Note:
Continuous buzzer sound indicates that measured resistance is less than 2 Ω.
34
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TESTBOY TV 450 Resistance of earth connection
p
5.3.3 Compensation of test leads resistance
This chapter describes how to compensate the test leads resistance in both continuity
functions, R LOWΩ and CONTINUITY (model TESTBOY TV 450 (TYPE B)).
Compensation is required to eliminate the influence of test leads resistance and the
internal resistances of the instrument on the measured resistance. The lead
compensation is therefore a very important feature to obtain correct result.
Each of R LOWΩ and CONTINUITY (model TESTBOY TV 450 (TYPE B)) has own
compensation. symbol is displayed if the compensation was carried out
successfully.
Circuits for compensating the resistance of test leads
/
N
L
2
/
E
P
L
3
L
/
L
1
/
N
L
2
3
/
E
P
L
L
/
L
1
rolongation lead
Figure 5.13: Shorted test leads
Compensation of test leads resistance procedure
Select R LOWΩ or CONTINUITY (model TESTBOY TV 450 (TYPE B)) function.
Connect test cable to the instrument and short the test leads together (see figure
5.13).
Press TEST to perform resistance measurement.
Press the CAL key to compensate leads resistance.
Figure 5.14: Results with old calibration
values
Figure 5.15: Results with new calibration
values
Note:
The highest value for lead compensation is 5 Ω. If the resistance is higher the
compensation value is set back to default value.
is displayed if no calibration value is stored.
35
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TESTBOY TV 450 Testing RCD
5.4 Testing RCDs
Various test and measurements are required for verification of RCD(s) in RCD protected
installations. Measurements are based on the EN 61557-6 standard.
The following measurements and tests (sub-functions) can be performed:
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.16: RCD test
Test parameters for RCD test and measurement
TEST RCD sub-function test [RCDt, RCD I, AUTO, Uc].
IΔN Rated RCD residual current sensitivity IΔN[10 mA, 30 mA, 100 mA, 300 mA,
500 mA, 1000 mA].
type
MUL
Ulim Conventional touch voltage limit [25 V, 50 V].
* Model TESTBOY TV 450 (TYPE B)
Notes:
The instrument is intended for testing of General (non-delayed) and Selective (timedelayed) RCDs, which are suited for:
Time delayed RCDs have delayed response characteristics. As the contact voltage pretest or other RCD tests influence the time delayed RCD it takes a certain period to
recover into normal state. Therefore a time delay of 30 s is inserted before performing
trip-out test by default.
RCD type [, ], test current waveform plus starting polarity [,,,,
*, *
].
Multiplication factor for test current [½, 1, 2, 5 IΔN].
Ulim can be selected in the Uc sub-function only.
Alternating residual current (AC type, marked with symbol),
Pulsating residual current (A type, marked with symbol).
Pulsating residual current (A type, marked with symbol).
Model TESTBOY TV 450 (Type B): DC residual current (B type, marked with
symbol).
36
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TESTBOY TV 450 Testing RCD
Connections for testing RCD
L1
L2
L3
N
PE
L
/
L
1
/
E
P
3
L
2
L
/
Ro
N
R
E
LPEN
Figure 5.17: Connecting the plug commander and the 3-wire test lead
5.4.1 Contact voltage (RCD Uc)
A current flowing into the PE terminal causes a voltage drop on earth resistance, i.e.
voltage difference between PE equipotential bonding circuit and earth. This voltage
difference is called contact voltage and is present on all accessible conductive parts
connected to the PE. It shall always be lower than the conventional safety limit voltage.
The contact voltage is measured with a test current lower than ½ IΔN to avoid trip-out of
the RCD and then normalized to the rated IΔN.
Contact voltage measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select theRCD function using the function selector switch.
Set sub-function Uc.
Set test parameters (if necessary).
Connect test cable to the instrument.
Connect test leads to the item to be tested (see figure 5.17).
Press the TEST key to perform the measurement.
Store the result by pressing the MEM key (optional)*.
The contact voltage result relates to the rated nominal residual current of the RCD and
is multiplied by an appropriate factor (depending on RCD type and type of test current).
The 1.05 factor is applied to avoid negative tolerance of result. See table 5.1 for detailed
contact voltage calculation factors.
37
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TESTBOY TV 450 Testing RCD
RCD type
AC G
AC
S
A G
A
S
A G
A
S
B G
B
S
Contact voltage Uc
proportional to
1.05×IΔN
2×1.05×IΔN
1.4×1.05×IΔN
2×1.4×1.05×IΔN
2×1.05×IΔN
2×2×1.05×IΔN
2×1.05×IΔN
2×2×1.05×IΔN
Rated IΔN
any
≥ 30 mA
Both models
< 30 mA
any Model TESTBOY
TV 450 (Type B)
only
Table 5.1: Relationship between Uc and I
Δ
N
Loop resistance is indicative and calculated from Uc result (without additional
U
proportional factors) according to:
R
=.
L
C
I
N
Δ
UK version
Figure 5.18: Example of contact voltage measurement results
Displayed results:
Uc........Contact voltage.
Rl.........Fault loop resistance.
5.4.2 Trip-out time (RCDt)
Trip-out time measurement verifies the sensitivity of the RCD at different residual
currents.
