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Summary of Contents for Major tech MT760
- Page 1 INSTRUCTION MANUAL MT760 100A AC/DC TRMS MINI CLAMP METER...
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Page 3: Table Of Contents
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. -
Page 4: Overview
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. -
Page 5: Electrical Symbol
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. -
Page 6: General Standard
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... - Page 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.
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Page 8: Lcd Full View Figure
7. LCD full view figure (Figure 2) figure 2. 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... -
Page 9: Operation Instructions
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). -
Page 10: Ac/Dc Current Measurement
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. -
Page 11: Ncv Non-Contact Field Measurement
10. NCV non-contact electric field measurement (Figure 7) If you want to measure whether there is AC voltage or electromagnetic field, place front end of clamp head 8~15mm close to the test piece, analog quantity of inductive AC voltage is about ≤ critical voltage 100V, display "EF", < critical voltage 100V, display"-", it has four"----"... -
Page 12: Technical Index
the circuit-under-test is conductive (≤10Ω), buzzer makes sound continuously. When measure voltage or current outrange, buzzer will "Beep" to warn outrange, function status is as below: a) When AC, DC voltage <600V, buzzer beeps b) 100A AC and DC gear: current >maximum range, buzzer beeps. •... - Page 13 Input resistance: 10MΩ in average. Maximum input voltage: 600V RMS • Show true virtual value. Frequency response: 45~400Hz • Accuracy guarantee range: 5-100% range, short circuit allows <10 residue readings. • Non-sinusoidal wave counts add error by crest factor: When crest factor is 1~2: Add 3%. When crest factor is 2~2.5: Add 5%.
- Page 14 6. DCA measurement Range Resolution Accuracy 2.000A ± (2%+8) 20.00A 10mA ± (2%+3) 100.0A 100mA ± (2%+3) Overload protection 100A As external electromagnetic field such as the earth exists, to ensure accuracy of measurement reading, press ZERO key before measurement to make readings be zero. If it is not zero after one press, press it for several times until reading is zero.
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Page 15: Maintenance And Repair
13. Maintenance and repair Warning: before removing rear cover of the instrument, make sure power supply is off; meter leads are removed and circuit-under-test. 1. General maintenance and repair Ÿ For maintenance and repair, use wet cloth and mild cleaner to clean instrument cover, do not use grinding agent or solvent. - Page 16 MAJOR TECH (PTY) LTD South Africa Australia www.major-tech.com www.majortech.com.au sales@major-tech.com info@majortech.com.au...
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