Major tech MT700 User manual

INSTRUCTION MANUAL
VOLTAGE & CURRENT TESTER
MT700

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Contents Page no
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1. Safety....................................................................................... 4
1.1. lnternational Safety Symbols............................................ 4
1.2. Safety Notes..................................................................... 4
1.3. WARNINGS..................................................................... 4
1.4. Safety Precautions before use.......................................... 5
1.5. Safety Advices.................................................................. 5
2. Appropriate Usage.................................................................. 6
3. Meter Description.................................................................... 7
3.1. Meter Description............................................................. 7
3.2. Symbols Used on LCD Display.......................................... 8
4. Operation................................................................................. 9
4.1. Preparing the Test............................................................. 9
4.2. Switching On and Off........................................................ 9
4.3. Current Test...................................................................... 9
4.4. Voltage Test....................................................................10
4.5. Voltage and Current Measured Simultaneously............... 11
4.6. Rotary Field lndication.................................................... 12
4.7. Resistance Test.............................................................. 12
4.8. Continuity Test................................................................ 12
4.9. NCV Test........................................................................ 13
5. Cleaning................................................................................. 13
6. Battery Replacement............................................................ 13
7. Specifications....................................................................... 14
7.1. General Specifications................................................... 14
7.2. Specifications................................................................. 14

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1. Safety
1.1. lnternational 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.
Measurement Category III is applicable to test and measuring
circuits connected to the distribution part of the building's low-
voltage mains installation.
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 specified nominal voltages or nominal
voltage ranges.
1.3. WARNINGS
In order to avoid electrical shock, the valid safety and VOE
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 for
limited 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.

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This instrument may only be used within the ranges specified 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 cover 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.
Accurate measurements within a temperature range of -10°C up to
55°C, at relative humidity question <85%.
If the operator's safety cannot be guaranteed, the instrument must be
removed from service and sent in for repair.
1.4. Safety Precautions before use
• Meter shows obvious damage.
• Test Leads are damaged or insulation is open.
• Measurements are not correct.
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 and
presence of interference voltage there could be a different capability
of indicating the presence or absence of operating voltage.
• A voltage detector of relatively low internal impedance, compared to
the reference value of 100kΩ, 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
temporarily discharge the interference voltage to a level below the
ELV, but it will return 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 proceeding with
testing and maintenance.
• A voltage detector of relatively high internal impedance, compared to
the reference value of 100kΩ, may not clearly indicate the absence of
operating voltage in the presence of interference voltage.

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• When the indication"Voltage Present" appears on a part that is
expected to be disconnected from the installation, it is highly
recommended confirming 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 the 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 manufactured. For this reason, 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 guaranteed.
• 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 work practice.
• 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.

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3.1. Meter Description
1 - NCV
2 - Current Jaws
3 - NCV LED
4 - LEDs for Voltage Display
5 - LED for AC Voltage
6 - LED for Positive Voltage
7 - LED for Negative Voltage
8 - LED for Warning Voltage
9 - LED for Right Rotary Field
10 - LED for Continuity
3. Description
11 - LED for Left Rotary Field
12 - LCD Display
13 - Power and Mode Button
14 - Flashlight and Hold Button
15 - Flashlight
16 - Red Test Probe+ (L2)
17 - Black Test Probe - (L1)
18 - Battery Cover
19 - Black Test Lead Input
20 - Red Test Lead Input

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3.2. Symbols Used on LCD Display
1 - Auto Power Off
2 - Auto Range Mode
3 - Alternating Current
4 - Minus Sign
5 - Direct Current
6 - Number Display
7 - Percent (Duty Ratio)
8 - Hertz (Frequency)
9 - Amperes
10 - Continuity Test
11 - Ohms
12 - Volts
13 - Number Display
14 - Direct Voltage
15 - Minus Sign
16 - Alternating Voltage
17 - Right Rotary Field
18 - Warning Voltage
19 - Left Rotary Field
20 - Low Battery
21 - Data Hold

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4. Operation
4.1. 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, leaking
batteries and damaged test leads.
• 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/current source) before and after every test.
• If the safety of the user can not be guaranteed. switch off the
instrument and secure it to prevent unintentional usage.
4.2. Switching On and Off
• In the off state, press the Power/Mode Button to turn on.
• In the power-on state, press and hold the Power/Mode Button
to switch off.
4.3. Current Test
• Put a single wire into the opening clamp head, and the LCD will
display the current present.
• Place the wire in the correct position of the open jaw head,
otherwise the measurement will be inaccurate.
• The LCD will display the reading.

