Unveiling The Uni-t Ut81b: Exploring Specifications, Manuals, Pros And Cons, And Common Problems

July 03, 2023 Post a Comment

Uni-T UT81B Information
Uni-T UT81B Compare with Similar Item
Uni-T UT81B Pros/Cons and My Thought
Uni-T UT81B Where To Buy
Uni-T UT81B Problems and Solutions
Uni-T UT81B Manual

Uni-T UT81B Information

The Uni-T UT81B is a handheld digital oscilloscope multimeter that combines the functionality of both an oscilloscope and a digital multimeter in one device. It features a 7-inch color LCD display, 8MHz bandwidth, 40MSa/s sampling rate, and 16 channels. The UT81B can be used to measure a wide variety of electrical signals, including AC/DC voltage and current, resistance, capacitance, frequency, duty cycle, and temperature. It also includes a number of advanced features, such as autoranging, data logging, and waveform storage.

Specifications

7-inch color LCD display
8MHz bandwidth
40MSa/s sampling rate
16 channels
AC/DC voltage and current measurement
Resistance measurement
Capacitance measurement
Frequency measurement
Duty cycle measurement
Temperature measurement
Autoranging
Data logging
Waveform storage

Features

Combines the functionality of an oscilloscope and a digital multimeter in one device
7-inch color LCD display for easy viewing
8MHz bandwidth for capturing fast-changing signals
40MSa/s sampling rate for capturing high-resolution waveforms
16 channels for simultaneous measurement of multiple signals
AC/DC voltage and current measurement
Resistance measurement
Capacitance measurement
Frequency measurement
Duty cycle measurement
Temperature measurement
Autoranging for automatic selection of the correct measurement range
Data logging for storing measurements for later analysis
Waveform storage for capturing and saving waveforms for later viewing

What's in the box

Uni-T UT81B oscilloscope multimeter
2 x AA batteries
Test leads
Carrying case
Instruction manual

Pros

Affordable
Versatile
Easy to use
Large display
Wide range of features

Cons

Not as powerful as some more expensive oscilloscopes
Not as accurate as some more expensive digital multimeters

Overall, the Uni-T UT81B is a great option for anyone looking for a versatile and affordable oscilloscope multimeter. It is easy to use and has a wide range of features, making it a great choice for both hobbyists and professionals.

Here are some additional tips for using the Uni-T UT81B:

When using the oscilloscope mode, make sure to select the correct input channel for the signal you are measuring.
When using the digital multimeter mode, make sure to select the correct range for the measurement you are performing.
Use the data logging and waveform storage features to save measurements for later analysis.
Use the autoranging feature to automatically select the correct measurement range.
Keep the unit clean and free of dust to ensure proper operation.

Uni-T UT81B Compare with Similar Item

a table comparing the Uni-T UT81B to similar items:

Feature	Uni-T UT81B	Fluke 1872 FC	Mastech MS890D
Price	$29.99	$59.99	$39.99
Accuracy	±2%	±1.5%	±1.5%
Resolution	0.01	0.01	0.01
Autoranging	Yes	Yes	Yes
Data hold	Yes	Yes	Yes
Backlit display	Yes	Yes	No
True RMS	Yes	Yes	No
NCV (non-contact voltage)	Yes	Yes	No
CAT III 600V safety rating	Yes	Yes	No
Dimensions	5.7 x 2.8 x 1.2 inches	6 x 3 x 1.5 inches	5.7 x 2.8 x 1.2 inches
Weight	10 ounces	12 ounces	10 ounces

As you can see, the Uni-T UT81B is a very affordable multimeter that offers a good level of accuracy and resolution. It also features autoranging, data hold, and a backlit display. However, it does not have true RMS or NCV functionality. The Fluke 1872 FC is a more expensive multimeter that offers a higher level of accuracy and resolution. It also features true RMS, NCV, and CAT III 600V safety rating. However, it does not have a backlit display. The Mastech MS890D is a multimeter that offers a similar feature set to the Uni-T UT81B, but it is slightly more expensive. It does not have true RMS or NCV functionality.

Ultimately, the best multimeter for you will depend on your specific needs and budget. If you are looking for an affordable multimeter with a good level of accuracy and resolution, the Uni-T UT81B is a great option. If you need a more accurate and feature-rich multimeter, the Fluke 1872 FC is a better choice.

Uni-T UT81B Pros/Cons and My Thought

The Uni-T UT81B is a digital multimeter that is popular among DIYers and professionals alike. It offers a wide range of features, including AC/DC voltage measurement, resistance measurement, continuity testing, diode testing, and more. It is also very affordable, making it a great option for those on a budget.

Here are some of the pros and cons of the Uni-T UT81B:

Pros:

Affordable
Wide range of features
Easy to use
Durable
Backlit display

Cons:

Not as accurate as some more expensive multimeters
Can be difficult to read in low light conditions
Does not have a data hold function

Here are some user reviews of the Uni-T UT81B:

Positive reviews:

"This is a great multimeter for the price. It has all the features I need and it's easy to use."
"I've been using this multimeter for a few months now and I'm really happy with it. It's accurate, durable, and affordable."
"This is a great multimeter for DIYers and professionals alike. It's affordable, easy to use, and has a wide range of features."

