What is a multimeter? Why are multimeters necessary?
Multimeters are instruments used to measure multiple electrical properties. Just as you would use a ruler to measure distance, a stopwatch to measure time, or a scale to measure weight, you can use a multimeter to measure different things – all in one – like a multi-tool. This was the idea behind the first multimeter. British Post Office technician Donald Macadie was dissatisfied with the need to carry many separate instruments, so he invented an instrument that could measure amperes, volts, and ohms. The multifunctional meter was then given the name Avometer.
Multimeters mainly measure voltage (volts), current (amps) and resistance (ohms). Some also allow you to measure other properties, such as temperature and capacity. The multimeter is a standard diagnostic instrument for technicians in the electrical/electronics industry.
Analog and digital multimeters: what are the differences?
An analog multimeter consists of a meter with a moving coil and a pointer that indicates the reading on the scale. This multimeter has a scale with bars to indicate the change in reading over time. The analog multimeter can display abrupt variations in the electrical current well, because it has a changing display.
For comparison, a digital multimeter is a device that displays accurate measurement results on an LCD screen. A digital multimeter with auto-range automatically changes the scale display, so that the measuring circuits can use the maximum precision of the A/D converter. Digital multimeters are generally the best multimeters because they are easier to read and give more accurate results. Many experts will opt for a digital multimeter instead of its analog version.
- The measurement results are recorded and stored in memory and synchronized via a PC.
- Resistant to mechanical damage
- Multifunctionality
- The measurement accuracy is high
- Measuring ranges can be selected manually or automatically
On the other hand, it is expensive compared to the analog multimeter and a fluctuating measurement is difficult to read.
Looking for multimeters? What does Elektor have to offer?
A multimeter is an essential tool for detecting faults and defects in electrical systems. Elektor offers multimeters in various sizes, functions and prices – from portable models with wireless Bluetooth transmission to extremely cheap, highly accurate table-top models. There is a solution for every electrical engineer, maker, and electronics enthusiast.
What accessories are available for a multimeter?
Elektor offers a range of accessories for test and measuring tools, including multimeters. Accessories for multimeters include test leads, banana plugs, back probe pins, alligator clips, and test hooks that can further improve quality.
Why should you buy a multimeter from Elektor?
Thousands of electrical engineers, makers and electronics enthusiasts trust Elektor for affordable, high-quality test and measurement equipment, such as multimeters and multimeter accessories. We stock a wide variety of multimeters to meet the different needs of a wide range of customers.