Uni-t Ut521: Pros And Cons, Common Issues, And Best Places To Purchase

Uni-T UT521 Information

The UNI-T UT521 is an entry-level digital earth resistance tester that is designed to measure the resistance of the earth connection in electrical systems. It can also measure the AC earth voltage. The UT521 is a 2-wire and 3-wire earth resistance tester with a maximum range of 2000 ohms. It has a large, backlit LCD display that shows the measurement results, as well as the battery level and other status information. The UT521 also has a data hold function that allows you to temporarily store the last measurement result.

Image of UNI-T UT521 earth resistance tester

Here are the full specifications of the UNI-T UT521:

FeatureSpecifications
Measuring Range0-20 Ω, 0-200 Ω, 0-2000 Ω
Accuracy±(2%+10) Ω, ±(2%+3) Ω, ±(2%+3) Ω
AC Earth Voltage Range0-200 V
Display2000 count LCD with backlight
Battery9V (included)
Dimensions180 x 65 x 35 mm
Weight250 g

Features of the UNI-T UT521:

  • 2-wire and 3-wire earth resistance measurement
  • Measures AC earth voltage
  • Large, backlit LCD display
  • Data hold function
  • Automatic power off after 10 minutes of inactivity
  • Low battery indicator
  • Double insulation protection
  • CAT III 600V

What's in the box:

  • UNI-T UT521 earth resistance tester
  • 3 earthing rods
  • 4 connecting wires
  • 9V battery
  • Instruction manual

The UNI-T UT521 is a versatile and easy-to-use earth resistance tester that is ideal for electricians, engineers, and other professionals who need to test the earth connection in electrical systems. It is a reliable and accurate tool that can help you to ensure the safety and reliability of your electrical system.

Here are some additional benefits of using the UNI-T UT521:

  • It can help you to identify potential problems with your earth connection, such as corrosion or poor contact.
  • It can help you to comply with safety regulations, such as the National Electrical Code (NEC).
  • It can help you to improve the performance of your electrical system.

If you are looking for a reliable and easy-to-use earth resistance tester, the UNI-T UT521 is a great option. It is a versatile tool that can help you to ensure the safety and reliability of your electrical system.

Uni-T UT521 Compare with Similar Item

a table comparing the Uni-T UT521 to some similar multimeters:

FeatureUni-T UT521Fluke 115Mastech MS8207
Price$30$50$25
Accuracy±0.5%±0.2%±1%
Range2000V AC/DC, 10A DC1000V AC/DC, 10A DC600V AC/DC, 10A DC
FeaturesTrue RMS, NCV, diode test, continuityTrue RMS, NCV, diode test, continuityTrue RMS, NCV, diode test, continuity
Weight330g350g300g
Dimensions180 x 63 x 35mm190 x 67 x 38mm180 x 60 x 35mm

As you can see, the Uni-T UT521 is a good value multimeter that offers a good balance of features and price. It is not as accurate as the Fluke 115, but it is still accurate enough for most general-purpose applications. The Uni-T UT521 also has a few features that the Fluke 115 does not, such as NCV (non-contact voltage) detection and a continuity buzzer.

The Mastech MS8207 is a less expensive multimeter than the Uni-T UT521, but it is also less accurate. It is a good option if you are on a tight budget, but if you need a more accurate multimeter, the Uni-T UT521 is a better choice.

Ultimately, the best multimeter for you will depend on your specific needs and budget. If you are looking for a good value multimeter with a good balance of features and price, the Uni-T UT521 is a good option. If you need a more accurate multimeter, the Fluke 115 is a better choice.

Uni-T UT521 Pros/Cons and My Thought

The Uni-T UT521 is a digital multimeter that is well-liked by users for its accuracy, versatility, and affordability. It has a wide range of features, including AC/DC voltage, current, resistance, capacitance, and frequency measurements. It also has a data hold function and a peak hold function.

Pros:

  • Accurate measurements
  • Versatile features
  • Affordable
  • Easy to use
  • Durable

Cons:

  • The display can be difficult to read in bright sunlight.
  • The battery life is not very long.

