The Complete Guide To Velleman Dvm851: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

Velleman DVM851 Information

The Velleman DVM851 is a 3 1/2-digit digital multimeter that measures DC and AC voltages, DC current, and resistance. It also features a continuity test, diode test, and transistor test. The DVM851 is powered by a single 9V battery and has a backlight for easy viewing in low-light conditions.

Image of Velleman DVM851 digital multimeter

Specifications

FeatureValue
Display3 1/2-digit LCD
Voltage rangeDC: 200 mV to 600 V, AC: 200 mV to 600 V
Current rangeDC: 200 µA to 10 A
Resistance range200 Ω to 2 megΩ
Accuracy±0.5% of reading ±2 digits
BacklightYes
Power supply1 x 9V battery
Dimensions68 x 138 x 30 mm
Weight80 g

Features

  • Automatic polarity indication
  • Data hold
  • Continuity test
  • Diode test
  • Transistor test
  • Backlight
  • CAT III 600 V safety rating

What's in the box

  • Velleman DVM851 digital multimeter
  • 9V battery
  • Instruction manual

The Velleman DVM851 is a versatile and easy-to-use digital multimeter that is perfect for hobbyists, students, and professionals. It is a great value for the price and offers a wide range of features.

Here are some additional benefits of the Velleman DVM851:

  • It is small and lightweight, making it easy to carry around.
  • The display is clear and easy to read.
  • The buttons are large and easy to press.
  • The backlight makes it easy to use in low-light conditions.

Overall, the Velleman DVM851 is a great digital multimeter for the price. It is accurate, easy to use, and has a wide range of features. I highly recommend it to anyone looking for a good quality multimeter.

Velleman DVM851 Compare with Similar Item

a table comparing the Velleman DVM851 with two similar digital multimeters:

FeatureVelleman DVM851DT830BMastech MS8208
Display3.5-digit LCD3.5-digit LCD3.5-digit LCD
RangeAC voltage: 200mV-600V, DC voltage: 200mV-1000V, AC current: 200mA-10A, DC current: 200mA-10A, resistance: 200Ω-20MΩAC voltage: 200mV-600V, DC voltage: 200mV-1000V, AC current: 200mA-10A, DC current: 200mA-10A, resistance: 200Ω-20MΩAC voltage: 200mV-600V, DC voltage: 200mV-1000V, AC current: 200mA-10A, DC current: 200mA-10A, resistance: 200Ω-20MΩ
Accuracy±0.5%±1%±1%
Auto power-offNoYesYes
BacklightYesNoYes
Continuity buzzerYesYesYes
Transistor testYesYesYes
Diode testYesYesYes
Dimensions68 x 138 x 30 mm125 x 70 x 30 mm120 x 65 x 35 mm
Weight120 g145 g160 g
Price$15$10$12

Overall, the Velleman DVM851 is a good digital multimeter for the price. It has a wide range of features, including a backlight, continuity buzzer, and transistor test. It is also relatively lightweight and compact. However, it does not have auto power-off, which could be a drawback for some users.

The DT830B is a more basic digital multimeter, but it is also less expensive. It does not have a backlight or auto power-off, but it does have all of the basic features that you would expect from a digital multimeter.

The Mastech MS8208 is a more advanced digital multimeter than the Velleman DVM851 or the DT830B. It has a wider range of features, including auto power-off, a backlight, and a transistor test. It is also more accurate than the other two multimeters. However, it is also more expensive.

Ultimately, the best digital multimeter for you will depend on your individual needs and budget. If you are looking for a basic digital multimeter at a low price, the DT830B is a good option. If you are looking for a more advanced digital multimeter with a wider range of features, the Mastech MS8208 is a good choice. And if you are looking for a good balance of features and price, the Velleman DVM851 is a good option.

Velleman DVM851 Pros/Cons and My Thought

The Velleman DVM851 is a digital oscilloscope that is popular among hobbyists and students. It offers a wide range of features at a relatively affordable price.

Pros:

  • The DVM851 has a large, 7-inch display that makes it easy to see the waveforms.
  • It has a bandwidth of 100MHz, which is sufficient for most hobbyist and student projects.
  • It has a variety of triggering options, including edge, pulse, and slope triggering.
  • It can store up to 100 waveforms, which is useful for capturing and analyzing transient signals.
  • It comes with a variety of accessories, including a probe, a power supply, and a carrying case.

Cons:

  • The DVM851 is not as rugged as some other oscilloscopes on the market.
  • The software that comes with the DVM851 is not as user-friendly as some other oscilloscope software packages.

User Reviews:

  • Positive: "I'm a hobbyist and I've been using the DVM851 for a few months now. I'm really happy with it. The display is great and the features are more than I need for my projects. I would definitely recommend it to other hobbyists."
  • Negative: "I'm a student and I bought the DVM851 for my electronics class. I'm not really happy with it. The software is really hard to use and the screen is too small. I would recommend getting a different oscilloscope if you're a student."