4.4. Voltage Test
• Connect both test probes with power source.
• The voltage is displayed via LEDs, the measured voltage value will
light up, the different 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 (50VAC/120VDC) is reached or
exceeded, the " " is illuminated,
in the event of no battery power
or main circuit failure.
• Once voltage is applied to the
measuring instrument. press the
HOLD Button, the LCD and LEDs
display shows the recorded reading;
To delete the recorded value, press
the HOLD Button once again.
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4.5. Voltage and Current Measured Simultaneously
• To simultaneously measure voltage and current, insert the test
leads into the meter and switch the meter on.
• Connect the test leads to the power source. On the voltage display,
the LCDs and LEDs will display the voltage measured.
• Place the clamp head over a single cable and the LCD display will
show the Amperage reading that is been measured.
• 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 (50VAC/120VDC) is reached or
exceeded, the " " is illuminated,
in the event of no battery power
or main circuit failure.
• Once voltage is applied to the
measuring instrument. press the
HOLD Button, the LCD and LEDs
display shows the recorded reading;
To delete the recorded value, press
the HOLD Button once again.
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4.6. Rotary Field Indication
• The voltage testers are equipped with a double-pole rotary field
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 thee-phase system, here the instrument
indicates the voltage between two external conductors.
• Connect the instrument Red Test Lead (L2+) with the supposed
phase L2 and the Black test lead (L1-) with the supposed phase
L1, the voltage and the rotary field direction are displayed.
• "R"signifies that the supposed phase L1 is the actual phase L1
and the supposed phase L2 is the actual phase L2, "L" signifies
that the supposed phase L1 is the actual phase L2 and the
supposed phase L2 is the actual phase L1.
• The test result table is as follows:
Black Test Red Test Test Results
Pen (L1-) Pen (L2+)
L1 L2 R
L2 L3 R
L3 L1 R
L1 L3 L
L2 L1 L
L3 L2 L
L1/L2/L3 N/PE No Result
N/PE L1/L2/L3 No Result
• Effective for voltages greater
than 80Vrms.
4.7. Resistance Test
• The Tester measures low ohm resistances between 1 and 1999 Ω Ω
at a resolution of 1 .Ω
• When you do a Resistance test make sure the UUT (Unit under
test) is not live.
4.8. Continuity Test
• When you do a continuity test make sure the UUT (Unit under
test) is not live.
• The continuity 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 is illuminated.
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4.9. NCV Test
• NCV cannot measure voltage, it can only sense whether there is
voltage.
• NCV induced voltage is not less than 100V.
• Can only sense AC voltage.
5. Cleaning
• Prior to cleaning, completely disconnect Voltage Tester from the
measurement circuit.
• 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 before confirming no
moisture is present.
6. Battery Replacement
• When the battery symbol appears on the screen, replace the battery.
• Completely disconnect voltage tester from the measurement circuit.
• Remove the battery compartment screw, battery cover and batteries.
• Replace with new batteries, two type "AA" and check the correct
polarity.
• Close the battery cover and re-screw the screw.
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7.1.General Specifications
Voltage Detection Automatic
Polarity Detection Full Range
Range Detection Automatic
Measurement Principle Double-pole and contact electrode
Safety Standards EN61243-3:2014
Over Voltage Protection 1000V AC/DC
Measurement Category CAT III 1000V / CAT IV 600V
Power Supply 2 x 1.5V "AA" Batteries
Power Consumption Max. 100mA / approx. 300mW
Storage Temperature -10°C up to 55 °C
Storage Humidity Max. 85% relative humidity
Function
LEDs
Range Resolution Frequency
12 TO 1000V
AC/DC
± 12, 24, 50,
120, 230, 400,
690, 1000V AC/DC
Tolerances
Complies with
EN 61243-3:2014
40 to 400Hz
AC Current 0 to 200A AC 1A +3.5% of reading
±5 digit
45 to 65Hz
Voltage 6 TO 1000V
AC/DC
1V AC/DC +3.0% of reading
±5 digit
40 to 400Hz
Function
Continuity Test
Range Accuracy Test Current
0 to 400kΩNominal resistance +50% 5μA
Function
Resistance
Measurement
Range Resolution Test
Current
0Ω to
1999Ω
1Ω
Tolerance
+(5% rdg + 10 digits)
at 20°C
30μA
Temperature
Coefficient
±5 digits/10K
Function
Rotary Field Indication
Range Frequency
(LEDs) 100 to 1000V 50/60Hz
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7.2. Specifications
7. Specifications

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MAJOR TECH (PTY) LTD
South Africa Australia