multicomp pro MP760855 User manual

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Voltage Tester Operating Instruction
User Manual
Part Number: MP760855

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1. Safety
1.1 International Safety Symbols
Warning of a potential danger, comply with instruction manual.
Caution! Dangerous voltage. Danger of electrical shock.
Double insulation.
Important information. Consult the instruction sheet.
Hazardous Voltage.
Suitable for live working.
This product complies with the WEEE Directive (2012/19/EU)
Conforms to European Union Directives.
TÜV Association for Electrical, Electronic & Information Technologies;
following rules of “Geprüfte Sicherheit.”
CAT III
Measurement Category III is applicable to test and measuring circuits connected to the distribution part of the building’s
low- voltage MAINS installation.
CAT IV
Measurement Category IV is applicable to test and measuring circuits connected at the source of the building’s low-voltage
MAINS installation.
1.2 Safety Notes
• Reference. Please use utmost attention.
• Do not exceed the maximum allowable input range of any function
• Insulated personnel body protective equipment up to 1000V.
• The unauthorized persons are not to be allowed to disassemble the voltage detector.
• The voltages marked on the voltage detector are nominal voltages or nominal voltage ranges, and that the voltage
detector is only to be used on installations with the specied nominal voltages or nominal voltage ranges.
1.3 Warnings
In order to avoid electrical shock, the valid safety and VDE regulations regarding excessive contact voltages must
receive utmost attention, when working with voltages exceeding 120V (60V) DC or 50V (25V) rms AC.
The values in brackets are valid forlimited ranges (as for example medicine and agriculture).
Prior to measurement ensure that the test leads and the test instrument are in perfect condition.
When using this instrument only the handles of the probes may be touched - do not touch the probe tips.
This instrument may only be used within the ranges specied and within low voltage systems up to 1000V.
Prior to usage ensure perfect instrument function (e.g. on known voltage source).
The voltage detector is not to be used, if the battery box is open.
The voltage detectors have to be kept dry and clean.
The voltage testers may no longer be used if one or several functions fail or if no functionality is indicated.
Do not use this instrument under damp conditions.
Perfect display I sonly guaranteed within a temperature range of -10 up to +55 , at relative humidity question <85%.
If the operator’s safety cannot be guaranteed, the instrument must be removed from service and protected against

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use.
1.4 The safety can no longer be insured if the instrument:
• Shows obvious damage
• does not carry out the desired measurements
• has been stored for too long under unfavorable conditions
• has been subjected to mechanical stress during transport.
All relevant statutory regulations must be adhered to when using this instrument
1.5 Safety Advices
• Depending on the internal impedance of the voltage detector there will be a di󰀨erent capability of indicating the presence
or absence of operating voltage in case of the presence of interference voltage.
• A voltage detector of relatively low internal impedance, compared to the reference value of 100 kΩ, will not indicate all
interference voltages having an original voltage value above the ELV level. When in contact with the parts to be tested,
the voltage detector may discharge temporarily the interference voltage to a level below the ELV, but it will be back to the
original value when the voltage detector is removed.
• When the indication “voltage present” does not appear, it is highly recommended installing earthing equipment before
work.
• A voltage detector of relatively high internal impedance, compared to the reference value of 100 kΩ, may not permit to
clearly indicate the absence of operating voltage in case of presence of interference voltage.
• When the indication “voltage present” appears on a part that is expected to be disconnected of the installation, it is highly
recommended conrming • by another means (e.g. use of an adequate voltage detector, visual check of the disconnecting
point of the electric circuit, etc.) that there is no operating voltage on the part to be tested and to conclude that the voltage
indicated by the voltage detector is an interference voltage.
• A voltage detector declaring two values of internal impedance has passed a performance test of managing interference
voltages and is (within technical limits) able to distinguish operating voltage from interference voltage and has a means to
directly or indirectly indicate which type of voltage is present.
2. Appropriate Usage
The instrument may only be used under those conditions and for those purposes for which it was conceived. For this reason,
in particular the safety references, the technical data including environmental conditions and the usage in dry environments
must be followed.
When modifying or changing the instrument, the operational safety is no longer ensured.
The instrument may only be opened by an authorized service technician.
The voltage detectors are designed to be used by skilled persons and in accordance with safe methods of work.
Before using a voltage detector with audible indicator at locations with a high back ground noise level, it has to be determined
whether the audible signal is perceptible.
3. Specications
LEDS
LED voltage range 12V to 1000V AC/DC
LED resolution ±12,24,50,120,230, 400, 690,1000V AC/DC
Tolerances Complies with EN 61243-3:2014

