AN320 - Measurement Extech - Free user manual and instructions
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| Type | Digital Multimeter |
| Brand | Extech |
| Model | AN320 |
| Category | Measurement |
| Display | LCD, 2000 counts |
| AC Voltage Range | 0-600V |
| DC Voltage Range | 0-600V |
| AC Current Range | 0-10A |
| DC Current Range | 0-10A |
| Resistance Range | 0-20MΩ |
| Capacitance Measurement | Yes, up to 200μF |
| Frequency Measurement | Yes, up to 200kHz |
| Temperature Measurement | Yes, with thermocouple (not included) |
| Diode Test | Yes |
| Continuity Test | Yes, with audible buzzer |
| Auto-Ranging | Yes |
| Data Hold | Yes |
| Safety Rating | CAT II 600V |
| Power Supply | 9V battery (NEDA 1604) or 2x AAA batteries |
| Dimensions | 150 x 70 x 30 mm |
| Weight | Approx. 200 g |
| Accessories Included | Test leads, battery, manual |
| Cleaning | Wipe with dry cloth, no solvents |
| Maintenance | Replace battery when low, check fuses |
Frequently Asked Questions - AN320 Extech
How do I measure AC voltage with the Extech AN320?
Set the rotary switch to the ACV range. Insert the black test lead into the COM jack and the red lead into the V/Ω jack. Connect the probes to the circuit and read the display. For unknown voltage, start with the highest range.
How do I measure DC current?
Turn off power to the circuit. Set the rotary switch to the appropriate DCA range. Insert the black lead into COM and red lead into the mA or 10A jack depending on expected current. Break the circuit and connect the meter in series. Reapply power.
How do I test continuity?
Set the rotary switch to the continuity (sound) symbol. Insert the test leads into COM and V/Ω jacks. Touch the probes together to verify the buzzer sounds. Then touch the two points of the circuit. A beep indicates a complete circuit (< 50Ω).
What battery does the AN320 use?
The Extech AN320 uses a standard 9V battery (NEDA 1604 or 6LR61). Some models may also accept two AAA batteries. Always replace with the same type.
How do I replace the battery?
Turn off the meter and remove the test leads. Remove the screw on the back cover and slide off the battery compartment. Replace the old battery with a new 9V battery, ensuring correct polarity. Reattach the cover and screw.
Is the Extech AN320 auto-ranging?
Yes, the AN320 features auto-ranging for voltage, resistance, and capacitance measurements, simplifying operation by automatically selecting the appropriate range.
What is the accuracy of the AN320?
Accuracy varies by function. For DC voltage, typical accuracy is ±0.5% + 2 digits. For resistance, ±0.8% + 2 digits. Refer to the manual for full specifications.
How do I measure capacitance?
Set the rotary switch to the CAP position. Insert the black lead into COM and red lead into the V/Ω jack. Discharge the capacitor completely. Connect the probes across the capacitor and read the capacitance value.
The display shows 'OL' - what does it mean?
'OL' stands for Over Load. It indicates the measurement exceeds the selected range. For auto-ranging meters, it means the input is beyond the maximum range of the function. Disconnect immediately and select a higher range if applicable.
How should I clean and store the AN320?
Wipe the exterior with a soft, dry cloth. Do not use solvents or abrasive cleaners. Remove the battery if storing for extended periods. Keep in a dry, cool place away from direct sunlight and dust.
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USER MANUAL AN320 Extech
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Product information
Brand : Extech
Model : AN320
Category : Measurement