User Manual for ZOYI models including: ZT-102L, ZT-102L Digital Multimeter, Digital Multimeter, Multimeter
مولتی متر زویی ZOYI مدل ZT-102L | فروشگاه تکترونیکس
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DocumentDocumentZT-102L Digital Multimeter User Manual -1- A. Overview The ZT-102L is a battery-powered digital multimeter with true RMS and autoranging capabilities. In addition to the standard multimeter functions, it also features inductance measurement. The instrument has a 6000-count display, an LCD screen with backlight for clear readings.. B. Safety Information To prevent possible electric shock, fire, or personal injury, please read the safety precautions before use. (1) During measurement, do not exceed the "Technical Specifications" maximum measurement value. (2) Voltages below 36V are considered safe. When measuring DC voltage above 36V or AC voltage above 25V, ensure that the test leads have reliable contact, correct connections, and good insulation to avoid electric shock. (3) When changing functions or ranges, the test leads should be removed from the test points. (4) Select the correct function and range; an over-range measurement will display "OL." (5) Safety symbol explanation: Hazardous Voltage Earth Double Insulated Low Battery Risk of Danger. Check the User Manual. C. Specifications Function Range 6.000V DC Voltage 60.00V V 600.0V 1000V DC Voltage 60.00mV mV 600.0mV 6.000V AC Voltage 60.00V V 600.0V 750V AC Voltage 60.00mV mV 600.0mV DC Current 6.000A A 10.00A DC Current 60.00mA mA 600.0mA AC Current 6.000A A 10.00A AC Current 60.00mA mA 600.0mA Electrical Specifications Resolution Accuracy MAX.Value Other 0.001V 0.01V 0.1V 1V 1000V ±(0.5%+3) Input Resistance:10M 0.01mV 0.1mV 600mV 0.001V 0.01V 0.1V 1V ±(1.0%+3) 750V Input Resistance:10M 600mV range, 60M Frequency Response: 0.01mV 0.1mV 600mV 40Hz-1kHz 0.001A 0.01A 0.01mA 0.1mA ±(1.2%+3) 10A 600mA MAX.Current10Ano more than 15 seconds No Voltage input at this 0.001A 0.01A 0.01mA 0.1mA ±(1.5%+3) 10A 600mA mode Frequency Response(AC): 40Hz-1kHz -2- Function Range Resolution Accuracy MAX.Value Other Resistance 600.0 6.000k 60.00k 600.0k 6.000M 60.00M 6.000nF 0.1 0.001k 0.01k 0.1k 0.001M 0.01M 0.001nF ±(0.5%+3) ±(1.5%+3) ±(5.0%+20) 60M Disables input voltage in this mode 60.00nF 0.01nF Capacitance 600.0nF 6.000F 60.00F 600.0F 0.1nF 0.001F 0.01F 0.1F ±(2.0%+5) 60.00mF Disables input voltage in this mode 6.000mF 60.00mF 0.001mF 0.01mF ±(5.0%+5) 99.99Hz 0.01Hz 999.9Hz 0.1Hz Frequency 9.999kHz 99.99kHz 0.001kHz 0.01kHz ±(0.1%+2) 9.999MHz 999.9kHz 0.1kHz 9.999MHz 0.001MHz 6.000mH 0.001mH ±(5%+50) Inductance 60.00mH 600.0mH 6.000H 0.01mH 0.1mH 0.001H ±(3%+10) 60.00H Disables input voltage in this mode 60.00H 0.01H ±(5%+50) Duty Cycle 1%~99% 0.1% ±(0.1%+2) Diode (DC forward current is 5mAvoltage is 3.9V Continuity (no more than 50) Temperature (-20~1000) (-4~1832) 1 1 ±(2.5%+5 1000 1832 Disables input voltage in this mode General Specifications LCD Display 6000 counts Measurement Range Auto Material ABS Sampling Rate 3 times/second Ture RMS Data Hold Screen Backlight Low Battery Indication Auto Power Off Mechanical Specifications Dimension 130*65*32mm Weight 130g(battery included) Battery Type 1.5V AAA Battery * 2 Warranty One years Environmental Specifications Operating Environment Temperature Humidity 0~40 75% Storage Temperature -20~60 Environment Humidity 80% Safety Specifications EN 61010-1: 2010; EN 61326-1: 2013; FCC Part 15 Subpart B: 2016 Standard Accessories Battery * 2pcs; Test Lead * 1 pair; Drawstring Pouch * 1pc TP01K thermocouple probe * 1pc ; English User Manual; Gift Box -3- D. Instruction (1) Panel Description (refer to the image on the right) 1. LCD Display: Displays the measured values and units. 2. Function Keys 2a. "HOLD" Key: Press this key to freeze the current reading, and the screen will display the "HOLD" symbol. Press again to exit the hold state. To activate the backlight, press and hold this key for more than 2 seconds, and press again to turn off the backlight. 2b. "SELECT" Key: Press this key to toggle between AC/DC voltage, diode/resistance/continuity, or / ranges. 3. Rotary Switch: Used to change the measurement function and range. 3 (Starting from OFF and rotating clockwise) 3a. OFF Position: Power-off mode. 3b. AC/DC Voltage(V)/Frequency/Duty Cycle Range (referred to as voltage range). 3c. AC/DC Millivolt Voltage(mV)/Frequency/Duty Cycle Range (referred to as small voltage range). 