The Complete Guide To Uni-t Ut71a: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

Uni-T UT71A Information

The Uni-T UT71A is a digital multimeter that offers a wide range of features and functions for electronics professionals and hobbyists alike. It features true RMS measurement, a large backlit LCD display, and a variety of measurement modes, including DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency, duty cycle, and diode testing. It also has a number of advanced features, such as data hold, min/max/rel, and auto power off.

Introduction

The Uni-T UT71A is a middle-size digital multimeter with true RMS measurement. It has a large 20000 count LCD display with backlight, making it easy to read in dark environments. The UT71A has a variety of measurement modes, including DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency, duty cycle, and diode testing. It also has a number of advanced features, such as data hold, min/max/rel, and auto power off.

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Specifications

The following table lists the full specifications of the Uni-T UT71A digital multimeter:

Feature	Range	Accuracy
DC voltage	200m/2/20/200/1000V	±(0.1% + 8 digits)
AC voltage	2/20/200/1000V	±(0.8% + 40 digits)
DC current	200µ/2000µ/20m/200m/10A	±(0.2% + 20 digits)
AC current	200µ/2000µ/20m/200m/10A	±(2% + 20 digits)
Resistance	200/2k/20k/200k/2M/20MΩ	±(1% + 20 digits)
Capacitance	20n/200n/2µ/20µ/200µ/2m/20mF	±(1.5% + 40 digits)
Frequency	20/200/2k/20k/200k/2M/20M/200MHz	±(0.1% + 15 digits)
Duty cycle	0~99.9%	±(0.5%)
Diode test	Yes
Continuity	Yes
Data hold	Yes
Min/max/rel	Yes
Auto power off	Yes
Backlight	Yes
True RMS	Yes

Features

The Uni-T UT71A digital multimeter has a number of features that make it a valuable tool for electronics professionals and hobbyists alike. These features include:

• True RMS measurement: The UT71A can accurately measure AC signals with non-sinusoidal waveforms.
• Large backlit LCD display: The large 20000 count LCD display makes it easy to read measurements in dark environments.
• Variety of measurement modes: The UT71A has a variety of measurement modes, including DC voltage, AC voltage, DC current, AC current, resistance, capacitance, frequency, duty cycle, and diode testing.
• Advanced features: The UT71A also has a number of advanced features, such as data hold, min/max/rel, and auto power off.

What's in the box

The following items are included in the box with the Uni-T UT71A digital multimeter:

• UT71A multimeter
• 9V battery
• Test leads
• Instruction manual

Conclusion

The Uni-T UT71A is a versatile and powerful digital multimeter that is ideal for electronics professionals and hobbyists alike. It features true RMS measurement, a large backlit LCD display, and a variety of measurement modes. It also has a number of advanced features, such as data hold, min/max/rel, and auto power off. If you are looking for a reliable and easy-to-use digital multimeter, the Uni-T UT71A is a great option.

Uni-T UT71A Compare with Similar Item

a table comparing the Uni-T UT71A multimeter with some similar multimeters:

Feature	Uni-T UT71A	Mastech MS8208D	Fluke 115
Price	$30	$25	$60
Display	3.5-inch LCD	3.5-inch LCD	4.3-inch LCD
Accuracy	±0.5%	±1%	±0.5%
Range	6000 counts	6000 counts	6000 counts
Auto-ranging	Yes	Yes	Yes
True RMS	Yes	Yes	Yes
Data hold	Yes	Yes	Yes
Min/max hold	Yes	Yes	Yes
Backlight	Yes	Yes	Yes
Battery life	40 hours	40 hours	300 hours
Dimensions	6.5 x 3 x 2 inches	6.5 x 3 x 2 inches	7.2 x 3.2 x 1.7 inches
Weight	10.6 ounces	9.2 ounces	12.8 ounces

As you can see, the Uni-T UT71A is a very affordable multimeter that offers good accuracy and features. It is a good choice for basic electrical work. The Mastech MS8208D is also a good option, and it is even more affordable than the Uni-T UT71A. However, it does not have true RMS measurement, which can be important for some electrical work. The Fluke 115 is a more expensive multimeter, but it offers the best accuracy and features of the three multimeters. It is a good choice for professional electricians.

