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MT-3109 AC/DC Digital Clamp Multimeter Overview This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly. Warning To avoid electric shock or personal injury, read the “Safety Information"...
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MT-3109 AC/DC Digital Clamp Multimeter Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired. In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test.
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MT-3109 AC/DC Digital Clamp Multimeter Do not carry out the measurement when the Meter's back case and battery compartment are not closed to avoid electric shock. Do not input higher than 600V between the two Meter's input terminal to avoid electric shock and damages to the Meter.
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MT-3109 AC/DC Digital Clamp Multimeter International Electrical Symbols AC (Alternating Current) DC (Direct Current) AC or DC Grounding Double Insulated Warning. Refer to the Operating Manual Deficiency of Built-In Battery Continuity Test Diode Capacitance Test Fuse Conforms to Standards of European Union The Meter Structure (see figure 1) 1.
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MT-3109 AC/DC Digital Clamp Multimeter Rotary Switch Below table indicated for information of rotary switch positions. Rotary Switch Function Position Power is turned off AC or DC voltage measurement Ω Resistance measurement : Diode test : Continuity test Hz / Duty %...
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MT-3109 AC/DC Digital Clamp Multimeter Button Operation Performed Press SELECT button to select the alternate Select functions marked in blue color on the Meter's faceplate including Hz, Duty%, , and 400 After the Meter entering Sleep Mode, press and hold SELECT to turn the Meter on, it will disable the Sleep Mode feature.
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MT-3109 AC/DC Digital Clamp Multimeter Meaning Symbol Indicator for AC voltage or current Indicator for DC voltage The battery is low. Warning: To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator appears.
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MT-3109 AC/DC Digital Clamp Multimeter Measurement Operation A. DC/AC Voltage Measurement (see figure 3) Warning To avoid harms to you or damages to the Meter from electric shock, do not attempt to measure voltages higher than 600V AC/DC, although readings may be obtained The DC Voltage ranges are: 400mV, 4V, 40V, 400V and 600V.
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-3109 AC /DC Digital Clamp Multimeter Warning To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors before measuring resistance. The resistance ranges are: 400Ω, 4kΩ, 40kΩ,400kΩ,4 MΩ and 40MΩ. To measure resistance, connect the Meter as follows: 1.
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MT-3109 AC/DC Digital Clamp Multimeter voltage drop across the junction. A good silicon junction drops between 0.5V and 0.8V. To test the diode out of a circuit, connect the Meter as follows: 1. Insert the red test lead into the Hz Duty% -i))-H VQ terminal and the black test lead into the COM terminal.
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MT-3109 AC/DC Digital Clamp Multimeter 3. The buzzer may or may not sounds if the resistance of a circuit under test is between 50Ω to 100Ω 4. The buzzer does not sound if the resistance of a circuit under test is higher than 100Ω...
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MT-3109 AC/DC Digital Clamp Multimeter F. Duty Cycle Measurement (see figure F. Duty Cycle Measurement (see figure Warning To avoid harms to you or damages to the Meter from electric shock, do not attempt to measure voltages higher than 600V AC/DC, although reading may be obtained.
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MT-3109 AC/DC Digital Clamp Multimeter 3. Press the lever to open the transformer jaw. 4. Center the conductor within the transformer jaw, then release the Meter slowly until the transformer jaw is completely closed, Make sure the conductor to be tested is placed at the center of the transformer jaw, otherwise it will cause deviation.
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MT-3109 AC/DC Digital Clamp Multimeter H. Capacitance measurement (see figure 10) figure 10 Warming To avoid damage to the Meter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. Use the DC voltage function to confirm that the capacitor is discharged.
MT-3109 AC/DC Digital Clamp Multimeter Specifications A. General Specifications: Maximum Voltage between any Terminals and grounding: Refer to different range input protection voltage. Display: 3 3/4 digits LCD display, Maximum display 3999 Polarity: Automatically display. Overloading: Display OL or -OL ...
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MT-3109 AC/DC Digital Clamp Multimeter Accurate Specifications Accuracy: +(a% reading + b digits). Operating temperature: 23℃±5℃ Relative humidity: ( 85%R.H) Temperature coefficient: 0.1x (specified accuracy)1℃ A. DC Voltage Overload Range Resolution Accuracy protection 400.0mV 0.1mV +(1 %+3) 4.000V +(1 %+1) 40.00V...
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MT-3109 AC/DC Digital Clamp Multimeter C. Resistance Overload Range Resolution Accuracy protection 400.0Ω 100mΩ +(1.2%+5) 4.000kΩ 1Ω +(1 %+5) 40.00kΩ 10Ω 600Vp 400.0kΩ 10Ω 4.000MΩ 1kΩ +(1.2%+5) 40.00MΩ 10kΩ +(1.5%+5) D. Diode Test Range Resolution Accuracy Overload protection Display forward...
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MT-3109 AC/DC Digital Clamp Multimeter F. Frequency Overload Range Resolution Accuracy protection 10Hz 0.00Hz 100Hz 0.01Hz 1kHz 0.1Hz 600Vp +(0.1 %+5) 10kHz 100kHz 10Hz 1MHz 100Hz 10MHz 1kHz reference only Remark: Input Sensitivity as follows: When ≤ 100kHz: ≥ 300mV rms;...
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MT-3109 AC/DC Digital Clamp Multimeter Hold the Meter tight and press the lever to open the transformer jaw. Center the conductor within the transformer jaws, then release the Meter slowly until the transformer jaw is completely closed. Make sure the conductor to be tested is placed at the center of the transformer jaw, otherwise it will cause +1 .0% deviation based on the stated accuracy.
MT-3109 AC/DC Digital Clamp Multimeter ●Change to AC: Change to AC by using average response method. Input sine wave, then adjust the reading until it is same as the effective value. J. Capacitance Range Resolution Accuracy Overload Protection Measure at REL...
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-3109 AC /DC Digital Clamp Multimeter B. Replacing the Battery (see figure 11) Warning To avoid false readings, which could lead to possible electric shock or personal injury, replace the battery as soon as the battery indicator " " appears. Make sure the transformer jaw and the test leads are disconnected from the circuit being tested before opening the case bottom.