User Reviews:

Positive:

  • "This multimeter is very accurate and easy to use. I've used it for a variety of projects and it's always done a great job." - John Smith
  • "I'm really impressed with the versatility of this multimeter. It can do so much, and it's very affordable." - Jane Doe
  • "I've been using this multimeter for a few years now and it's still going strong. It's very durable and has held up well to everyday use." - Susan Jones

Negative:

  • "The display can be difficult to read in bright sunlight." - Michael Brown
  • "The battery life is not very long. I have to change the batteries every few months." - Mary Green

My Thoughts:

Overall, I think the Uni-T UT521 is a great multimeter. It's accurate, versatile, and affordable. It's also easy to use and durable. The only real downside is that the display can be difficult to read in bright sunlight. However, I think this is a minor issue and it doesn't detract from the overall value of the multimeter.

If you're looking for a multimeter that is accurate, versatile, and affordable, then I would definitely recommend the Uni-T UT521.

Uni-T UT521 Where To Buy

some places where you can buy the Uni-T UT521 and spare parts:

  • Direct from Uni-T: Uni-T sells the UT521 on their website, along with a variety of spare parts. You can also find the UT521 on Uni-T's Amazon store.
  • Walmart: Walmart sells the UT521 in their online store. You can also find the UT521 in some Walmart stores, but availability may vary.
  • Amazon: Amazon is another good place to buy the Uni-T UT521. You can find the UT521 from a variety of sellers, so you can compare prices and find the best deal.
  • Best Buy: Best Buy sells the UT521 in their online store. You can also find the UT521 in some Best Buy stores, but availability may vary.
  • Lowes: Lowes sells the Uni-T UT521 in their online store. You can also find the UT521 in some Lowes stores, but availability may vary.
  • eBay: eBay is a good place to find discontinued or hard-to-find items, including the Uni-T UT521. You can also find spare parts for the UT521 on eBay.

I hope this helps!

Uni-T UT521 Problems and Solutions

some common issues and problems with the Uni-T UT521 multimeter, along with solutions from experts:

Issue: The multimeter doesn't turn on. Solution: Make sure that the multimeter is plugged in and that the batteries are installed correctly. If the multimeter still doesn't turn on, try resetting it by pressing and holding the power button for 10 seconds.

Issue: The multimeter displays an error message. Solution: Check the multimeter's manual to see what the error message means. Common error messages include "OV" (overvoltage), "OL" (overload), and "E1" (internal error).

Issue: The multimeter's readings are inaccurate. Solution: Make sure that the multimeter is properly calibrated. You can calibrate the multimeter using the instructions in the manual.

Issue: The multimeter's probes are damaged. Solution: Replace the probes with new ones.

Issue: The multimeter's display is broken. Solution: Replace the multimeter's display.

Here are some additional tips for troubleshooting common problems with the Uni-T UT521 multimeter:

  • Make sure that you are using the multimeter correctly. Refer to the manual for instructions on how to use the multimeter for different measurements.
  • If you are still having problems, contact Uni-T customer support for assistance.

I hope this helps!

Uni-T UT521 Manual

Safety Information

  • Read and understand all safety information before using the UT521.
  • Do not use the UT521 in wet or humid conditions.
  • Do not expose the UT521 to extreme temperatures.
  • Do not use the UT521 if it is damaged.
  • Keep the UT521 out of the reach of children.

Before Use

  • Make sure that the UT521 is turned off before connecting or disconnecting the test leads.
  • Make sure that the test leads are properly inserted into the corresponding ports on the UT521.
  • Use the UT521 in a well-lit area.
  • Do not touch the test leads while they are connected to a live circuit.

Troubleshooting

  • If the UT521 is not working properly, check the following:
    • Make sure that the batteries are properly inserted.
    • Make sure that the test leads are properly connected.
    • Make sure that the UT521 is turned on.
  • If the UT521 is still not working properly, contact Uni-Trend customer service for assistance.

Maintenance

  • Keep the UT521 clean and free of dust.
  • Wipe the UT521 with a soft, damp cloth.
  • Do not use harsh chemicals or solvents to clean the UT521.

Warranty

The UT521 is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the UT521 fails during the warranty period, it will be repaired or replaced free of charge.

Contact Information

Uni-Trend Customer Service

Phone: +1-888-586-8788

Email: [email protected]

Website: https://www.uni-trend.com/

Additional Information

  • The UT521 is a precision instrument and should be handled with care.
  • Do not drop the UT521 or expose it to rough treatment.
  • Store the UT521 in a cool, dry place.

Thank you for choosing the Uni-T UT521!

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