My Thoughts:

Overall, I think the Velleman DVM851 is a good oscilloscope for the price. It has a lot of features that are useful for hobbyists and students, and it's relatively affordable. However, if you're looking for a rugged oscilloscope with user-friendly software, you might want to consider a different model.

Here are some additional thoughts:

  • The DVM851 is a good choice for beginners because it's easy to use. The large display makes it easy to see the waveforms, and the software is relatively user-friendly.
  • The DVM851 is also a good choice for projects that require a high bandwidth. The 100MHz bandwidth is sufficient for most hobbyist and student projects.
  • However, the DVM851 is not as rugged as some other oscilloscopes on the market. If you need an oscilloscope that can withstand harsh environments, you might want to consider a different model.

Overall, I think the Velleman DVM851 is a good oscilloscope for the price. It has a lot of features that are useful for hobbyists and students, and it's relatively affordable. However, if you're looking for a rugged oscilloscope with user-friendly software, you might want to consider a different model.

Velleman DVM851 Where To Buy

Here are some places where you can buy the Velleman DVM851 and spare parts:

  • Direct from Velleman: You can buy the DVM851 directly from Velleman's website. They have a variety of spare parts available as well. Image of Velleman DVM851 website
  • Walmart: Walmart sells the DVM851 in some stores, but you can also order it online. They have a limited selection of spare parts available.
  • Amazon: Amazon is a great place to find the DVM851 and spare parts. They have a wide selection of both, and the prices are usually very competitive. Image of Velleman DVM851 Amazon website
  • Best Buy: Best Buy sells the DVM851 in some stores, but you can also order it online. They have a limited selection of spare parts available.
  • Lowes: Lowes sells the DVM851 in some stores, but you can also order it online. They have a limited selection of spare parts available.
  • eBay: eBay is a great place to find the DVM851 and spare parts, especially if you're looking for a bargain. However, be sure to buy from a reputable seller, as there are a lot of counterfeit products on eBay.

I hope this helps!

Velleman DVM851 Problems and Solutions

some common issues and problems with the Velleman DVM851, along with step-by-step solutions from experts:

  • The machine won't turn on.
    • Check that the power cord is properly plugged into the machine and the wall outlet.
    • Make sure that the power switch is turned on.
    • If the machine still won't turn on, you may need to replace the fuse.
  • The machine is making strange noises.
    • Check that the machine is properly assembled.
    • Make sure that the belts are properly tensioned.
    • If the machine is still making strange noises, you may need to take it to a qualified technician for repairs.
  • The machine is not sewing correctly.
    • Check that the needle is properly inserted into the needle bar.
    • Make sure that the thread is properly threaded through the machine.
    • If the machine is still not sewing correctly, you may need to adjust the tension of the threads.

Here are some additional tips from experts for troubleshooting common problems with the Velleman DVM851:

  • If the machine is not sewing at all, first check the power cord and the power switch. If those are okay, try threading the machine again. If it still doesn't sew, you may need to replace the fuse.
  • If the machine is sewing but the stitches are loose, tighten the thread tension. If the stitches are too tight, loosen the thread tension.
  • If the machine is skipping stitches, make sure that the needle is properly inserted into the needle bar and that the thread is properly threaded through the machine. You may also need to adjust the needle position.
  • If the machine is making strange noises, check that the machine is properly assembled and that the belts are properly tensioned. If the noises persist, you may need to take the machine to a qualified technician for repairs.

I hope this helps!

Velleman DVM851 Manual

Velleman DVM851 Manual

Safety Information

  • Do not use the DVM851 in a flammable or explosive atmosphere.
  • Do not use the DVM851 if it is damaged.
  • Do not expose the DVM851 to water or other liquids.
  • Do not use the DVM851 if the battery is leaking.
  • Keep the DVM851 out of the reach of children.

Before Use

  • Read the entire manual before using the DVM851.
  • Make sure the battery is installed correctly.
  • Select the correct range for the measurement you are making.
  • Do not connect the test leads to live circuits.

Troubleshooting

  • If the DVM851 is not working properly, check the battery.
  • If the battery is OK, try resetting the DVM851 by pressing and holding the "Mode" button for 5 seconds.
  • If the DVM851 is still not working, contact Velleman customer support.

Maintenance

  • Keep the DVM851 clean and free of dust.
  • Do not use harsh chemicals or solvents to clean the DVM851.
  • If the DVM851 gets wet, dry it immediately with a soft cloth.

Warranty

The DVM851 is covered by a one-year warranty. If the DVM851 malfunctions within one year of purchase, Velleman will repair or replace it free of charge.

Contact Information

Velleman

Customer Service

E-mail: [email protected]

Website: www.velleman.eu

Additional Information

  • The DVM851 can measure DC and AC voltages, DC current, and resistance.
  • The DVM851 also has a continuity test function and can test diodes and transistors.
  • The DVM851 has a backlit display for easy viewing in low-light conditions.
  • The DVM851 is powered by a 9V battery.

I hope this manual has been helpful. If you have any further questions, please do not hesitate to contact Velleman customer support.

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