EX520A - Multimeter Extech - Free user manual and instructions
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| Product Type | Digital Multimeter |
| Model | EX520A |
| Brand | Extech |
| DC Voltage Range | 200mV to 600V |
| AC Voltage Range | 200mV to 600V |
| DC Current Range | 200µA to 10A |
| AC Current Range | 200µA to 10A |
| Resistance Range | 200Ω to 20MΩ |
| Capacitance Range | 20nF to 200µF |
| Frequency Range | 20kHz to 200kHz |
| Temperature Range | -20°C to 1000°C (-4°F to 1832°F) with K-type probe |
| Continuity Test | Buzzer sounds if resistance < 30Ω |
| Diode Test | Yes, forward voltage drop |
| Display | LCD with backlight, 2000 counts |
| Auto-Ranging | Yes |
| Data Hold | Yes |
| Relative Mode | Yes |
| Safety Rating | CAT III 600V |
| Power Supply | 9V battery (6F22 or NEDA 1604) |
| Dimensions | 6.5 x 3.0 x 1.5 in (165 x 76 x 38 mm) |
| Weight | Approx. 400 g (14.1 oz) including battery |
| Overload Protection | Yes, with replaceable fuse (F500mA/250V and F10A/250V) |
| Low Battery Indicator | Yes, icon on display |
| Accessories Included | Test leads, K-type thermocouple, 9V battery, user manual |
Frequently Asked Questions - EX520A Extech
How do I measure DC voltage with the EX520A?
Set the rotary switch to the V⎓ position. Connect the black lead to COM and the red lead to V/Ω/Hz. Touch the probes to the circuit. Read the voltage on the display.
How do I replace the battery in the Extech EX520A?
Turn off the meter and remove the test leads. Loosen the screw on the battery compartment cover (located on the back). Slide off the cover. Replace the 9V battery with a new one. Reattach the cover and tighten the screw.
How do I test continuity with the EX520A?
Set the rotary switch to the ))))) continuity position. Connect the black lead to COM and the red lead to V/Ω/Hz. Touch the probes to the two points. If the resistance is less than about 30Ω, the buzzer will sound.
What is the accuracy of the EX520A for DC voltage?
For DC voltage, the accuracy is ±(0.8% reading + 1 digit) for ranges up to 600V. Higher ranges may have different specs. Refer to the manual for full specifications.
How do I measure AC current with the EX520A?
Set the rotary switch to the A⎓ or A~ position for DC or AC respectively. Connect the black lead to COM and the red lead to the 10A jack for high current (up to 10A) or to the mA/μA jack for low current. Break the circuit and connect the probes in series.
What does 'OL' mean on the display?
OL stands for Overload. It indicates that the measured value exceeds the selected range. Switch to a higher range or use a different function.
How do I use the Data Hold function?
Press the HOLD button to freeze the current reading on the display. Press it again to release the hold. This is useful when measuring in hard-to-see locations.
Can I measure temperature with the EX520A?
Yes. Set the rotary switch to the TEMP position. Insert the K-type thermocouple (included) into the COM and V/Ω/Hz jacks. Touch the probe to the object. Read the temperature in °C or °F.
How do I clean the Extech EX520A?
Turn off the meter and remove test leads. Wipe the exterior with a soft, damp cloth. Do not use abrasive cleaners or solvents. Keep the input terminals dry and clean.
What type of fuse does the EX520A use?
The EX520A has two replaceable fuses: one F500mA/250V fast-blow for low current ranges and one F10A/250V fast-blow for the 10A range. Use only specified fuses.
User questions about EX520A Extech
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USER MANUAL EX520A Extech
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Product information
Brand : Extech
Model : EX520A
Category : Multimeter