3d.Resistance/Continuity/Diode/Capacitance Range (referred 6 to as resistance range). 3e. Non-Contact Voltage Detection Range (NCV). 3f. Inductance Range (L). 3g. AC/DC Current (A) Range (referred to as current range). 3h. AC/DC Current (mA) Range (referred to as small current range). 1 2 4 5 4. VHz: Input terminal for voltage, resistance, capacitance, inductance, frequency, temperature, current (mA), continuity, diode, and duty cycle measurements. 5. COM: Common terminal for all measurements. 6. 10A: Input terminal for current (A) measurements. 2Voltage Measurement 1. Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the voltage range or millivolt voltage range. 3. Press the SELECT key to toggle between AC and DC voltage measurement. 4. Touch the test leads to the correct test points on the circuit. 5. Read the displayed voltage value on the screen. *Attention: a. The measured voltage must not exceed the rated maximum test value, as it may damage the instrument and pose a risk to personal safety. b. When measuring high-voltage circuits, avoid touching the high-voltage components. -4- (3) Current Measurement 1. Insert the black test lead into the "COM" jack, and the red test lead into the "VHz" jack (for maximum test value of 600mA) or the "10A" jack (for maximum test value of 10A). 2. Turn the knob switch to the current range or small current range. 3. Press the SELECT key to toggle between AC and DC current measurement. 4. Disconnect the circuit path to be tested, connect the test leads in series with the circuit, and apply power to the circuit. 5. Read the displayed current value on the screen. * Attention: a. The measured current must not exceed the rated maximum test value, as it may damage the instrument and pose a risk to personal safety. b. If the magnitude of the current to be measured is unknown, perform a preliminary test using the 10A jack and then select the appropriate range based on the displayed value. Under the current measurement mode, it is strictly prohibited to input voltages higher than 36V DC or 25V AC peak. (4) Resistance Measurement 1. Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the resistance range, and the screen will display "OL" by default. 3. Touch the test leads to the desired circuit test points.; 4. Read the displayed resistance value on the screen. * Attention: a. Before measuring live resistance, ensure that all power sources in the tested circuit are turned off, and all capacitors are completely discharged. b. Inputting voltage in the resistance range is strictly prohibited. (5) Continuity Measurement 1. Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the resistance range, and press the SELECT key once to switch to the continuity range. 3. Touch the test leads to the two points of the circuit to be tested. 4. If the resistance value is less than 50, the buzzer will sound, indicating a short circuit. *Attention: a. Inputting voltage in the continuity range is strictly prohibited. (6) Diode Measurement 1, Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the resistance range, and press the SELECT key twice to switch to the diode range. 3. Connect the red test lead to the positive terminal of the diode to be tested, and the black test lead to the negative terminal. -5- 4, Read the forward voltage displayed on the screen.; 5. If the test lead polarity is reversed or the diode is faulty, the screen will display "OL." *Attention: a. Inputting voltage in the diode range is strictly prohibited. b. Before testing, disconnect the circuit's power supply and discharge all high-voltage capacitors. (7) Capacitance Measurement 1. Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the resistance range, and press the SELECT key three times to switch to the capacitance range. 3. Connect the red test lead to the positive terminal of the capacitor to be tested, and the black test lead to the negative terminal. 4. . After the reading stabilizes, read the displayed capacitance value on the screen.. * Attention : Before testing, disconnect the circuit's power supply and discharge all high-voltage capacitors. (8) Frequency and Duty Cycle Measurement 1. Insert the black test lead into the "COM" jack and the red test lead into the "VHz" jack. 2. Turn the knob switch to the frequency range, and press the SELECT key again to measure the duty cycle if needed. 