Major tech MT760 Manuel utilisateur
MT760
100A AC/DC TRMS
MINI CLAMP METER
INSTRUCTION MANUAL
II
2
3
Contents Page no
1. Overview..........................................................................................4
2. Open Case Inspection........................................................................4
3. Safety Precautions.............................................................................4
4. Electrical Symbol...............................................................................5
5. General Standard..............................................................................6
6. Product Panel Figure..........................................................................7
7. LCD Full View Figure..........................................................................8
8. Operation Instructions.......................................................................9
9. AC/DC Current Measurement............................................................10
10. NCV Non-contact Field Measurement.................................................11
11. Other Functions...............................................................................11
12. Technical Index...............................................................................12
13. Maintenance and Repair....................................................................15
4
1. Overview
The MT760 is a 2000 count True RMS 100A AC/DC mini digital clamp
meter with a resolution of 1mA. The meter measures 600V AC/DC,
capacitance, resistance measurements, plus a continuity buzzer and diode
test function. The VFC function allows the user to measure stable voltage
in high frequency applications of Variable Frequency Drives. Added
features include Zero/Relative mode for Capacitance Zero, resistance,
DCV, ACV, DCA and ACA offset adjustment and Non-Contact voltage
detection. Housed in a modern double moulded rubber housing.
2. Open case inspection
Open the package and take out the instrument. Please check
whether the following accessories are missing or damaged. If any
item is missing or damaged, please contact your supplier immediately.
1. Instruction manual - 1 copy
2. 1.5V AAA battery - 2 pieces
3. Probe assemblies - 1 pair
3. Safety precautions
This Meter complies with EN 61010-1,61010-2-032,61010-2-033,
Pollution Degree 2, measurement category: (CAT II 600V, CAT III 300V)
and Double Insulation standards.
Conforms to UL STD. 61010-1, 61010-2-032, 61010-2-033 Certified
to CSA STD. C22.2 NO. 61010-1,IEC STD 61010-2-032, 6101 0-2-033
CAT II: Applicable to test and measuring circuits connected directly
to utilization points (socket outlets and similar points) of the low voltage
MAINS installation.
CAT Ill: Applicable to test and measuring circuits connected to the
distribution part of the building's low-voltage MAINS installation,
before use and follow all safety instructions.
1. Use the clamp meter by following operation instructions, otherwise
safety functions of the current clamp meter may fail to protect you.
2. Abide by national safety laws and regulations. When operating in
dangerous and live wire exposed environment, use personal
protection equipment to prevent accidents such as electric shock and
arc discharge.
3. Do not cross any position other than protective barrier of current
clamp meter.
4. Before each use, check whether current clamp meter housing or
output cable insulation cracks or damaged first, also check for poor
connected parts. Especially pay attention to insulating layer around
the clamping mouth.
5
4. Specifications
5. Before removing the battery cover, please remove clamp meter
from all energized circuit and disconnect lead wire.
6. Do not use clamp meter in circuit with voltage higher than 600V
working or frequency higher than 400Hz.
7. Measurement category class is CAT II 600V/CAT III 300V, pollution
degree is 2. Do not use it out of scope.
8. Be cautious when in environment with exposed wire. Contact with
wire may result in electric shock.
9. For voltage above 60V DC (direct current), 30V AC (AC effective
value) or 42V AC (peak value), such voltage may cause electric
shock.
10. Probe assemblies used for MAINS measurements CAT II 600V/CAT
III 300V according to IEC 61010-031, If you want to replace the
probe assemblies and they need the same level CAT II 600V/CAT
III 300V or better level. Protection impairment if used in a manner
not specified by the manufacturer.
11. Function switches shall be set at the correct position prior to
measurement. Do no switch ranges while measuring voltage or
current.
4. Electrical symbol
Low battery Warning Buzzing on-off
ACV/DCV Diode Earthing
ACA/DCA Double insulation
Danger! High voltage
Comply with European Union directives
Application around and removal from UNINSULATED
HAZARDOUS LIVE conductors is permitted
This symbol signify the product comply with both USA and
Canada requirement
6
5. General standard
1. Maximum faulty operation protection voltage between input terminal
and earthing is 600V.
2. Maximum overload protection for clamp head terminal:100A.
3. Maximum display: 2000 Counts, update 2~3 times per second.
Over range displays "OL".
Diode: approx. 3.2V
Range: automatic (exclusive of electricity gear)
Polarity: automatic
Work temperature: 0°C ~40°C
Relative humidity: 0°C ~30°C :75%,30°C ~40°C :50%
Storage temperature: -10°C~50°C
4. Electromagnetic compatibility:
In 1V/m radio frequency field: overall frequency=designated precision
+5%, radio frequency field above 1V/m has no designated index.
5. Work altitude: 0~2000m
6. Built-in battery: AAA 1.5V x 2 pieces
7. Low battery: LCD displays " “.
8. Dimensions: approx. approx. (175 x 60 x 33.5mm), maximum clamp
head size is 17mm.
9. Weight: approx. 170g (including battery)
6. Product panel figure
1. Clamp head.
2. Protective barrier.
3. Clamp head trigger: pull the trigger to open clamp head.
4. NCV indicator: when the induced AC electric field intensity and
induction distance satisfy designated value, it will send out warning
sound and flashes.
