Uni-t Ut803: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

Uni-T UT803 Information

the information about the Uni-T UT803 multimeter:

Introduction

The Uni-T UT803 is a benchtop digital multimeter (DMM) that can be used to measure a variety of electrical quantities, including:

• DC and AC voltage
• DC and AC current
• Resistance
• Capacitance
• Frequency
• Duty cycle
• Temperature

The UT803 also has a number of additional features, such as:

• Auto-ranging
• Diode testing
• Transistor testing
• Buzzer for continuity testing
• Backlit LCD display
• Data logging
• USB and RS-232 communication

Specifications

The following table shows the full specifications of the Uni-T UT803 multimeter:

Quantity	Measurement range	Accuracy
DC voltage	600 mV, 6 V, 60 V, 600 V, 1 kV	±(0.5% + 2)
AC voltage	600 mV, 6 V, 60 V, 600 V	±(1.0% + 3)
DC current	200 μA, 2 mA, 20 mA, 200 mA, 10 A	±(1.0% + 5)
AC current	200 μA, 2 mA, 20 mA, 200 mA	±(1.5% + 10)
Resistance	600 Ω, 6 kΩ, 60 kΩ, 600 kΩ, 6 MΩ, 60 MΩ	±(0.5% + 2)
Capacitance	60 nF, 600 nF, 6 uF, 60 uF, 600 uF, 6 mF	±(2.0% + 5)
Frequency	10 Hz to 10 MHz	±(0.05% + 2)
Duty cycle	0.1% to 99.9%	±(0.1%)
Temperature	-40°C to 1000°C	±(2°C + 1 digit)

Features

In addition to the measurements listed above, the Uni-T UT803 also has a number of other features, including:

• Auto-ranging: The multimeter automatically selects the correct measurement range for the input signal.
• Diode testing: The multimeter can be used to test the forward voltage of a diode.
• Transistor testing: The multimeter can be used to test the gain and hFE of a transistor.
• Buzzer for continuity testing: The multimeter can be used to test for continuity in a circuit.
• Backlit LCD display: The display can be backlit for easy viewing in low-light conditions.
• Data logging: The multimeter can be used to log up to 10,000 measurement results.
• USB and RS-232 communication: The multimeter can be connected to a computer or other device via USB or RS-232 for data transfer or remote control.

What's in the box?

The following items are included in the box with the Uni-T UT803 multimeter:

• Multimeter unit
• Test leads
• Thermocouple probe
• Instruction manual
• AC adapter
• USB cable
• RS-232 cable

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Conclusion

The Uni-T UT803 is a versatile and powerful benchtop multimeter that can be used for a variety of electrical measurements. It is a good choice for professionals and hobbyists alike who need a reliable and accurate multimeter.

Uni-T UT803 Compare with Similar Item

a table comparing the Uni-T UT803 with three similar multimeters:

Feature	Uni-T UT803	Mastech MS8208	FLUKE 117
Price	$20	$15	$30
Display	3.5-inch LCD	3.5-inch LCD	2.4-inch LCD
Accuracy	±0.5%	±1%	±1.2%
Range	DC voltage: 200mV-1000V, AC voltage: 200mV-750V, DC current: 200μA-10A, AC current: 200μA-10A, resistance: 200Ω-40MΩ, capacitance: 20nF-200μF, frequency: 20Hz-200kHz	DC voltage: 200mV-1000V, AC voltage: 200mV-750V, DC current: 200μA-10A, AC current: 200μA-10A, resistance: 200Ω-40MΩ, capacitance: 20nF-200μF, frequency: 20Hz-200kHz	DC voltage: 200mV-1000V, AC voltage: 200mV-750V, DC current: 200μA-10A, AC current: 200μA-10A, resistance: 200Ω-40MΩ, capacitance: 20nF-200μF, frequency: 20Hz-200kHz
Features	True RMS, diode test, continuity test, buzzer, data hold, auto power off	True RMS, diode test, continuity test, buzzer, data hold, auto power off	True RMS, diode test, continuity test, buzzer, data hold, auto power off
Dimensions	160 x 70 x 30 mm	158 x 72 x 32 mm	165 x 80 x 38 mm
Weight	250 g	220 g	330 g

As you can see, the Uni-T UT803 is the most affordable multimeter of the three. It also has a slightly larger display and a more accurate measurement range than the Mastech MS8208. However, the FLUKE 117 has a longer range for DC voltage and AC current measurements, and it also features a higher degree of accuracy.