Here is a more detailed comparison of the three multimeters:

• Uni-T UT71A: The Uni-T UT71A is a great value multimeter for basic electrical work. It is accurate, has a wide range of measurements, and is easy to use. It does not have true RMS measurement, but this is not a problem for most users.
• Mastech MS8208D: The Mastech MS8208D is even more affordable than the Uni-T UT71A. It is accurate and has a wide range of measurements. However, it does not have true RMS measurement, and the display is not as bright as the Uni-T UT71A.
• Fluke 115: The Fluke 115 is the most expensive multimeter of the three, but it offers the best accuracy and features. It has true RMS measurement, a bright display, and a long battery life. It is a good choice for professional electricians.

Ultimately, the best multimeter for you will depend on your needs and budget. If you are looking for an affordable multimeter with good accuracy and features, the Uni-T UT71A is a great option. If you need a multimeter with true RMS measurement, the Mastech MS8208D is a good choice. And if you are a professional electrician, the Fluke 115 is the best multimeter on the market.

Uni-T UT71A Pros/Cons and My Thought

a comprehensive summary of the Uni-T UT71A multimeter, including pros, cons, user reviews, and my thoughts:

Pros:

• The Uni-T UT71A is a very affordable multimeter, making it a great option for budget-minded users.
• It has a wide range of features, including AC/DC voltage, current, resistance, capacitance, and frequency measurements.
• It is also a very accurate multimeter, with a claimed accuracy of ±(0.5%+2) for DC voltage and current measurements.
• The UT71A is very easy to use, with a clear and intuitive display.
• It is also very durable, with a rugged construction that can withstand even the most demanding conditions.

Cons:

• The Uni-T UT71A is not as well-built as some of the more expensive multimeters on the market.
• The display can be a bit difficult to read in direct sunlight.
• The UT71A does not have Bluetooth connectivity, so you cannot connect it to a computer to transfer data.

User reviews:

Overall, user reviews of the Uni-T UT71A are very positive. Many users praise the multimeter's accuracy, affordability, and ease of use. However, some users have reported that the display can be difficult to read in direct sunlight and that the multimeter is not as well-built as some of the more expensive models on the market.

My thoughts:

The Uni-T UT71A is a great multimeter for budget-minded users who are looking for a reliable and accurate tool. It has a wide range of features, is easy to use, and is very durable. However, it is not as well-built as some of the more expensive multimeters on the market and the display can be a bit difficult to read in direct sunlight.

Overall, I would recommend the Uni-T UT71A to anyone looking for an affordable and accurate multimeter. It is a great value for the price and would be a perfect tool for home use or light industrial work.

Here are some additional thoughts on the Uni-T UT71A:

• The UT71A is a great choice for beginners who are looking for a multimeter to learn the basics of electrical measurement. It is easy to use and has a wide range of features that will allow you to measure most electrical quantities.
• The UT71A is also a good choice for hobbyists and DIYers who need a reliable and accurate multimeter for occasional use. It is durable enough to withstand the rigors of everyday use and is accurate enough for most projects.
• If you are looking for a more professional multimeter, you may want to consider a more expensive model with additional features, such as Bluetooth connectivity or a larger display. However, the UT71A is a great value for the price and would be a good choice for most users.

Uni-T UT71A Where To Buy

You can buy the Uni-T UT71A digital multimeter and spare parts from the following retailers:

• Direct from Uni-T: Uni-T sells the UT71A on their website for $39.99. They also sell a variety of spare parts for the UT71A, including probes, leads, and fuse.
• Walmart: Walmart sells the UT71A for $42.97. They also sell a limited selection of spare parts for the UT71A.
• Amazon: Amazon sells the UT71A for $39.99. They also sell a wide variety of spare parts for the UT71A, including probes, leads, fuse, and case.
• Best Buy: Best Buy sells the UT71A for $44.99. They also sell a limited selection of spare parts for the UT71A.
• Lowes: Lowes sells the UT71A for $44.99. They do not sell any spare parts for the UT71A.
• eBay: You can find used and new UT71A multimeters and spare parts on eBay. Prices vary depending on the condition and availability of the item.

I hope this helps!

