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OPERATION MANUAL SUMMARIZE The instrument is a stable digital multimeter driven by battery. It comes with 28mm high LCD to make reading more clear. Backlight display and overload protection make it convenient to use .This instrument features multi functions for measuring DCV, ACV, DCA,ACA, resistance, capacitance, inductance, diode, transistor, continuity , temperature and frequency.
2 TECHNICAL CHARACTERISTIC 2.1 Accuracy:±(a%× rdg+d) at (23±5)℃ , R.H.<75% , one year guaranteed from the production date. 2.2 TECHNICAL DATA 2.2.1 DCV RANGE ACCURACY RESOLUTION 200mV 100uV ±(0.5%+3) 10mV 200V 100mV 1000V ±(1.0%+5) Input resistance: All ranges: 10 MΩ Overload protection: 250V DV or AC peak value at 200mV range.1000V DC or AC peak value at other ranges.
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2.2.4 ACA RANGE ACCURACY RESOLUTION ±(1.0%+5) 20mA 10uA 200mA ±(2.0%+5) 100uA ±(3.0%+10) 10mA Max measuring voltage drop:200mV. Max Input current: 20A (less than 10 seconds). Overload protection:0.2A/250V fast-blow fuse, 20A/250V quick-action fuse for range 20A. Frequency response: 40Hz-200Hz. Display: Sine wave RMS (AVG value response). 2.2.5 RESISTANCE(Ω)...
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2.2.6 CAPACITANCE (C) RANGE ACCURACY RESOLUTION 20nF 10pF 200nF 100pF ±(2.5%+20) 20uF 10nF 200uF ±(5.0%+5) 100nF Testing frequency: 100Hz Overload protection: 36V DC or AC peak value 2.2.7 INDUCTANCE (L) RANGE ACCURACY RESOLUTION 20mH 10uH ±(2.5%+20) 200mH 100uH 10mH Testing frequency: 100Hz Overload protection: 36V DC or AC peak value 2.2.8 TEMPERATURE (T) RANGE...
Overload protection: 250V DC or AC peak value Warning: DO NOT input any voltage at this range for safety! 2.2.11 TRANSISTOR hFE data TEST Range Displaying value Test condition The base electrode current is approx 0~1000 NPN or PNP 10uA, and Vce is approx 3V 3 OPERATION 3.1 Front panel description...
Do not touch a high voltage circuit when measuring high voltage. 3.3 CURRENT MEASUREMENT 3.3.1 Insert the black test lead into “COM” jack, the red one to “mA” or “20A” jack. 3.3.2 Set the range knob to “A: range, If the measured current is unsure beforehand, set the range knob to the highest range, then reduce it gradually until get the highest resolution readings.
If the capacitance value being measured exceeds the max value of the range selected, LCD displays "OL". set the range knob to the highest range, then reduce it gradually until get the highest resolutions readings Before measuring, LCD display might not be zero; the residual reading will decrease gradually and should be disregarded.
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NOTE: When input is 10Vrms or less, a reading is possible but maybe over-range. Shielded cable is recommended when measuring small signals under noisy conditions. Be careful when measuring high volt circuit. Do not input a voltage over DC 250V or AC peak factor to avoid damage to the meter.
4 MAINTENANCE DO NOT tamper with the circuit it’s a precision meter and should only be serviced by factory personnel. 4.1 Do not operate or store the instrument in high temperature or high humidity place and do not work closed to flammability substance or explosive or strong magnetic field.