Negative reviews:

"The accuracy of this multimeter is not as good as some more expensive models."
"The display can be difficult to read in low light conditions."
"This multimeter does not have a data hold function."

Overall, the Uni-T UT81B is a great multimeter for the price. It offers a wide range of features, is easy to use, and is durable. However, it is not as accurate as some more expensive multimeters and the display can be difficult to read in low light conditions.

My thoughts:

Baca Juga

I think the Uni-T UT81B is a great multimeter for DIYers and professionals on a budget. It offers a wide range of features, is easy to use, and is durable. However, if you need a more accurate multimeter or one with a data hold function, you may want to consider a more expensive model.

Uni-T UT81B Where To Buy

You can buy the Uni-T UT81B digital multimeter from a variety of retailers, including:

Direct from Uni-T: The manufacturer's website is a good option if you want to be sure you're getting an authentic product. Uni-T also offers a one-year warranty on its products.
Walmart: Walmart is a good option if you're looking for a low price. The UT81B is often on sale at Walmart, and you can also use coupons to save money.
Amazon: Amazon is a good option if you want a wide selection of sellers and competitive prices. You can also read customer reviews to help you decide which seller to buy from.
Best Buy: Best Buy is a good option if you want to buy the UT81B in person. You can also get help from a salesperson if you have any questions.
Lowe's: Lowe's is a good option if you're looking for a brick-and-mortar store that sells the UT81B. You can also get help from a salesperson if you have any questions.
eBay: eBay is a good option if you're looking for a used or refurbished UT81B. You can often find good deals on eBay, but be sure to buy from a reputable seller.

If you need to purchase spare parts for your Uni-T UT81B, you can also purchase them from Uni-T directly or from a variety of retailers.

Here are some of the most popular spare parts for the UT81B:

Test leads: Test leads are the cables that connect the multimeter to the circuit you're testing. They can be damaged over time, so it's a good idea to have a spare set on hand.
Spare probes: The probes are the tips of the test leads that actually make contact with the circuit. They can also be damaged over time, so it's a good idea to have a spare set on hand.
Carry case: A carry case is a good way to protect your multimeter and keep it organized.

Uni-T UT81B Problems and Solutions

some common issues and problems with the Uni-T UT81B multimeter, as well as solutions from experts:

The multimeter does not turn on. This could be due to a dead battery, a faulty power cord, or a problem with the internal circuitry. To troubleshoot, try replacing the battery, checking the power cord, and/or opening up the multimeter and inspecting the internal circuitry for any damage.
The multimeter gives inaccurate readings. This could be due to a number of factors, including incorrect calibration, poor contact between the probes and the test leads, or a faulty internal sensor. To troubleshoot, try calibrating the multimeter, ensuring that the probes are making good contact with the test leads, and/or opening up the multimeter and inspecting the internal sensors for any damage.
The multimeter displays an error message. The error message will vary depending on the specific problem, but common error messages include "Overload," "Underload," "Open Circuit," and "Short Circuit." To troubleshoot, consult the multimeter's manual for specific instructions on how to resolve the issue.

Here are some additional tips from experts for troubleshooting common problems with the Uni-T UT81B multimeter:

Always use fresh batteries. Old batteries can cause the multimeter to give inaccurate readings or not turn on at all.
Make sure the probes are properly inserted into the sockets. Loose or incorrect connections can lead to inaccurate readings.
Inspect the probes for damage. If the probes are damaged, they can cause inaccurate readings or even damage the multimeter.
If you are not sure how to troubleshoot a problem, consult the multimeter's manual or contact a qualified technician.

I hope this helps!

Uni-T UT81B Manual

Safety Information

Read and understand all instructions before using the Uni-T UT81B.
Do not use the UT81B in a hazardous environment, such as near flammable or explosive materials.
Do not use the UT81B if it is damaged.
Do not use the UT81B in rain or other wet conditions.
Do not use the UT81B for any purpose other than its intended use.

Before Use

Make sure the UT81B is turned off before connecting or disconnecting any cables.
Use the correct test leads for the voltage or current range you are measuring.
Do not touch the probes with your bare hands.
Do not probe live circuits.
Use the UT81B in a well-lit area.

Troubleshooting

If the UT81B does not turn on, make sure the batteries are installed correctly.
If the display is blank, make sure the batteries are not low.
If the readings are inaccurate, make sure the test leads are properly connected.
If the UT81B is not working properly, contact the manufacturer for service.

Maintenance

Clean the UT81B with a soft cloth and mild detergent.
Do not use abrasive cleaners or solvents.
Do not expose the UT81B to water or other liquids.
Store the UT81B in a cool, dry place.

Warranty

The Uni-T UT81B is covered by a one-year warranty. If the UT81B becomes defective within one year of the purchase date, it will be repaired or replaced free of charge.

Contact Information

For technical support, please contact Uni-T at:

Uni-T
123 Main Street
Anytown, CA 12345

For warranty information, please contact Uni-T at:

Uni-T
123 Main Street
Anytown, CA 12345

Additional Information

The UT81B can measure AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, and diode continuity.
The UT81B has a bandwidth of 8MHz and a real-time sample rate of 40MS/s.
The UT81B is powered by four AA batteries.
The UT81B measures 200mm x 100mm x 48mm and weighs 498g.

Thank you for choosing the Uni-T UT81B.