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Frequency range 0/40Hz to 400Hz
Response time ≤1 second
Auto power on Auto power on ≥12V AC/DC
LCD
LCD display 1999 counts (3 1/2 digit ) LCD display with bargraph & backlight
Voltage range 6 V to 1000 V AC/DC
Resolution 1V AC/DC
Tolerances ±3.0% of reading ±5 digit
Frequency range 0/40Hz to 400Hz
Response time ≤1second
Auto power on Auto power on ≥ 6V AC/DC
Voltage detection automatic
Polarity detection Full range
Range detection Automatic
Internal basic load impedance Peak
current
Maximum 3.5 mA at 1000 V
350 kΩ / Is<3.5 mA (no RCD tripping)
Operation time Duration Time = 30 seconds
Recovery time Recovery Time = 240 seconds
Switchable Load ~7KΩ
Peak current Is (load)=150mA
RCD trippingI ~30mA@230V
Continuity Test 0 to 400 kΩ
Accuracy nominal resistance ±50%
Test current ≤5 µA
Resistance measurement 0Ω to1999Ω
Resolution 1 Ω
Tolerance ±(5% rdg +10 digits) @ 20°C
Temperature coe󰀩cient ±5 digits / 10 K
Test current ≤30 μA
Single-pole Phase Test 100V to 1000V AC
Frequency range 50 Hz to 400 Hz
Rotary Field Indication
Voltage range (LEDs) 100…1000V
Frequency range 50/60Hz
Measurement principle Double-pole and contact electrode
Safety standards EN61243-3:2014
Agency approvals TÜV Rheinland -GS
Overvoltage protection 1000V AC/DC
Measurement category CATIII 1000V/CATIV 600V

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Protection degree IP64
Power supply 2x1.5V “AAA” Batteries
Power consumption max.30mA / approx. 250mW
Temperature range -10°C up to 55°C
Humidity max.85% relative humidity
4. Voltage Tester Description:
1. Handle test probe – (L1)
2. Instrument test probe + (L2)
3. LEDs for voltage display
4. Measurement point illumination
5. LED for low impedance test
6. LED for continuity
7. LED for left rotary eld
8. LED for right rotary eld
9. LED for AC voltage
10. LED for positive voltage
11. LED for negative voltage
12. LED for warning voltage
13. 1999 Counts LCD display
14. Low impedance switches
15. Button for measurement point
lighting ,and test resistance
16. Button for hold and switch LCD
Display background
17. Battery case
18. Probe tip Protective cap(with storage
compar tments for probe tip cover and
probe tip extension)
19. Probe tip cover
20. Probe tip extension
(diameter4 mm, screw-on)

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5. Operation:
5.1 Preparing the test
Prior to every test, please ensure that the instrument is in perfect condition:
• For example, keep an eye out for a broken housing or leaking batteries.
• Always carry out a function test before using the voltage tester, see below.
• Check that the instrument is functioning properly(for example at a known voltage source)before and after every test.
• If the safety of the user can not be guaranteed, switch o󰀨 the instrument and secure it to prevent unintentional usage.
Carrying out a function test
Connect the voltage tester probe tips for 4 to10 seconds and then disconnect. With the exception of the LED for low imped-
ance test, all LEDs should light up. All segments are illuminated on the LCD display.
The functioning of the voltage detector is to be checked shor tly before andafter use by using the testing element. If the indi-
cation “not ready”appears or if theindication of one or more steps fails, or if no functioning is indicated, the voltage detectoris
no longer to be used.
5.2 Voltage Test
• Connect both test probes with power source.
• As from a voltage of >6V the voltage tester switches on automatically.
• The voltage is displayed via LEDs. The di󰀨erent indicating signals of the voltage detector (including the ELV limit
indication)are not to be used for measuring purposes.
• The voltage is also shown on the LCD display.
• For AC voltage, the “AC” is illuminated;
For positive voltage, the “+” is illuminated;
For negative voltage, the “-” is illuminated.
• In the case of DC voltage,the polarity of the indicated voltage relates to the
voltage tester probe tip
• Once the safety extra-low voltage (50V AC /120V DC)is reached or
exceeded, the “ ” is illuminated, in the event of no battery power or main circuit failure,
• and an acoustic signal is emitted.
• Once voltage is applied to the measuring instrument,press the HOLD buttom, the LCD and
LEDs display shows the
recoarded reading.
• To delete the recorded value,press the HOLD button once again.the LCD and LEDs display once again indicates the
voltage currently being applied to the probe tips.
5.3 Single-pole phase Test
• The single-pole phase test is only possible when batteries are installed and in good condition.
• The single-pole phase test starts at an AC voltage of approx.100V (pole>100V AC).
• When using single-pole phase tests to determine external conductors the display function may be impaired under cer tain
conditions (e.g. for insulating body protective equipment on insulation locations).
• The single-pole phase testing is not appropriate to determine whether a line is live or not. For this purpose, the
double-pole voltage test is always required.
• Connect both test probes with power source.
• A signal sound indicates the phase.
• The “ ” LED is illuminated in the display.

