Index General…………………………………………………………………. 2 Open Package Inspection…………………………………..……. 2 Safety Note………………………………………………………… 3 Safety Symbol Description …………………………………...4 Fr on t Pa nel Des c ripti on …… …… … … …… …… … … … .. . 5 Property………………………………………………………………….7 DC Voltage (DCV) …………………………………………………7 AC Voltage (ACV) …………………………………………………8 DC Current (DCA) …………………………………………………9 AC Current (ACA) …………………………………………………11...
General The instrument is a high performance, high accuracy, 3 5/6 dual display DMM w/usb connector multimeter, it uses the LCD with 24mm high figure to make the reading clear, the display simple and the operation convenient. The instrument can measure DC and AC voltage, DC and AC current, Resistance, Capacitance, Frequency, Duty Circle, Transistor, Diode and Continuity test;...
Safety Note The instrument meets the standard of IEC1010 (safety standard promulgated by the International Electrician Committee). Design and manufacture complied with the standard of Pollution Degree Warning To avoid endangering the users safety, should read the operation manual carefully before operation, and strictly obey the safety warning information and operation description when use the instrument.
7. Do not store and use the instrument in high humility, high temperature, combustible, explosive and strong magnetic places. 8. It is possible to damage the instrument and endanger the safety of the users when measuring the voltage over the range limit. The allowed maximum voltage is printed on the front panel of the instrument, do not input the range limit specified to avoid the electric shock and instrument damage...
Front Panel Description 1. Instrument Model Number 2. LCD Display 3. RANGE: Auto Range/ Manual Range switch, the default is set as Auto Range mode when turning on, press the button and switch to Manual Range. At the Manual Range mode, press the button once, the range is switched to the higher one, press the button again to switch the range to the lowest...
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6. MAX/MIN: Maximum, Minimum, press the button, the instrument gets into the MAX mode, the measuring maximum value will be held at this mode; Press the button again to get into the MIN mode, the measuring minimum value will be held at this mode. At the MAX/MIN mode, the maximum or minimum value will be held on LCD.
Note: a) Do not measure the voltage higher than DC 1000V or AC 750V. b) When measuring the high voltage, caution to avoid electric shock. Cut the connection between the test lead and tested circuit at once after measurement. C) At the Manual Range mode, if “OL” is displayed on LCD, it indicates the tested voltage value has exceeded the present range limit, please select the higher range to complete the measurement Range...
the red test lead and the tested voltage value will be displayed on LCD simultaneously Note: a) Do not measure the voltage higher than DC 1000V or AC 750V. b) When measuring the high voltage, caution to avoid electric shock. Cut the connection between the test lead and tested circuit at once after measurement.
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3. At the Manual Range mode,if “OL” is displayed on LCD, it indicates the test current value has exceeded the present range limit, please select the higher range to complete the measurement. Note: a) Do not measure the current higher than 10A at Range 10A and higher than 6000uA at uA Range and higher than 600mA at mA Range, otherwise the fuse will be burnt out or the instrument will be damaged.
Max input current: 10A (less than 15 seconds). Overload protection: 0.5A/250V fuse, 10A/250V fuse. AC Current (ACA) 1. Insert the black test lead to “COM” input terminal and the red test lead to “mA ”or “10A”input terminal,displayed as the picture. 2.
Range Accuracy Resolution 600uA 0.1μA 1μA 6000uA ±(1.5%+10d) 10μA 60mA 100μA 600mA ±(2.0%+15d) 10mA Max input current : 10A (less than 15 seconds). Frequency response: 40-100Hz Overload protection:0.5A/250V fuse, 10A/250V fuse. Duty Circle Indication: (0.1%-99.9%) Resistance (Ω) 1. Turn the function/range selection knob to Ω, insert the red and black test lead separately to VΩHz and COM input terminal.
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4. At the Manual Range mode,if “OL” is displayed on LCD, it indicates the tested resistance value has exceeded the present range limit, please select the higher range to complete the measurement. Note: a) When measuring the in-circuit resistance, Make sure all the power of the tested circuit has been turned off and all capacitors are fully discharged.
Open circuit voltage: 400mV. Over range protection: 250V AC/DC peak value. Diode and Continuity Test 1. Turn the function/range selection knob to Range, Insert the red and black test lead separately to VΩHz and COM input terminal. Press “SELECT” button to choose the Buzzer or Diode measurement function.
Range Display Test Condition Diode Forward AC Current:1.0mA, Forward Counter Voltage: 3.0V voltage drop Buzzer sound at less than Open Voltage: 0.5V 50Ω Overload protection: 250V DC/AC peak value. Warning: Do not input the voltage at the range for safety. Capacitance (C) 1.Turn the function/range selection knob to Capacitance Range.
Range Accuracy Resolution 40nF ±(5.0%+30d) 10pF 400nF 100pF 4μF ±(3.5%+8d) 40μF 10nF 200μF ±(5.0%+10d) 100nF Overload protection: 250V DC/AC peak value WARNING: Do not input any voltage at this range for safety! Frequency (Hz) 1. Turn the function/range selection knob to Hz Range. Insert the red and black test lead separately to VΩHz and COM input terminal.
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get into the mode of DUTY measurement, and press “Hz/DUTY” button again to return to the mode of Frequency measurement. 4. When measuring AC current or voltage, press “Hz/DUTY” button to get into the mode of Frequency measurement, and press “Hz/DUTY”...
Transistor Test 1. Turn the function/range selection knob to “hFE” Range, displayed as the right picture. 2. Insert the accessory of Transistor test into the “mA ” and “COM” input terminal, displayed as the picture.According to the model of the tested transistor, insert the accessory accordingly into the terminal of “EBC”...
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positive end into the “mA” input terminal. 3. Connect the sensor of the temperature cable to the surface or inside of the tested object, read the present test result from LCD. 4. Press “SELECT” button to switch Fahrenheit or Centigrade temperature measurement mode.
Other Functions and Instrument Maintenance Other Functions 1. Data Hold Press “HOLD” button, the present value is held on LCD; Press the button again, exit the hold mode and get in the normal measuring status. 2. Auto Power Off Stop working for 15 minutes, the instrument will auto power off, and get into the sleeping mode.
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1. Keep the instrument dry, and keep it away form dust and shock. 2. Do not store and use the instrument in high humility, high temperature, combustible, explosive and strong magnetic places. 3. Clean the surface of the instrument with the damp cloth and gentle detergent, do not use the strong solvent like the abrasive cleaner and alcohol, etc.
Software Operation Install MT-1820 software disc in your computer, please double-click the installation program to automatically install and follow the instructions. When finished, it will automatically generate a shortcut on the desktop. Please follow the description as below: How to connect to your computer Please connect the USB cable of this product to the USB port on your computer.
Some of the measuring functions only have the data record without graphics, please follow record data. Some of the measuring functions, when open the record date, the graphics is only for reference, please follow record data. Prokit’s reserves the right for the use and interpretation of the software, version updates at any time if necessary please pay attention to be noted.