Trip-out time measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select the RCD function using the function selector switch.
Set sub-function RCDt.
Set test parameters (if necessary).
Connect test cable to the instrument.
Connect test leads to the item to be tested (see figure 5.17).
Press the TEST key to perform the measurement.
Store the result by pressing the MEM key (optional)*.
38
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TESTBOY TV 450 Testing RCD
Figure 5.19: Example of trip-out time measurement results
Displayed results:
t ...........Trip-out time,
Uc........Contact voltage for rated IΔN.
5.4.3 Trip-out current (RCD I)
A continuously rising residual current is intended for testing the threshold sensitivity for
RCD trip-out. The instrument increases the test current in small steps through
appropriate range as follows:
RCD type
Start value End value
AC
A (IΔN ≥ 30 mA) 0.2×IΔN 1.5×IΔN
A (IΔN = 10 mA) 0.2×IΔN 2.2×IΔN
B
Maximum test current is IΔ (trip-out current) or end value in case the RCD didn’t trip-out.
Trip-out current measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select the RCD function using the function selector switch.
Set sub-function RCD I.
Set test parameters (if necessary).
Connect test cable to the instrument.
Connect test leads to the item to be tested (see figure 5.17).
Press the TEST key to perform the measurement.
Store the result by pressing the MEM key (optional)*.
Slope range Waveform
0.2×IΔN 1.1×IΔN
Pulsed
0.2×IΔN 2.2×IΔN
Sine
DC
Note
Both models
Model TESTBOY TV
450 (TYPE B) only
Trip-out
After the RCD is turned on again
Figure 5.20: Trip-out current measurement result example
39
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TESTBOY TV 450 Testing RCD
Displayed results:
I ...........Trip-out current,
Uci Contact voltage at trip-out current I or end value in case the RCD didn’t
trip,
t ...........Trip-out time.
5.4.4 RCD Autotest
RCD autotest function is intended to perform a complete RCD test (trip-out time at
different residual currents, trip-out current and contact voltage) in one set of automatic
tests, guided by the instrument.
Additional key:
HELP / DISPLAY
RCD autotest procedure
* model TESTBOY TV 450 (TYPE B)
RCD Autotest steps Notes
Select the RCD function using the function selector switch.
Set sub-function AUTO.
Set test parameters (if necessary).
Connect test cable to the instrument.
Connect test leads to the to the item to be tested (see
figure 5.17).
Press the TEST key to perform the test. Start of test
Test with I
Re-activate RCD.
Test with I
Re-activate RCD.
Test with 5×I
Re-activate RCD.
Test with 5×I
Re-activate RCD.
Test with ½×IΔN, 0° (step 5).
Test with ½×IΔN, 180° (step 6).
Trip-out current test, 0° (step 7).
Re-activate RCD.
Trip-out current test, 180° (step 8).
Re-activate RCD.
Store the result by pressing the MEM key (optional)*. End of test
, 0° (step 1).
ΔN
, 180° (step 2).
ΔN
ΔN
ΔN
Toggles between top and bottom part of results field.
, 0° (step 3).
, 180° (step 4).
RCD should trip-out
RCD should trip-out
RCD should trip-out
RCD should trip-out
RCD should not tripout
RCD should not tripout
RCD should trip-out
RCD should trip-out
40
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TESTBOY TV 450 Testing RCD
Result examples:
Step 1
Step 3
Step 5
Step 2
Step 4
Step 6
Step 7
Step 8
Figure 5.21: Individual steps in RCD autotest
Top
Bottom
Figure 5.22: Two parts of result field in RCD autotest
41
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TESTBOY TV 450 Testing RCD
Displayed results:
x1 ........Step 1 trip-out time (, IΔN, 0º),
x1 ........Step 2 trip-out time (, IΔN, 180º),
x5 ........Step 3 trip-out time (, 5×IΔN, 0º),
x5 ........Step 4 trip-out time (, 5×IΔN, 180º),
x½ .......Step 5 trip-out time (, ½×IΔN, 0º),
x½ .......Step 6 trip-out time (, ½×IΔN, 180º),
I .........Step 7 trip-out current (0º),
I .........Step 8 trip-out current (180º),
Uc........Contact voltage for rated IΔN.
Notes:
The autotest sequence is immediately stopped if any incorrect condition is
detected, e.g. excessive Uc or trip-out time out of bounds.
Auto test is finished without x5 tests in case of testing the RCD type A with rated
residual currents of I
Δn = 300 mA, 500 mA, and 1000 mA. In this case auto test
result passes if all other results pass, and indications for x5 are omitted.
Tests for sensitivity (I
, steps 7 and 8) are omitted for selective type RCD.
Δ
42
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TESTBOY TV 450 Fault loop impedance
5.5 Fault loop impedance and prospective fault current
Fault loop is a loop comprised by mains source, line wiring and PE return path to the
mains source. The instrument measures the impedance of the loop and calculates the
short circuit current. The measurement is covered by requirements of the EN 61557-3
standard.
See chapter 4.1 Function selection for
instructions on key functionality.