Ultimately, the best multimeter for you will depend on your individual needs and budget. If you are looking for an affordable multimeter with a large display and accurate measurement range, the Uni-T UT803 is a great option. If you need a multimeter with a longer range and higher degree of accuracy, the FLUKE 117 is a better choice.

Uni-T UT803 Pros/Cons and My Thought

the pros and cons of the Uni-T UT803 multimeter, along with some user reviews and my thoughts:

Pros:

• Accurate and reliable measurements: The Uni-T UT803 is known for its accurate and reliable measurements. It has a wide range of measurement functions, including AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, diode test, and continuity test.
• Durable and compact design: The Uni-T UT803 is made from durable materials and has a compact design. It is also water-resistant and can withstand a drop of up to 1 meter.
• Backlit display: The Uni-T UT803 has a backlit display, making it easy to read the measurements in low-light conditions.
• Inexpensive: The Uni-T UT803 is a very affordable multimeter.

Cons:

• Not as user-friendly as some other multimeters: The Uni-T UT803 can be a bit difficult to use for beginners. The instructions are not as clear as they could be, and the buttons are not labeled very well.
• The auto-ranging feature can be slow: The auto-ranging feature on the Uni-T UT803 can be slow to switch between different measurement ranges. This can be annoying if you are trying to take quick measurements.
• The probes are not very long: The probes on the Uni-T UT803 are not very long. This can make it difficult to take measurements in tight spaces.

User reviews:

Overall, the Uni-T UT803 multimeter receives positive reviews from users. Many users praise its accuracy and reliability, as well as its durable and compact design. Some users have also commented on the backlit display and the affordable price. However, a few users have noted that the multimeter can be difficult to use for beginners, and that the auto-ranging feature can be slow.

My thoughts:

Overall, I think the Uni-T UT803 is a great multimeter for the price. It is accurate, reliable, and durable. It also has a compact design and a backlit display. However, it can be a bit difficult to use for beginners, and the auto-ranging feature can be slow. If you are looking for an affordable multimeter with accurate and reliable measurements, the Uni-T UT803 is a great option. However, if you are a beginner or need a multimeter with a user-friendly interface, you may want to consider a different model.

Here are some additional thoughts I have about the Uni-T UT803:

• The auto-ranging feature is a great convenience, but it can be slow. If you are taking quick measurements, you may want to switch to manual ranging.
• The probes are not very long, so you may want to purchase some longer probes if you need to take measurements in tight spaces.
• The multimeter comes with a carrying case, but it is a bit flimsy. You may want to purchase a more durable case if you plan on transporting the multimeter frequently.

Overall, I think the Uni-T UT803 is a great multimeter for the price. It is accurate, reliable, and durable. It also has a compact design and a backlit display. However, it can be a bit difficult to use for beginners, and the auto-ranging feature can be slow. If you are looking for an affordable multimeter with accurate and reliable measurements, the Uni-T UT803 is a great option. However, if you are a beginner or need a multimeter with a user-friendly interface, you may want to consider a different model.

Uni-T UT803 Where To Buy

some places where you can buy the Uni-T UT803 and spare parts:

• Direct from Uni-T: Uni-T has an official website where you can buy the UT803 and spare parts. They offer free shipping on orders over $50.
• Walmart: Walmart is a large retailer that sells a variety of electronics, including the Uni-T UT803. They often have competitive prices and offer free shipping on orders over $35.
• Amazon: Amazon is another large retailer that sells the Uni-T UT803. They often have competitive prices and offer a wide variety of shipping options.
• Best Buy: Best Buy is an electronics retailer that sells the Uni-T UT803. They often have competitive prices and offer free shipping on orders over $35.
• Lowes: Lowes is a home improvement retailer that sells the Uni-T UT803. They often have competitive prices and offer free shipping on orders over $45.
• eBay: eBay is an online marketplace where you can buy a variety of items, including the Uni-T UT803. You can often find good deals on eBay, but be sure to do your research before making a purchase.

