Multimeter resistance symbol (Manual and photos)

A multimeter is a necessary item for checking electrical equipment. It is vital to know the Om symbol in order to use it correctly. Electrical people know how to read multimeters and their symbols, but the average Joe/Jane might need some help, which is why we're here.

There are several tips and factors for reading parameters such as ohms, capacitance, volts and milliamps, and anyone can master the meter reading.

To read the resistance symbol of a multimeter, you need to have a basic understanding of voltage, resistance and continuity of reading; idea about diode and capacitance test, manual and auto range, and connectors and buttons.

Multimeter symbols you need to know

Here we will discuss voltage, resistance and continuity.

• Voltage helps measure direct current (DC) voltage and alternating current (AC) voltage. The wavy line above the V indicates AC voltage. The dotted and solid line V denotes DC voltage. mV with one dotted and one wavy line means millivolts AC or DC.
• Current can be AC ​​or DC and is measured in amperes. The wavy line represents AC. A with one dotted line and one solid line indicates DC.(1)
• A multimeter is also used to test for an open circuit in an electrical circuit. There are two resistance measurement results. In one, the circuit remains open and the meter shows infinite resistance. The other reads closed, in which the circuit reads zero and closes. In some cases, the meter will beep after detecting continuity.(2)

Diode and capacitance tests

The diode test function tells us whether the diode is working or not. A diode is an electrical component that helps convert AC to DC. The capacitance test includes capacitors, which are charge storage devices, and a meter that measures the charge. Each multimeter has two wires and four types of connectors that you can connect wires to. Four connectors include COM connector, A connector, mAOm Jack, and mAmkA connector.

Manual and auto range

Two types of multimeters can be used. One is an analog multimeter and the other is a digital multimeter. The analog multimeter includes multiple range settings and has a pointer inside. It cannot be used to measure sensitive measurements as the pointer will not deviate over a large range. The pointer will deflect to its maximum at a short distance and the measurement will not exceed the range.

The DMM has a number of settings that can be selected using the dial. The meter automatically selects the range as it has no range settings. Automatic multimeters perform much better than manual range multimeters.

Recommendations

(1) Ohm's Law - https://electronics.koncon.nl/ohmslaw/

(2) Multimeter information - https://www.electrical4u.com/voltage-or-electric-potential-difference/