Figure 5.23: Fault loop impedance
Test parameters for fault loop impedance measurement
Test Selection of fault loop impedance sub-function [Zloop, Zs rcd]
Fuse type Selection of fuse type [---, NV, gG, B, C, K, D]
Fuse I Rated current of selected fuse
Fuse T Maximum breaking time of selected fuse
Lim Minimum short circuit current for selected fuse.
See Appendix A for reference fuse data.
Circuits for measurement of fault loop impedance
L1
L2
L3
N
PE
Ro
R
E
Figure 5.24: Connection of plug cable and 3-wire test lead
L
/
L
1
3
/
E
P
L
/
N
2
L
LPEN
43
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TESTBOY TV 450 Fault loop impedance
×
Fault loop impedance measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select the Zloop or Zs rcd subfunction using the function selector switch and
¿/À keys
Select test parameters (optional).
Connect test cable the TESTBOY TV 450.
Connect test leads to the the item to be tested (see figure 5.24 and 5.17).
Press the TEST key to perform the measurement.
Store the result by pressing the MEM key (optional)*.
Figure 5.25: Examples of loop impedance measurement result
Displayed results:
Z.............. Fault loop impedance,
ISC............Prospective fault current,
Lim ..........Low limit prospective short-circuit current value or high limit fault loop
impedance value for the UK version.
Prospective fault current ISC is calculated from measured impedance as follows:
kUn
=
I
SC
SC
Z
where:
Un ........Nominal U
voltage (see table below),
L-PE
ksc ....... Correction factor for Isc (see chapter 4.2.6).
Un Input voltage (L-PE)
115 V
230 V
(100 V
(160 V
≤ U
≤ U
< 160 V)
L-PE
≤ 264 V)
L-PE
Notes:
High fluctuations of mains voltage can influence the measurement results (the
noise sign is displayed in the message field). In this case it is recommended
to repeat few measurements to check if the readings are stable.
This measurement will trip-out the RCD in RCD-protected electrical installation if
test Zloop is selected.
Select Zs rcd to prevent trip-out of RCD in RCD protected installation.
44
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TESTBOY TV 450 Line impedance
5.6 Line impedance and prospective short-circuit current
Line impedance is measured in loop comprising of mains voltage source and line wiring.
It is covered by requirements of the EN 61557-3 standard.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.26: Line impedance
Test parameters for line impedance measurement
FUSE type Selection of fuse type [---, NV, gG, B, C, K, D]
FUSE I Rated current of selected fuse
FUSE T Maximum breaking time of selected fuse
Lim Minimum short circuit current for selected fuse.
See Appendix A for reference fuse data.
Connections for measurement of line impedance
PE
L1
L2
L3
N
N/L2
1
L
/
L
PE/L3
Ro
L
R
E
LPEN
L
/
L
1
/
3
L
E
P
/
N
2
Figure 5.27: Phase-neutral or phase-phase line impedance measurement – connection
of plug commander and 3-wire test lead
Line impedance measurement procedure
* model TESTBOY TV 450 (TYPE B)
Select the Z-LINE function using the function selector switch.
Select test parameters (optional).
Connect test cable to the instrument.
Connect test leads to the to the item to be tested (see figure 5.27).
Press the TEST key to perform the measurement.
Store the result by pressing the MEM key (optional)*.
45
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TESTBOY TV 450 Earth resistance
×
Line to neutral Line to line
Figure 5.28: Examples of line impedance measurement result
Displayed results:
Z.............. Line impedance,
I
SC............Prospective short-circuit current,
Lim ..........Low limit prospective short-circuit current value or high limit line
impedance value for the UK version.
Prospective short circuit current is calculated as follows:
kUn
=
I
SC
SC
Z
where:
Un ........Nominal L-N or L1-L2 voltage (see table below),
ksc ....... Correction factor for Isc (see chapter 4.2.6).
Un Input voltage range (L-N or L1-L2)
115 V
230 V
400 V
(100 V ≤ U
(160 V ≤ U
(264 V < U
< 160 V)
L-N
≤ 264 V)
L-N
≤ 440 V)
L-N
Note:
High fluctuations of mains voltage can influence the measurement results (the
noise sign
is displayed in the message field). In this case it is recommended
to repeat few measurements to check if the readings are stable.
46
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TESTBOY TV 450 Earth resistance
5.7 Earth resistance (model TESTBOY TV 450 (TYPE B))
Earth resistance is one of the most important parameters for protection against electric
shock. Main earthing arrangements, lightning systems, local earthings, etc can be
verified with the earthing resistance test. The measurement conforms to the EN 615575 standard.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.29: Earth resistance
Test parameters for earth resistance measurement
Limit
Connections for earth resistance measurement
Maximum resistance OFF, 1 Ω ÷ 5 kΩ
Figure 5.30: Resistance to earth, measurement of main installation earthing
47
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TESTBOY TV 450 Earth resistance
Figure 5.31: Resistance to earth, measurement of a lighting protection system
Earth resistance measurements, common measurement procedure
Select EARTH function using the function selector switch.
Enable and set limit value(optional).
Connect test leads to the instrument
Connect the item to be tested (see figures 5.30, 5.31).
Press the TEST key to perform the measurement..
Store the result by pressing the MEM key (optional).
