Technology is part of our daily work. We use it in simple and more complex forms to make our work more efficient. But the rapid change in technology often leaves us asking whether new technology outdoes older forms. In our case, we may wonder whether digital multimeters are better than analog ones. Analog multimeter vs digital – which is the best choice for you? But even before answering that key question, we may want to understand what multimeters are.
A multimeter, also known as a multitester or volt-ohm-meter (VOM) is a tool used to record electric current or amperage, voltage, and resistance. More complex multimeters can also measure alternating current (AC), direct current (DC), capacity (Farads), Frequency (Hz), and conductance (Siemens) among others.
Multimeters are handy in several fields where electricians perform tasks that range from simple tests for battery voltage, to making out faults in complex electrical appliances, and troubleshooting motor engines and complex wiring systems.
Multimeters can be found in both analog and digital versions. Each of these has strengths and drawbacks which can be used to decide whether it is best to acquire analog multimeters vs digital ones.
An analog multimeter uses a microammeter to measure amperage. When differentiating analog multimeters vs digital versions, the core differentiating characteristic is that the analog VOM displays a needle pointer to indicate the current, resistance or voltage value while a digital version simply displays a number on the multitester screen. The needle on an analog multimeter moves on a graduated scale to show amperage.
Analog multimeters have several strengths:
- They are less expensive when compared to their digital counterparts.
- Because values are displayed on a graduated scale, analog multimeters are best for detecting slow voltage changes by observing the gradual movement of the pointer.
- When set as ammeters to measure electric current in amperes, analog multimeters are a preferred option because of their high sensitivity and low resistance, indicating scales as low as 50 microamperes (50