This is a function to check whether the wires are connected. The output value is slightly different for each transistor. hFE is also known as the 'current amplification factor.' When the transistor's three terminals are inserted, a number between about 50 and 200 is output. Browse a variety of top brands in Multimeters such as Milwaukee, Sperry Instruments, and Gardner Bender. When the base current is '1', it tells how many times the collector current is amplified. Shop 6 Multimeters at Northern Tool + Equipment. The 'hFE' of a transistor is the collector (C) current ratio to the base (B) current. Some high-end multimeters have a protection circuit. At this time, be careful because measuring the voltage of the battery or the like may cause overcurrent to flow and damage the multimeter. This is because the multimeter must not interfere with the flow of current. During the current measurement, the resistance inside the multimeter becomes almost '0'. If you’re into electronics, having a DMM. However, an amp clamp multimeter somewhat thwarts this generalization in that they may also come with pretty good accuracy specs on voltage and resistance. There is one thing to be aware of when measuring current. The main clamp meter vs multimeter difference is that they can measure high current, while multimeters have higher accuracy and better resolution. Some devices measure without cutting the wire. Therefore, to measure the current, you must cut the wire to be measured. Since DC voltage (DCV) and AC voltage (ACV) have different measurement mechanisms, it is necessary to turn the rotary switch well.Ĭurrent is a physical quantity different from voltage and refers to the amount of electric charge flowing through the wire per hour. For example, if you measure a 10Ω resistance, it is appropriate to put the rotary switch range at 200. Therefore, it is better to choose a range slightly larger than the expected resistance value. Conversely, infinity (a '1' in the left corner) is displayed when the multimeter's measuring range is exceeded. For example, if you measure a small value resistance in a large range, the measurement result will be '0'. When measuring resistance, pay attention to the range. The resistance value is measured by touching the lead wire to the resistance. The resistance can be measured by turning the rotary switch to the 'Ω' zone. VΩmA : You can measure voltage, resistance, and current in milliamps(mA).Ω : Used to measure voltage and resistance.10A : It is used to measure the current in the range of 0 to 10A.COM : It means a common ground terminal.The lead wire's red color represents the (+) pole, and the black color represents the (-) pole. The terminals are where you connect the lead wires for measurement. Most multimeters currently in use are digital. Analog multimeters were used a lot in the past, with a moving needle pointing to the scale, but now they are rarely used.

Multimeters are classified into analog and digital multimeters according to how they operate. A multimeter is a measuring device that combines various measurement functions such as voltage, current, and resistance.

Multi meeter