Figure 5.32: Example of earth resistance measurement result
Displayed results for earth resistance measurement:
R..............Earth resistance,
Rp............Resistance of S (potential) probe,
Rc............Resistance of H (current) probe.
Notes:
High resistance of S and H probes could influence the measurement results. In
this case, “Rp” and “Rc” warnings are displayed. There is no pass / fail indication
in this case.
High noise currents and voltages in earth could influence the measurement
results. The tester displays the “noise” warning in this case.
Probes must be placed at sufficient distance from the measured object.
48
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TESTBOY TV 450 PE test terminal
5.8 PE test terminal
It can happen that a dangerous voltage is applied to the PE wire or other accessible
metal parts. This is a very dangerous situation since the PE wire and MPEs are
considered to be earthed. An often reason for this fault is incorrect wiring (see examples
below).
When touching the TEST key in all functions that require mains supply the user
automatically performs this test.
Examples for application of PE test terminal
L1
N
PE
Reversed phase and
protection conductors!
T M OST DANGEROUS
HE
SITUATION!
Figure 5.33: Reversed L and PE conductors (application of plug commander)
L1
N
PE
Reversed ph as e and
protection conductors!
L
/
/
E
P
L
3
/
N
L
2
L
1
MOST DANGEROUS
SITUATION!
LPEN
Figure 5.34: Reversed L and PE conductors (application of 3-wire test lead)
49
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TESTBOY TV 450 PE test terminal
PE terminal test procedure
Connect test cable to the instrument.
Connect test leads to the to the item to be tested (see figures 5.33 and 5.34).
Touch PE test probe (the TEST key) for at least one second.
If PE terminal is connected to phase voltage the warning message is displayed,
instrument buzzer is activated, and further measurements are disabled in ZLOOP and RCD functions.
Warning:
If dangerous voltage is detected on the tested PE terminal, immediately stop all
measurements, find and remove the fault!
Notes:
In the SETTINGS and VOLTAGE TRMS menus the PE terminal is not tested.
PE test terminal does not operate in case the operator’s body is completely
insulated from floor or walls!
50
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TESTBOY TV 450 Memory organization
6 Data handling (model TESTBOY TV 450 (TYPE
B))
6.1 Memory organization
Measurement results together with all relevant parameters can be stored in the
instrument’s memory. After the measurement is completed, results can be stored to the
flash memory of the instrument, together with the sub-results and function parameters.
6.2 Data structure
The instrument’s memory place is divided into 3 levels each containing 199 locations.
The number of measurements that can be stored into one location is not limited.
The data structure field describes the location of the measurement (which object,
block, fuse) and where can be accessed.
In the measurement field there is information about type and number of measurements
that belong to the selected structure element (object and block and fuse).
The main advantages of this system are:
Test results can be organized and grouped in a structured manner that reflects
the structure of typical electrical installations.
Customized names of data structure elements can be uploaded from TESTBOY
TV 450 PC SW.
Simple browsing through structure and results.
Test reports can be created with no or little modifications after downloading
results to a PC.
Figure 6.1: Data structure and measurement fields
51
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TESTBOY TV 450 Memory organization
Data structure field
Memory operation menu
Measurement field
Data structure field
st
1
level:
OBJECT: Default location name (object and its
successive number).
nd
2
level:
BLOCK: Default location name (block and its
successive number).
rd
3
level:
FUSE: Default location name (fuse and its successive
number).
001: No. of selected element.
No. of measurements in selected location
[No. of measurements in selected location and its
sublocations]
Type of stored measurement in the selected location.
No. of selected test result / No. of all stored test results in
selected location.
52
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TESTBOY TV 450 Storing test results
6.3 Storing test results
After the completion of a test the results and parameters are ready for storing (icon
is displayed in the information field). By pressing the MEM key, the user can store the
results.
Figure 6.2: Save test menu
Memory available for storing results.
Keys in save test menu - data structure field:
TAB
UP / DOWN
MEM
Function selectors
/
TEST
Notes:
The instrument offers to store the result to the last selected location by default.
If the measurement is to be stored to the same location as the previous one just
press the MEM key twice
Selects the location element (Object / Block / Fuse)
Selects number of selected location element (1 to 199)
Saves test results to the selected location and returns to the
measuring menu.
Exits back to main function menu.
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TESTBOY TV 450 Recalling test results
6.4 Recalling test results
Press the MEM key in a main function menu when there is no result available for storing
or select MEMORY in the SETTINGS menu.
Figure 6.3: Recall menu - installation
structure field selected
Figure 6.4: Recall menu - measurements
field selected
Keys in recall memory menu (installation structure field selected):
TAB
UP / DOWN
Function selectors /
TEST
MEM
Selects the location element (Object / Block / Fuse).
Enters measurements field.
Selects the location element in selected level.
Exits back to main function menu.
Enters measurements field.
Keys in recall memory menu (measurements field):
UP / DOWN
TAB
Function selector /
TEST
MEM
Selects the stored measurement.
Returns to installation structure field.
Exits back to main function menu.
View selected measurement results.
Figure 6.5: Example of recalled measurement result
Keys in recall memory menu (measurement results are displayed)
UP / DOWN
MEM
Function selector /
TEST
Displays measurement results stored in selected location
Returns to measurements field.
