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ASTROAI USER MANUAL
AUTO RANGING 202D DIGITAL CLAMP METER
Thank you for purchasing the 202D Auto Ranging Digital Clamp Meter from AstroAI. The
AstroAI 202D Auto Ranging Digital Clamp Meter is designed to be safely and accurately used
by professionals in a commercial setting or weekend DIYer's that need a little more utility from
their standard digital multimeter. This manual provides all safety information, operation
instruction, specifications, and maintenance for the meter. This instrument measures AC/DC
voltage, AC Current, Resistance, Continuity, as well as Diode Measurements. Additional
features and functions included polarity indication, data hold, maximum value hold, over range
indication, and automatic power-off. Thank you again for choosing AstroAI, if you have any
questions or concerns regarding your product, please contact us at support@astroai.com.
NOTE: Fully read and understand this manual before using this Digital Multimeter.
This manual provides all safety information, operation instructions, specifications, and
maintenance for the meter. This Digital Clamp Meter has been designed according to EN61010-
1 oncoming electronic measuring instruments with an overvoltage category (CAT II 600V) and
Pollution degree 2.
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Summary of Contents for AstroAI 202D
- Page 1 Thank you for purchasing the 202D Auto Ranging Digital Clamp Meter from AstroAI. The AstroAI 202D Auto Ranging Digital Clamp Meter is designed to be safely and accurately used by professionals in a commercial setting or weekend DIYer’s that need a little more utility from their standard digital multimeter.
- Page 2 WARNING: To avoid possible electric shock or personal injury, and to avoid possible damage to the Meter or to the equipment being tested, adhere to the following rules: ● Before using the Meter, inspect the exterior casing. Do not use the Meter if it is damaged or if all or part of the exterior casing is removed.
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Page 3: General Information
GENERAL INFORMATION Display LCD, 2000 Counts updated 2/sec LCD Size 30*49mm Polarity Indication “-” displayed automatically Over-Range Indication “OL” displayed Low Battery Indication “ ” displayed Range Select Auto Operating Temperature 32°F~104°F (0°C~40°C), less than 80% Relative Humidity Storage Temperature 14°F~122°F (-10°C~50°C), less than 85% Relative Humidity Battery Type... - Page 4 MULTIMETER DIAGRAM ① ⑥ ② ③ ⑦ ⑧ ④ ⑨ ⑤ 1. Transformer Jaws: Picks up AC Current flowing through the conductor. 2. Trigger Press to open the transformer jaws, when the trigger is not pressed, the jaws will automatically close. 3.
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Page 5: Specifications
When this button is pushed, the display will show the last reading and “H” symbol will appear until the DATA HOLD button is pushed again. Data holding will be cancelled automatically when the function switch is changed/rotated. 8. MAX HOLD Button When this button is pushed, the display will show the last Maximum reading and the “M.H.”... - Page 6 AC VOLTAGE (Auto ranging) Range Resolution Accuracy 200mV 0.1mV ±(1.2% of rdg + 5dgts) 10mV ±(1.2% of rdg + 3dgts) 200V 100mV 600V ±(1.2% of rdg + 8dgts) Input Impedance: 10MΩ Frequency Range: 40Hz - 400Hz Overload Protection: 600V DC/AC rms Max.
- Page 7 DIODE AND CONTINUITY Range Introduction Remark The approximate forward Open circuit voltage: about voltage drop will be 1.5V displayed The built-in buzzer will Open circuit voltage: about sound if the resistance is 0.5V less than about 30Ω. Overload Protection: 250V DC/AC RMS For continuity test: When the resistance is between 30Ω...
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Page 8: Auto Power Off
2. Set the function/range switch to “Ω” range. 3. Connect the test leads to the load being measured. 4. Read the results on the display. NOTE: a. For resistance measurements >1MΩ, the meter may take a few seconds to stabilize the reading. -
Page 9: Included In Box
3 Year Warranty Limited Warranty From AstroAI Each AstroAI Digital Multimeter will be free from defects in material and workmanship. This warranty does not cover fuses, disposable batteries and damage from neglect, misuse, contamination, alteration, accident, or abnormal conditions of operation or handling, including overvoltage failures caused by use outside the Multimeter’s specified rating, or normal wear and...
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