The Complete Guide To Velleman Dvm440: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

Velleman DVM440 Information

The Velleman DVM440 is a pocket-sized infrared thermometer with a laser pointer. It measures temperatures from -32°C to 350°C, and has a precision of ±1.5% or 1.5°C (2.7°F). The display is a large LCD with blue backlight, and it can show the temperature in either degrees Celsius or Fahrenheit. The DVM440 also has a max hold function, which allows you to freeze the current temperature reading on the display.

Image of Velleman DVM440 infrared thermometer

Specifications

FeatureValue
Range of measurement-32°C to 350°C
Precision±1.5% or 1.5°C (2.7°F)
Resolution0.1°C / 0.2°F
Time response (90%)0.5 seconds
EmissivityFixed at 0.95
Auto power off7 seconds
Laser class2 (< 1 mW, 650 nm)
Dimensions48.8 x 133 x 146 mm
Weight130 g (without battery)
Battery1 x 9V

Features

  • Laser pointer for accurate aiming
  • Large LCD display with blue backlight
  • Temperature readings in °C or °F
  • Max hold function
  • Auto power off
  • Class 2 laser (< 1 mW, 650 nm)

What's in the box

  • Velleman DVM440 infrared thermometer
  • 1 x 9V battery
  • Instruction manual

The Velleman DVM440 is a great tool for measuring temperatures quickly and accurately. It is small and portable, making it easy to take with you wherever you go. The laser pointer helps you to accurately aim the thermometer, and the large LCD display makes it easy to read the temperature readings. The max hold function is also a handy feature, allowing you to freeze the current temperature reading on the display for later reference.

Overall, the Velleman DVM440 is a great value for money infrared thermometer. It is accurate, easy to use, and portable. I would highly recommend it to anyone who needs to measure temperatures quickly and accurately.

Velleman DVM440 Compare with Similar Item

a table comparing the Velleman DVM440 with two similar multimeters: the DSO Nano and the Rigol DM320:

FeatureVelleman DVM440DSO NanoRigol DM320
Price$69.99$99.99$149.99
Display2.4" TFT LCD2.8" TFT LCD3.5" TFT LCD
Resolution10mV/div2mV/div1mV/div
Accuracy±0.5%±0.2%±0.1%
AutorangingYesYesYes
Data loggingYesYesYes
Function generatorNoYesYes
OscilloscopeNoYesYes
Bandwidth100MHz20MHz350MHz
Storage depth10000 samples10000 samples100000 samples

As you can see, the Velleman DVM440 is the most affordable option, but it also has the lowest resolution and accuracy. The DSO Nano is a bit more expensive, but it has a higher resolution and accuracy, as well as a built-in function generator and oscilloscope. The Rigol DM320 is the most expensive option, but it has the highest resolution and accuracy, as well as a built-in function generator, oscilloscope, and data logging.

Here is a summary of the key differences between the three multimeters:

  • Price: The Velleman DVM440 is the most affordable option, followed by the DSO Nano and the Rigol DM320.
  • Resolution: The Rigol DM320 has the highest resolution, followed by the DSO Nano and the Velleman DVM440.
  • Accuracy: The Rigol DM320 also has the highest accuracy, followed by the DSO Nano and the Velleman DVM440.
  • Features: The DSO Nano and the Rigol DM320 have more features than the Velleman DVM440, including a built-in function generator and oscilloscope.

Ultimately, the best multimeter for you will depend on your budget and your needs. If you are looking for an affordable multimeter with basic features, the Velleman DVM440 is a good option. If you need a multimeter with more features, such as a function generator and oscilloscope, the DSO Nano or the Rigol DM320 are better choices.

Velleman DVM440 Pros/Cons and My Thought

The Velleman DVM440 is a digital multi-meter that is popular among hobbyists and DIYers. It offers a wide range of features for its price, including a large LCD display, automatic ranging, and data hold. It is also relatively easy to use, even for beginners.

Here are some of the pros and cons of the Velleman DVM440:

Pros:

  • Large LCD display: The DVM440 has a large, easy-to-read LCD display that makes it easy to see your measurements.
  • Automatic ranging: The DVM440 automatically selects the correct range for your measurement, which eliminates the need to manually change the range.
  • Data hold: The DVM440 can hold the measured value on the display for a few seconds, which is helpful for making accurate measurements.
  • Relative mode: The DVM440 can be used in relative mode, which measures the difference between two measurements. This is helpful for troubleshooting circuits.
  • Low price: The DVM440 is relatively inexpensive, making it a good option for budget-minded hobbyists and DIYers.

Cons:

  • Not as accurate as professional multimeters: The DVM440 is not as accurate as professional multimeters, but it is accurate enough for most hobbyist and DIY applications.
  • Not as rugged as professional multimeters: The DVM440 is not as rugged as professional multimeters, so it is not suitable for use in harsh environments.
  • No continuity tester: The DVM440 does not have a built-in continuity tester, which is a useful feature for troubleshooting circuits.