Exits back to main function menu.
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TESTBOY TV 450 Clearing stored data
6.5 Clearing stored data
6.5.1 Clearing complete memory content
Select CLEAR ALL MEMORY in MEMORY menu. A warning will be displayed.
Figure 6.6: Clear all memory
Keys in clear all memory menu
TEST
Function
selectors
Confirms clearing of complete memory content.
Exits back to main function menu without changes.
Figure 6.7: Clearing memory in progress
6.5.2 Clearing measurement(s) in selected location
Select DELETE RESULTS in MEMORY menu.
Figure 6.8: Clear measurements menu (data structure field selected)
Keys in delete results menu (installation structure field selected):
TAB
UP / DOWN
Function selector /
TEST
HELP
Selects the location element (Object / D. Board / Circuit or
Bonding or Electrode).
Selects the location element in selected level.
Exits back to main function menu.
Enters dialog box for deleting all measurements in selected
location and its sublocations.
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TESTBOY TV 450 Clearing stored data
MEM
Enters measurements field for deleting individual
measurements.
Keys in dialog for confirmation to clear results in selected location:
TEST
MEM
Function selectors
Deletes all results in selected location.
Exits back to delete results menu without changes.
Exits back to main function menu without changes.
6.5.3 Clearing individual measurements
Select DELETE RESULTS in MEMORY menu.
Figure 6.9: Menu for clearing individual measurement (installation structure field
selected)
Keys in delete results menu (installation structure field selected):
TAB
UP / DOWN
Function selector /
TEST
MEM
Keys in delete results menu (measurements field selected):
TAB
UP / DOWN
TEST
HELP
Function selector
Keys in dialog for confirmation to clear selected result(s):
TEST
MEM
Function selector
Selects the location element (Object / D. Board / Circuit or
Bonding or Electrode).
Selects the location element in selected level.
Exits back to main function menu.
Enters measurements field.
Returns to installation structure field.
Selects measurement.
Opens dialog box for confirmation to clear selected
measurement.
Enters dialog box for deleting selected measurement.
Exits back to main function menu without changes.
Deletes selected measurement result.
Exits back to measurements field without changes.
Exits back to main function menu without changes.
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TESTBOY TV 450 Clearing stored data
Figure 6.10: Dialog for confirmation
Figure 6.11: Display after measurement
was cleared
6.5.4 Renaming installation structure elements
Default installation structure elements are ‘Object’, ‘D.Board’, ‘Circuit’, ‘Electrode’ and
‘Circuit’. In the PC SW package TESTBOY TV 450 default names can be changed with
customized names that corresponds the installation under test. Refer to PC SW
TESTBOY TV 450 HELP menu for information how to upload customized installation
names to the instrument.
Figure 6.12: Example of menu with customized installation structure names
57
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TESTBOY TV 450 Communication
6.6 Communication
Stored results can be transferred to a PC. A special communication program on the PC
automatically identifies the instrument and enables data transfer between the instrument
and the PC.
There are two communication interfaces available on the instrument: USB or RS 232.
The instrument automatically selects the communication mode according to detected
interface. USB interface has priority.
Figure 6.13: Interface connection for data transfer over PC COM port
How to transfer stored data:
RS 232 communication: connect a PC COM port to the instrument PS/2
connector using the PS/2 - RS232 serial communication cable;
USB communication selected: connect a PC USB port to the instrument USB
connector using the USB interface cable.
Switch on the PC and the instrument.
Run the TESTBOY TV 450 program.
The PC and the instrument will automatically recognize each other.
The instrument is prepared to download data to the PC.
The program
TESTBOY TV 450 is a PC software running on Windows 95/98, Windows
NT, Windows 2000, Windows XP, Windows Vista. Read the file README_TESTBOY
TV 450.txt on CD for instructions about installing and running the program.
Note:
USB drivers should be installed on PC before using the USB interface. Refer to
USB installation instructions available on installation CD.
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TESTBOY TV 450 Upgrading the instrument
7 Upgrading the instrument
The instrument can be upgraded from a PC via the RS232 communication port. This
enables to keep the instrument up to date even if the standards or regulations change.
The upgrade can be carried with help of a special upgrading software and the
communication cable as shown on Figure 6.13. Please contact your dealer for more
information.
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TESTBOY TV 450Maintenance
8 Maintenance
Unauthorized persons are not allowed to open the TESTBOY TV 450 instrument. There
are no user replaceable components inside the instrument, except the battery and fuse
under rear cover.
8.1 Fuse replacement
There is a fuse under back cover of the TESTBOY TV 450 instrument.
F1
M 0.315 A / 250 V, 20×5 mm
This fuse protects internal circuitry for continuity functions if test probes are
connected to the mains supply voltage by mistake during measurement.
Warnings:
Disconnect all measuring accessory and switch off the instrument
before opening battery / fuse compartment cover, hazardous voltage
inside!
Replace blown fuse with original type only, otherwise the instrument may be
damaged and/or operator’s safety impaired!
Position of fuse can be seen in Figure 3.4 in chapter 3.3 Back panel.
8.2 Cleaning
No special maintenance is required for the housing. To clean the surface of the
instrument use a soft cloth slightly moistened with soapy water or alcohol. Then leave
the instrument to dry totally before use.