5. Function selection button: rotate this button to switch to corresponding
functions indicated on the panel.
6. HOLD/backlight key: for measuring readings/long press 2s to turn on
or turn off backlight.
7. ZERO key: used for DCA zero, capacitance/voltage measurement
relative value.
8. SELECT key: select function mode, such as ACV/DCV, resistance/ on-
off/diode/capacitance, ACA/DCA, etc. in AC voltage and current gear,
long press this key for more than 2s to enter or exit VFC function.
9. LCD display screen: measurement function, symbol and numerical
value.
7
10. Positive terminal input jack: when measure voltage, resistance/on off/
capacitance/diode, red meter pen inserts into this jack.
11. lnput jack at COM terminal: when measure voltage, resistance/on off/
capacitance/diode, black meter pen inserts into this jack.
12. lndication mark for geometric center of the clamp head.
figure 1.
87
7. LCD full view figure (Figure 2)
figure 2.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
No. Symbols Instructions
True Root Mean Square measurement status prompt
AC/DC voltage measurement prompt
Negative reading
Diode measurement prompt
Circuit on-off measurement prompt
Data hold prompt
Resistance unit: 0, kO, MO
Frequency unit: Hz, kHz, MHz
Voltage unit: mV, V
Current unit: mA, A
Capacitance unit: nF, μF, mF
Non-contact AC voltage induction prompt
Auto range prompt
Zero/relative measurement prompt
Variable frequency voltage/current measurement prompt
Low built-in battery prompt
Auto power-off prompt
9
8. Operation instructions
1. AC/DC voltage measurement
• Select AC voltage or DC voltage gear
• Insert red meter test lead into red jack (positive terminal), black
meter test lead into black jack (COM terminal)
• Touch the test piece by red and black meter test lead, for
example, power socket (Figure 3).
• Read measurement value from LCD screen .
When measure voltage, maximum input voltage is 600V (AC/DC),
do not exceed this limitation, otherwise it may cause electric shock
or damage to the meter.
2. Resistance/circuit on-off/diode/capacitance
• Insert red meter test lead into red jack (positive terminal), black
meter test leads into black jack (COM terminal)
• Connect meter pen in parallel to test piece for measurement
(Figure 4)
• Read measurement value from LCD screen.
When measure resistance/on-off/capacitance/diode range, do
not input voltage over DC 60V or AC 30V to avoid damage.
figure 3.
figure 4.
9. AC/DC current measurement (Figure 5, Figure 6)
1. AC
• Select AC range (2A ~, 20A ~, 100A ~)
• Open clamp head, hook electric wire (single wire), place electric wire
on geometric center indicated by clamp head, make sure the left
and right clamp heads are totally closed. There is no gap between
the left and right clamp heads.
• Read measurement data from LCD.
2. DC
• Press SELECT key to enter DC range (2A=, 20A:, 100A:)
• Press ZERO key before measurement to make readings zero. If it
does not return to zero after one press, then press it several times
until the reading is zero. Note: as the product is highly sensitive, to
ensure correct measurement data, direction of meter during
measurement should be the same as when it is in zero as much as
possible.
• Open clamp head, hook electric wire (single wire), place electric wire
on geometric center indicated by clamp head, make sure the left
and right clamp heads are totally closed. There is no gap between
the left and right clamp heads.
• Read measurement data from LCD. When the reading is positive, it
means current flows from positive end indicated by clamp head to
the negative end. Negative reading is the opposite .
When measure current, unplug test lead to avoid electric shock.
figure 5.
X
X
figure 6.
10
Autres manuels pour MT760
1
Table des matières
Autres manuels Major tech Instrument de mesure
Major tech
Major tech MT960 Manuel utilisateur
Major tech
Major tech MT145 Manuel utilisateur
Major tech
Major tech MT935 Manuel utilisateur
Major tech
Major tech MT930 Manuel utilisateur
Major tech
Major tech MTD15 Manuel utilisateur
Major tech
Major tech MT957 Manuel utilisateur
Major tech
Major tech MT730 Manuel utilisateur
Major tech
Major tech MT876 Manuel utilisateur
Major tech
Major tech MT785 Manuel utilisateur
Major tech
Major tech MT96 Manuel utilisateur
Major tech
Major tech MT940 Manuel utilisateur
Major tech
Major tech MT402 Manuel utilisateur
Major tech
Major tech MT775 Manuel utilisateur
Major tech
Major tech MT782 Manuel utilisateur
Major tech
Major tech MT945 Manuel utilisateur
Major tech
Major tech TRUERMS MTD80 Manuel utilisateur
Major tech
Major tech MT 770 Manuel utilisateur
Major tech
Major tech MT948 Manuel utilisateur
Major tech
Major tech MT150 Manuel utilisateur
Major tech
Major tech MT784 Manuel utilisateur
Manuels Instrument de mesure populaires d'autres marques
Endress+Hauser
Endress+Hauser Proline Promag 50 Caractéristiques techniques
Siemens
Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces
KLINGER
KLINGER CMF V Series Manuel utilisateur
EXFO
EXFO FTB-2 Manuel d'exploitation et d'entretien
Keysight
Keysight M8290A Manuel utilisateur
ADTEK
ADTEK MW-5 Manuel utilisateur