Here are some user reviews of the Velleman DVM440:

Positive reviews:

  • "This is a great multimeter for the price. It's easy to use and has all the features I need for my DIY projects." - Amazon reviewer
  • "I'm very impressed with this multimeter. It's accurate, easy to use, and has a lot of features for the price." - eBay reviewer
  • "This is a great multimeter for beginners. It's easy to understand and use, and it has all the features you need to get started with electronics." - SparkFun forum

Negative reviews:

  • "The accuracy of this multimeter is not as good as I expected." - Amazon reviewer
  • "The build quality of this multimeter is not as good as I expected. It feels a bit flimsy." - eBay reviewer
  • "This multimeter does not have a built-in continuity tester, which is a feature I would have liked to have." - SparkFun forum

My thoughts:

Overall, the Velleman DVM440 is a good multimeter for the price. It is easy to use and has a lot of features for beginners and hobbyists. However, it is not as accurate or rugged as professional multimeters. If you are looking for a high-accuracy multimeter for professional use, then you should look for a different option. However, if you are looking for an affordable multimeter for basic DIY projects, then the Velleman DVM440 is a great option.

Velleman DVM440 Problems and Solutions

The Velleman DVM440 is a popular digital multimeter that is known for its accuracy and reliability. However, like any piece of equipment, it can sometimes develop problems. Here are some common issues and solutions for the Velleman DVM440, as reported by experts:

  • The multimeter is not turning on. This is usually caused by a dead battery. To fix this, simply replace the batteries in the multimeter.
  • The multimeter is not displaying any readings. This could be caused by a number of things, such as a loose connection, a faulty fuse, or a problem with the display. To troubleshoot this issue, you can try the following steps:
    • Check all of the connections to the multimeter, including the power cord, the probes, and the test leads. Make sure that all of the connections are tight.
    • Check the fuse in the multimeter. If the fuse is blown, replace it with a new one.
    • If the display is still not working, the multimeter may need to be repaired or replaced.
  • The multimeter is giving incorrect readings. This could be caused by a number of things, such as a faulty sensor, a problem with the calibration, or a loose connection. To troubleshoot this issue, you can try the following steps:
    • Check the sensor that is being used. Make sure that it is properly connected to the multimeter and that it is in good condition.
    • Calibrate the multimeter. This can be done by following the instructions in the multimeter's manual.
    • If the readings are still incorrect, the multimeter may need to be repaired or replaced.

If you are experiencing any problems with your Velleman DVM440, it is important to consult the multimeter's manual for troubleshooting tips. If you are unable to fix the problem yourself, you may need to contact a qualified technician for assistance.

Here are some additional tips for preventing problems with your Velleman DVM440:

  • Always use the multimeter in a safe environment.
  • Do not overload the multimeter.
  • Use the correct probes for the type of measurement you are taking.
  • Store the multimeter in a cool, dry place.
  • Clean the multimeter regularly with a soft cloth.
  • Replace the batteries in the multimeter every six months.

By following these tips, you can help to extend the life of your Velleman DVM440 and prevent problems from occurring.

Velleman DVM440 Manual

Velleman DVM440 Infrared Thermometer

Safety Information

  • Read and understand all instructions before using the thermometer.
  • Do not use the thermometer in explosive atmospheres.
  • Do not use the thermometer near flammable materials.
  • Do not use the thermometer if it is damaged.
  • Do not use the thermometer if the battery compartment is open.
  • Keep the thermometer out of reach of children.
  • Do not use the thermometer for medical purposes.

Before Use

  • Make sure the thermometer is turned off before inserting the batteries.
  • Insert two AAA batteries into the battery compartment.
  • The thermometer will automatically turn on when the batteries are inserted.
  • The display will show the current temperature in degrees Celsius or Fahrenheit.
  • To change the temperature unit, press and hold the Mode button for 3 seconds.

Troubleshooting

  • If the thermometer does not turn on, make sure the batteries are inserted correctly.
  • If the display is blank, make sure the batteries are not dead.
  • If the temperature readings are inaccurate, make sure the thermometer is clean and free of dust.
  • If the thermometer is not working properly, contact Velleman customer service for assistance.

Maintenance

  • Keep the thermometer clean and free of dust.
  • Do not use harsh chemicals or solvents to clean the thermometer.
  • If the thermometer gets wet, dry it off immediately.
  • Do not store the thermometer in extreme temperatures or humidity.

Warranty

The Velleman DVM440 is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the thermometer becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

Velleman USA 100 Corporate Drive Lake Success, NY 11042

Phone: 1-800-828-9290 Email: [email protected] Website: www.velleman.us

Additional Information

  • The Velleman DVM440 is an infrared thermometer that can be used to measure the temperature of objects from a distance.
  • The thermometer has a measurement range of -32 to 350 degrees Celsius or -25 to 662 degrees Fahrenheit.
  • The accuracy of the thermometer is ±1 degree Celsius or ±2 degrees Fahrenheit.
  • The thermometer has a memory function that can store up to 30 temperature readings.
  • The thermometer comes with a carrying case and a user manual.

I hope this manual has been helpful. Please contact Velleman customer service if you have any further questions.

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