Warnings:
Do not use liquids based on petrol or hydrocarbons!
Do not spill cleaning liquid over the instrument!
8.3 Periodic calibration
It is essential that the test instrument is regularly calibrated in order that the technical
specification listed in this manual is guaranteed. We recommend an annual calibration.
Only an authorized technical person can do the calibration. Please contact your dealer
for further information.
8.4 Service
For repairs under warranty, or at any other time, please contact your distributor.
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TESTBOY TV 450 Technical specification
9 Technical specifications
9.1 Insulation resistance
Insulation resistance (nominal voltages 50 VDC, 100 V
Measuring range according to EN61557 is 0.15 MΩ ÷ 199.9 MΩ.
Measuring range (MΩ) Resolution (MΩ)
0.00 ÷ 19.99
20.0 ÷ 99.9 ±(10 % of reading)
100.0 ÷ 199.9
Insulation resistance (nominal voltages 500 VDC and 1000 VDC)
Measuring range according to EN61557 is 0.15 MΩ ÷ 1 GΩ.
Open circuit voltage ...........................-0 % / +20 % of nominal voltage
Measuring current..............................min. 1 mA at RN=U
Short circuit current........................... max. 3 mA
The number of possible tests............ > 1200, with a fully charged battery
Auto discharge after test.
Specified accuracy is valid if 3-wire test lead is used while it is valid up to 100 M
commander is used.
Specified accuracy is valid up to 100 MΩ if relative humidity > 85 %.
In case the instrument gets moistened, the results could be impaired. In such case, it is
recommended to dry the instrument and accessories for at least 24 hours.
The error in operating conditions could be at most the error for reference conditions
(specified in the manual for each function)
0.01
0.1
0.01
0.1
1
1
±5 % of measured value.
and 250 VDC)
DC
Accuracy
±(5 % of reading + 3 digits)
±(20 % of reading)
Accuracy
±(5 % of reading + 3 digits)
±(5 % of reading)
±(10 % of reading)
±(3 % of reading + 3 digits)
×1 kΩ/V
N
Ω if tip
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TESTBOY TV 450 Technical specification
9.2 Continuity
9.2.1 Resistance R LOWΩ
Measuring range according to EN61557 is 0.16 Ω ÷ 1999 Ω.
AC type..............................................sine wave test current
A type…… .........................................pulsed current
B type ................................................smooth DC current
9.3.2 Contact voltage RCD-Uc
Measuring range according to EN61557 is 20.0 V ÷ 31.0V for limit contact voltage 25V
Measuring range according to EN61557 is 20.0 V
÷ 62.0V for limit contact voltage 50V
Measuring range (V) Resolution (V) Accuracy
0.0 ÷ 19.9
20.0 ÷ 99.9
0.1
(-0 % / +15 %) of reading
(-0 % / +15 %) of reading ± 10 digits
The accuracy is valid if mains voltage is stabile during the measurement and PE
terminal is free of interfering voltages.
Test current ...................................... max. 0.5×IΔN
Limit contact voltage ......................... 25 V, 50 V
Specified accuracy is valid for complete operating range.
9.3.3 Trip-out time
Complete measurement range corresponds to EN 61557 requirements.
Maximum measuring times set according to selected reference for RCD testing.
Measuring range (ms) Resolution (ms) Accuracy
0.0 ÷ 40.0
0.0 ÷ max. time *
0.1
0.1
±1 ms
±3 ms
* For max. time see normative references in 4.2.5 – this specification applies to max.
time >40 ms.
Test current ...................................... ½×IΔN, IΔN, 2×IΔN, 5×I
5×IΔN is not available for IΔN=1000 mA (RCD type AC) or I
ΔN
≥ 300 mA (RCD types A,
ΔN
B*).
2×IΔN is not available for IΔN=1000 mA (RCD type A) or I
≥ 300 mA (RCD type B*).
ΔN
1×IΔN is not available for IΔN=1000 mA (RCD type B)*.
Specified accuracy is valid for complete operating range.
9.3.4 Trip-out current
Trip-out current
Complete measurement range corresponds to EN 61557 requirements.
Measuring range I
Resolution IΔ
Δ
Accuracy
0.2×IΔN ÷ 1.1×IΔN (AC type) 0.05×IΔN ±0.1×IΔN
0.2×IΔN ÷ 1.5×IΔN (A type, IΔN ≥30 mA) 0.05×IΔN ±0.1×IΔN
63
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TESTBOY TV 450 Technical specification
0.2×IΔN ÷ 2.2×IΔN (A type, IΔN <30 mA) 0.05×IΔN ±0.1×IΔN
0.2×IΔN ÷ 2.2×IΔN (B type)* 0.05×IΔN ±0.1×IΔN
Trip-out time
Measuring range (ms) Resolution (ms) Accuracy
0 ÷ 300
Contact voltage
Measuring range (V) Resolution (V) Accuracy
0.0 ÷ 19.9
20.0 ÷ 99.9
The accuracy is valid if mains voltage is stabile during the measurement and PE
terminal is free of interfering voltages.
Trip-out measurement is not available for IΔN=1000 mA (RCD type B)*.
Specified accuracy is valid for complete operating range.
