A multimeter is a very useful tool if you want to deal with electronics. The most common application is to measure voltage, current and resistance, and it is also used as a continuity tester. Some multimeters have even institutions that diodes, transistors and frequencies can be measured.
Batteries can be tested for their usefulness and provide information on whether diodes or transistors to work flawlessly. Especially high-quality instruments have a "true RMS" feature. This allows accurate measurement of non-sinusoidal AC voltages. Analog models have a dial, digital models have a number display.
How to find a suitable multimeter
According to their application and composition are meters divided into several categories:
Class I, CAT
Used for measurements of devices equipped with a built-in batteries or transformer for galvanic isolation. For example: repairs to flashlights, transistor radios, stereos, etc.
Measuring the CAT class II
Used for measurements on devices with a plug connected to the mains. For example: repair of household appliances, power tools, etc.
Measuring the CAT Class III
Used for measurements in the wiring of a building and fixed equipment. For example: transformer substations, power points.
Measuring the CAT class IV
For measurements in the source of low voltage installations.
For example: measurements of the main fuses.
How does it work?
In order to measure voltage with a multimeter, you must first connect the test leads, and then select the appropriate voltage (DC or AC) and the corresponding voltage range. To prevent the built-in backup activate, you must switch from the highest reading until the correct reading. Some meters have an auto-range function, spanned is automatically determined.
How to measure current with a multimeter
To measure electric current you must connect the test leads and the appropriate, current range setting. Setting spanned you should do so based on the most current consumption data from the instrument. Initially set the highest ever measured range and down from there on. Measurements in the stream that are larger than the maximum range of the multimeter will not run. Use a suitable measuring instrument.
The digital multimeter - a real all-rounder
Whether a beginner or a professional model, the digital multimeter is very versatile - not just for commercial purposes. The electronic hobbyist knows the different functions of these universal instruments to appreciate. A digital multimeter can be bought from any good
Electronics Store or from online shopping sites for electronic equipment.
Analog measurement is faster measurement
Despite their move to the edge of the measuring technique, analog
Multimeters used primarily for visualization of the measured values. Important in particular his observations of developments that can be made visible by walking the pointer.