3. Touch the test leads to the desired circuit test points.; 4. Read the displayed frequency/duty cycle value on the screen. * Attention : a. The frequency range is suitable for measuring high frequencies and low voltages. (9) Temperature Measurement 1. Insert the black plug of the thermocouple into the "COM" jack and the red plug into the "VHz" jack. 2. Turn the knob switch to the temperature range, and the screen will display the room temperature by default. Press the SELECT key to switch between /. 3. Place the temperature sensor of the thermocouple in the temperature field to be measured. 4. Read the displayed temperature value on the screen. * Attention : a. Inputting voltage in the temperature range is strictly prohibited. (10) Inductance Measuring 1. Insert the black test lead into the "COM" terminal and the red test lead into the "VHz" terminal. 2. Turn the knob switch to the "L" (inductance) position. 3. Use the red and black test leads to probe the two terminals of the inductor to be measured. The instrument will automatically select the appropriate range based on the inductance value. 4. After the reading stabilizes, read the inductance value displayed on the screen. -6- (11) Auto Power Off 1. If the instrument is not used for 15 minutes, it will automatically power off. 2. One minute before powering off, the built-in buzzer will emit five beeps as a reminder. 3. To restart the instrument after auto power off, simply press the SELECT key to turn on the power. 4. If you wish to disable the auto power off function, hold down the SELECT key while turning on the instrument. The buzzer will emit four beeps, indicating that the auto power off has been canceled. E. Maintenance and Care Except for battery and fuse replacement, please do not attempt to repair this product or modify the circuit unless you have the required qualifications and possess the appropriate calibration, performance testing, and maintenance operation instructions. (1) This product should not be stored or used in high-temperature, high-humidity, flammable, explosive, or strong magnetic field environments. (2) Use a damp cloth and mild cleaning agent to clean the casing; do not use corrosive agents or solvents. (3) Before cleaning the product, ensure to clear the input signal first. (4) If not in use for an extended period, remove the battery to prevent battery leakage and corrosion of the instrument. (5) Pay attention to battery usage; when the display shows the " " symbol, replace the battery following these steps: 1Unscrew the screw holding the battery in place on the back cover, and open the battery compartment door; 2Remove the old battery and replace it with two new batteries of the same type.; 3. Close the battery compartment door and tighten the screw. (6) When replacing the fuse, use a fuse of the same specification and model. Follow the same steps as in (5). Warning 1. Do NOT exceed the "maximum value" indicated in the Specification; 2. Do not measure voltage in current resistance diode continuity temperature or inductance mode. 3. Do not use this instrument when the battery is not installed or the back cover is not securely closed. 4. Before replacing the battery or fuse, remove the test leads from the test points and turn off the instrument. F. Troubleshooting If your instrument is not functioning properly, the following methods can help you quickly resolve common issues. If the problem persists and cannot be resolved, please contact the maintenance center or the distributor for assistance. Fault Phenomenon Display screen not showing Symbol appearing No current input Inspection Area and Method Power not connected; Replace battery Replace battery Replace fuse Limited Warranty and Scope of Responsibilities From the date of purchase, this product is eligible for a one-year warranty service. However, this warranty does not cover fuses (blown), disposable batteries (used up), or damages resulting from accidents, negligence, misuse, modification, contamination, or abnormal operating environments. Any changes to this user manual will not be separately notified; The contents of this user manual are believed to be accurate. If users find any errors, omissions, etc., please contact the manufacturer; The company is not liable for accidents and hazards caused by user errors in operation; The functions described in this user manual should not be considered as reasons to use the product for special purposes. -7- -8-Acrobat PDFMaker 21 PowerPoint 版 3-Heights(TM) PDF Optimization Shell 5.9.1.5 (http://www -tools.com)