0.1
0.1 (-0 % / +15 %) of reading
1
±3 ms
(-0 % / +15 %) of reading ± 10 digits
9.4 Fault loop impedance and prospective fault current
9.4.1 No disconnecting device or FUSE selected
Fault loop impedance
Measuring range according to EN61557 is 0.25 Ω ÷ 9.99kΩ.
Measuring range (Ω) Resolution (Ω)
0.00 ÷ 9.99
10.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 9.99k
Prospective fault current (calculated value)
Measuring range (A) Resolution (A) Accuracy
0.00 ÷ 9.99
10.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 9.99k
10.0k ÷ 23.0k
The accuracy is valid if mains voltage is stabile during the measurement.
Test current (at 230 V)...................... 6.5 A (10 ms)
Nominal voltage range...................... 30 V
0.01
0.1
1
10
0.01
0.1
1
10
100
÷ 500 V (45 Hz ÷ 65 Hz)
±(5 % of reading + 5 digits)
± 10 % of reading
Consider accuracy of fault
Accuracy
loop resistance
measurement
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TESTBOY TV 450 Technical specification
9.4.2 RCD selected
Fault loop impedance
Measuring range according to EN61557 is 0.46 Ω ÷ 9.99 kΩ.
Measuring range (Ω) Resolution (Ω)
0.00 ÷ 9.99
10.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 9.99k
Acccuracy may be impaired in case of heavy noise on mains voltage
Prospective fault current (calculated value)
Measuring range (A) Resolution (A) Accuracy
0.00 ÷ 9.99
10.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 9.99k
10.0k ÷ 23.0k
Nominal voltage range...................... 30 V ÷ 500 V (45 Hz ÷ 65 Hz)
No trip out of RCD.
R, XL values are indicative.
0.01
0.1
1
10
0.01
0.1
10
100
±(5 % of reading + 10 digits)
± 10 % of reading
Consider accuracy of fault
1
Accuracy
loop resistance
measurement
9.5 Line impedance and prospective short-circuit current
Line impedance
Measuring range according to EN61557 is 0.25 Ω ÷ 9.99kΩ.
Measuring range (Ω) Resolution (Ω)
0.00 ÷ 9.99
10.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 9.99k
Prospective short-circuit current (calculated value)
Measuring range (A) Resolution (A) Accuracy
0.00 ÷ 0.99
1.0 ÷ 99.9
100 ÷ 999
1.00k ÷ 99.99k
100k ÷ 199k
Test current (at 230 V)...................... 6.5 A (10 ms)
Nominal voltage range...................... 30 V ÷ 500 V (45 Hz ÷ 65 Hz)
R, XL values are indicative.
0.01
0.1
1
10
0.01
0.1
1
10
1000
±(5 % of reading + 5 digits)
± 10 % of reading
Consider accuracy of line
resistance measurement
Accuracy
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TESTBOY TV 450 Technical specification
9.6 Resistance to earth (model TESTBOY TV 450 (TYPE B))
Measuring range according to EN61557-5 is 2.00 Ω ÷ 1999 Ω.
Measuring range (Ω) Resolution (Ω)
0.00 ÷ 19.99
20.0 ÷ 199.9
200 ÷ 9999
0.01
0.1
1
±(5% of reading + 5 digits)
Accuracy
Max. auxiliary earth electrode resistance R
Max. probe resistance R
................................ 100×RE or 50 kΩ (whichever is lower)
P
... 100×RE or 50 kΩ (whichever is lower)
C
Additional probe resistance error at R
Cmax
or R
±(10 % of reading + 10 digits)
Pmax.
Additional error
at 3 V voltage noise (50 Hz) ............................
±(5 % of reading + 10 digits)
Open circuit voltage ......................................... < 15 VAC
Short circuit voltage ......................................... < 30 mA
Test voltage frequency .................................... 125 Hz
Test voltage shape .......................................... rectangular
Noise voltage indication threshold ................... 1 V (< 50
Ω, worst case)
Automatic measurement of auxiliary electrode resistance and probe resistance.
Automatic measurement of voltage noise.
9.7 Voltage, frequency, and phase rotation
9.7.1 Phase rotation
Nominal system voltage range ......... 100 VAC ÷ 550 VAC
1
÷ 500 Hz
±(2 % of reading + 2 digits)
÷ 500 Hz
±(0.2 % of reading + 1 digit)
Nominal frequency range.................. 14 Hz
Result displayed ............................... 1.2.3 or 3.2.1
9.7.2 Voltage
Measuring range (V) Resolution (V) Accuracy
0 ÷ 550
Result type........................................ True r.m.s. (trms)
Nominal frequency range.................. 0 Hz, 14 Hz
9.7.3 Frequency
Measuring range (Hz) Resolution (Hz) Accuracy
0.00 ÷ 9.99
10.0 ÷ 499.9
0.01
0.1
Nominal voltage range...................... 10 V ÷ 550 V
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TESTBOY TV 450 Technical specification
9.7.4 Online terminal voltage monitor
Measuring range (V) Resolution (V) Accuracy
10 ÷ 550
1
±(2 % of reading + 2 digits)
9.8 General data
Models TESTBOY TV 450 and TESTBOY TV 450 (TYPE B):
Power supply voltage........................ 9 VDC (6×1.5 V battery or accu, size AA)
Operation.......................................... typical 20 h
Charger socket input voltage ............ 12 V ± 10 %
Charger socket input current ............ 400 mA max.