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5.4 Continuity Test
The continuity test test is only possible when batteries are installed and in good condition. A signal sound is audible for
continuity and the LED for continuity LED
(6) is illuminated.
5.5 Voltage Test with Switched Load, RCD Trip Test
• During voltage tests, you can decrease the interference voltages from inductive or capacitive coupling by loading the UUT
with a lower impedance than the Tester has in normal mode. In systems with RCD circuit breakers, you can trip an RCD
switch with the same low impedance as when you measure voltage between L and PE.
• To do an RCD trip test during voltage measurement, push the two low imdedance buttons (14)at the same time. If you
have 10 mA or 30 mA RCDs between L and PE in a 230 V system, it will trip.
• During load current,the low imdedance LED is the indication for the owing load current. This indication is not to be used
for voltage test or measurement.
• If the two pushbuttons are not used, the RCDs will not trip, even in measurements between L and PE.
5.6 Resistance Test
The Tester measures low ohm resistances between 1Ω and 1999Ω at a resolution of 1Ω.
To do a resistance test:
• Do a Voltage test to make sure the UUT (unit under test) is not live.
• Push and hold the measurement point illumination button (15) for 2 seconds .
• Connect the two test probes with the UUT and read value on the display.
• Push and hold the measurement point illumination button (15) for 2 seconds to turn the function o󰀨.
• To save battery power the function automatically.
5.7 Rotary Field Indication
The voltage testers are equipped with a double-pole rotary eld indicator.
The rotary phase indication is always active. The symbols “R”or “L” are always displayed. However, the rotary direction can
only be determined within a three-phase system. Here, the instrument indicates the voltage between two external conductors.
• Connect the instrument test probe with the supposed phase L2 and the handle test probe with the supposed phase L1.
The voltage and the rotary eld direction are displayed.
“R” signies that the supposed
phase L1 is the actual phase L1
and the supposed phase L2
is the actual phase L2.
“L” signies that the supposed phase L1 is the
actual phase L2 and the supposed phase L2 is the actual phase L1.
When re-testing with exchanged test probes theopposite symbol has to be illuminated.

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Important Notice : This data sheet and its contents (the “Information”) belong to the members of the AVNET group of companies (the “Group”) or are licensed to it. No licence is granted for
the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change
without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness,
any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make
any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or
where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group’s liability for death or personal injury resulting from its
negligence. Multicomp Pro is the registered trademark of Premier Farnell Limited 2019.
5.8 Measurement Point illumination
Voltage testers are equipped with a measurement point illumination feature. Thus,working under bad lighting conditions
(e.g. division switch cabinets) is made easier.
Press button for measurement point illumination (15) on instrument rear.
5.9 Maintenance
When using voltage testers in compliance with the instruction manual, no particular maintenance is required. If functional
errors occur during normal operating, our service depar tment will check your instrument without delay.
5.10 Cleaning
Prior to cleaning, remove voltage test from all measurement circuits. If the instruments are dirty after daily usage, it is
advisable to clean them by using a damp cloth and a mild household detergent. Never use acid detergents or dissolvents for
cleaning.
After cleaning, do not use the voltage tester for a period of approx. 5 hours.
5.11 Battery Replacement
If no signal sound is audible when shor t-circuiting the test probes or display battery symbols on the screen, proceed with the
battery replacement.
• Completely disconnect voltage tester from the measurement circuit.
• Remove discharged screw , battery cover and batteries.
• Replace by new batteries, two type “AAA” by respecting correct polarity.
• Close the battery cover and re-screw the screw.