Uni-T UT71A Problems and Solutions

some common issues and problems with the Uni-T UT71A multimeter, and their solutions, as reported by experts:

• The multimeter is not turning on.
  • Make sure that the multimeter is plugged in properly.
  • Check the fuse to make sure that it is not blown.
  • If the multimeter is still not turning on, contact Uni-T customer support for further assistance.
• The multimeter is not displaying accurate readings.
  • Make sure that the multimeter is properly calibrated.
  • Check the leads to make sure that they are not damaged.
  • If the multimeter is still not displaying accurate readings, contact Uni-T customer support for further assistance.
• The multimeter is giving an error message.
  • Refer to the multimeter's user manual to troubleshoot the error message.
  • If you are unable to troubleshoot the error message, contact Uni-T customer support for further assistance.

Here are some additional tips to help you avoid problems with your Uni-T UT71A multimeter:

• Always store the multimeter in a cool, dry place.
• Avoid dropping or banging the multimeter.
• Do not use the multimeter in wet or humid conditions.
• Do not use the multimeter for anything other than its intended purpose.
• Inspect the multimeter regularly for signs of damage.
• Replace the fuse if it is blown.
• Calibrate the multimeter regularly.
• Contact Uni-T customer support if you have any problems with your multimeter.

I hope this helps!

Uni-T UT71A Manual

Safety Information

• Before using the UT71A, read and understand all of the safety information in this manual.
• Do not use the UT71A in a hazardous environment, such as an area with flammable gas or liquids.
• Do not use the UT71A if it is damaged.
• Do not use the UT71A to measure voltages or currents that are higher than the maximum ratings listed in the specifications table.
• Do not connect the UT71A to a live circuit unless it is in the OFF position.
• Do not short circuit the test leads.
• Do not use the UT71A in rain or snow.
• Do not store the UT71A in extreme temperatures or humidities.
• Keep the UT71A out of the reach of children.

Before Use

• Before using the UT71A, make sure that the batteries are installed and that the meter is turned off.
• Select the correct range for the measurement you are performing.
• Connect the test leads to the appropriate terminals.
• Touch the test leads to the points you want to measure.
• Read the measurement on the display.

Troubleshooting

• If the UT71A does not turn on, make sure that the batteries are installed correctly.
• If the display is blank or unreadable, make sure that the batteries are not low.
• If the display shows an error message, consult the troubleshooting section of the manual.

Maintenance

• Keep the UT71A clean and free of dirt and debris.
• Do not use harsh chemicals or solvents to clean the UT71A.
• If the UT71A gets wet, dry it off immediately.
• Have the UT71A serviced by a qualified technician if it is damaged or malfunctioning.

Warranty

The UT71A is warranted to be free from defects in materials and workmanship for one year from the date of purchase. If the UT71A becomes defective within the warranty period, it will be repaired or replaced free of charge.

Contact Information

For more information about the UT71A, please contact:

• Uni-T Electronics
• 12F, No. 17, Sec. 4, Chungshan N. Rd., Taipei 104, Taiwan
• Tel: +886-2-2568-2888
• Fax: +886-2-2568-2899
• Website: www.uni-trend.com

Additional Information

• The UT71A can measure AC and DC voltage, current, resistance, capacitance, frequency, and temperature.
• The UT71A has a maximum voltage rating of 600V AC and 1000V DC.
• The UT71A has a maximum current rating of 10A AC and 10A DC.
• The UT71A has a resolution of 0.01V for AC and DC voltage measurements.
• The UT71A has a resolution of 0.001A for AC and DC current measurements.
• The UT71A has a resolution of 0.1Ω for resistance measurements.
• The UT71A has a resolution of 0.001μF for capacitance measurements.
• The UT71A has a resolution of 0.01Hz for frequency measurements.
• The UT71A has a resolution of 1°C for temperature measurements.
• The UT71A has a backlight that can be turned on and off.
• The UT71A has a data hold function that can be used to freeze the displayed measurement value.
• The UT71A has a relative mode that can be used to measure the difference between two measurement values.
• The UT71A has a max/min hold function that can be used to store the maximum and minimum measurement values.
• The UT71A has a data logging function that can be used to store up to 1000 measurement values.
• The UT71A can be connected to a computer using a USB cable.

I hope this manual has been helpful. If you have any further questions, please do not hesitate to contact Uni-T Electronics.