Battery charging current ................... 250 mA (internally regulated)
Overvoltage category........................ 600 V CAT III / 300 V CAT IV
Plug commander
overvoltage category ................ 300 V CAT III
The error in operating conditions could be at most the error for reference conditions
(specified in the manual for each function) +1 % of measured value + 1 digit, unless
otherwise specified in the manual for particular function.
The table below presents standard and optional accessories required for specific
measurement. The accessories marked as optional may also be standard ones in some
sets. Please see attached list of standard accessories for your set or contact your
distributor for further information.
Function Suitable accessories (Optional with ordering code A….)
Insulation resistance Test lead, 3 x 1.5 m
Tip commander (A 1270)
R LOWΩ resistance Test lead, 3 x 1.5 m
Tip commander (A 1270)
Test lead, 4 m (A 1012)
Continuous resistance
measurement (model
TESTBOY TV 450 (TYPE
B))
Line impedance Test lead, 3 x 1.5 m
Fault loop impedance Test lead, 3 x 1.5 m
RCD testing Test lead, 3 x 1.5 m
Earth resistance, RE
(model TESTBOY TV 450
(TYPE B))
Phase sequence Test lead, 3 x 1.5 m
Voltage, frequency Test lead, 3 x 1.5 m
Test lead, 3 x 1.5 m
Tip commander (A 1270)
Test lead, 4 m (A 1012)
Plug commander (A 1272)
Mains measuring cable
Tip commander (A 1270)
Three-phase adapter with switch (A 1111)
Plug commander (A 1272)
Mains measuring cable
Tip commander (A 1270)
Three-phase adapter with switch (A 1111)
Plug commander (A 1272)
Mains measuring cable
Three-phase adapter with switch (A 1111)
Earth test set, 3-wire, 20 m (S 2026)
Earth test set, 3-wire, 50 m (S 2027)
Three-phase adapter (A 1110)
Three-phase adapter with switch (A 1111)
Plug commander (A 1272)
Mains measuring cable
Tip commander (A 1270)
72
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TESTBOY TV 450 Appendix C
C Appendix F – Country notes
This appendix F contains collection of minor modifications related to particular country
requirements. Some of the modifications mean modified listed function characteristics
related to main chapters and others are additional functions. Some minor modifications
are related also to different requirements of the same market that are covered by
various suppliers.
C.1 List of country modifications
The following table contains current list of applied modifications.
Country Related chapters Modification type Note
AT 5.4, 9.3, C.2.1 Appended Special G type RCD
C.2 Modification issues
C.2.1 AT modification - G type RCD
Modified is the following related to the mentioned in the chapter 5.4:
- G type mentioned in the chapter is converted to unmarked type ,
- Added G type RCD,
- Time limits are the same as for general type RCD,
- Contact voltage is calculated the same as for general type RCD.
Modifications of the chapter 5.4
Test parameters for RCD test and measurement
TEST RCD sub-function test [RCDt, RCD I, AUTO, Uc].
Iδn Rated RCD residual current sensitivity IΔN[10 mA, 30 mA, 100 mA, 300
mA, 500 mA, 1000 mA].
type
MUL
Ulim Conventional touch voltage limit [25 V, 50 V].
* Model TESTBOY TV 450 (TYPE B)
Note:
Ulim can be selected in the Uc sub-function only.
The instrument is intended for testing of general , G (non-delayed) and selective S
(time-delayed) RCDs, which are suited for:
Alternating residual current (AC type, marked with symbol),
Pulsating residual current (A type, marked with symbol).
Model TESTBOY TV 450 (TYPE B): DC residual current (B type, marked with
symbol).
RCD type [, , ], test current waveform plus starting polarity [, ,
,
, *, *
].
Multiplication factor for test current [½, 1, 2, 5 Iδn].
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TESTBOY TV 450 Appendix C
Time delayed RCDs demonstrate delayed response characteristics. They contain
residual current integrating mechanism for generation of delayed trip out. However,
contact voltage pre-test in the measuring procedure also influences the RCD and it
takes a period to recover into idle state. Time delay of 30 s is inserted before performing
trip-out test to recover
S
type RCD after pretests and time delay of 5 s is inserted for
the same purpose for G type RCD.
Modification of the chapter 5.4.1
RCD type
AC
AC
A
A
A
A
G
S
G
S
G
S
B
B
S
Contact voltage Uc
proportional to
,
1.05×IΔN
2
,
×1.05×I
1.4×1.05×IΔN
2×1.4×1.05×IΔN
,
2×1.05×IΔN
2×2×1.05×IΔN
2×1.05×IΔN
2×2×1.05×IΔN
ΔN
Rated
IΔN
any
≥ 30 mA
< 30 mA
any
Both models
Model TESTBOY TV 450 (Type B)
only
Table C.1: Relationship between Uc and I
Technical specifications remain the same.
Δ
N
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TESTBOY TV 450 Appendix C
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TESTBOY TV 450 Appendix C
76
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