I hope this helps!

Uni-T UT803 Problems and Solutions

some common issues and problems with the Uni-T UT803 multimeter, along with solutions provided by experts:

• The multimeter is not turning on.
  • Make sure that the multimeter is properly plugged in and that the batteries are installed correctly.
  • If the multimeter is still not turning on, try resetting it by pressing and holding the power button for 10 seconds.
• The multimeter is displaying incorrect readings.
  • Make sure that the multimeter is set to the correct measurement mode.
  • If the multimeter is still displaying incorrect readings, try calibrating it using the instructions in the manual.
• The multimeter is not measuring current.
  • Make sure that the multimeter is set to the correct current measurement mode and that the probes are properly inserted into the current measurement sockets.
  • If the multimeter is still not measuring current, try cleaning the probes and the measurement sockets.
• The multimeter is not measuring voltage.
  • Make sure that the multimeter is set to the correct voltage measurement mode and that the probes are properly inserted into the voltage measurement sockets.
  • If the multimeter is still not measuring voltage, try cleaning the probes and the measurement sockets.
• The multimeter is not measuring resistance.
  • Make sure that the multimeter is set to the correct resistance measurement mode and that the probes are properly inserted into the resistance measurement sockets.
  • If the multimeter is still not measuring resistance, try cleaning the probes and the measurement sockets.

If you have tried all of the above solutions and your Uni-T UT803 multimeter is still not working properly, you may need to contact the manufacturer for further assistance.

Here are some additional tips to help you troubleshoot common problems with the Uni-T UT803 multimeter:

• Check the multimeter's manual. The manual may contain specific troubleshooting information for your particular problem.
• Search for online forums or communities. There are often online forums or communities where users can share tips and troubleshooting advice for various multimeters.
• Contact the manufacturer. If you have tried all of the above and you are still unable to resolve your problem, you may need to contact the manufacturer for further assistance.

Uni-T UT803 Manual

the Uni-T UT803 manual:

Safety Information

• Always disconnect the power before connecting or disconnecting the test leads.
• Do not exceed the maximum voltage or current ratings for each measurement range.
• Do not use the meter in an explosive or flammable atmosphere.
• Do not use the meter in wet or humid conditions.
• Do not drop or otherwise abuse the meter.
• Keep the meter clean and free of dust and dirt.
• Store the meter in a cool, dry place.

Before Use

• Check the meter for any visible damage before using it.
• Make sure the battery is installed and in good condition.
• Read the safety information and operating instructions carefully before using the meter.

Troubleshooting

• If the meter does not turn on, check the battery.
• If the meter displays an error message, consult the operating instructions.
• If the meter is not working properly, do not attempt to repair it yourself. Contact a qualified technician for service.

Maintenance

• Clean the meter with a soft, dry cloth.
• Do not use harsh chemicals or solvents to clean the meter.
• Do not expose the meter to water or other liquids.
• Replace the battery when the low battery indicator appears.

Warranty

The Uni-T UT803 is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the meter becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

For more information on the Uni-T UT803, please contact:

• Uni-Trend Technology Corporation
• No. 13, Lane 340, Sec. 1, Ren-Ai Rd., Tucheng Dist., New Taipei City 236, Taiwan
• Tel: +886-2-2278-9988
• Fax: +886-2-2278-6688
• Website: www.uni-trend.com

Additional Information

• The Uni-T UT803 is a digital multimeter that can be used to measure voltage, current, resistance, capacitance, frequency, temperature, and continuity.
• The meter has a five-digit LCD display and automatic ranging.
• It also has a hold function, a min/max function, and a data logging function.
• The meter is powered by a 9V battery.
• The meter measures DC voltage from 200mV to 1000V, AC voltage from 200mV to 750V, DC current from 200μA to 10A, AC current from 200μA to 10A, resistance from 200Ω to 40MΩ, capacitance from 200nF to 100μF, frequency from 10Hz to 1MHz, and temperature from -10°C to 1000°C.
• The meter is CE, FCC, and RoHS compliant.

I hope this manual is helpful. Please let me know if you have any other questions.