Measuring 3-Phase AC Voltage

This meter is primarily designed to measure household AC voltages and is not intended for commercial or industrial use. If you want to measure 3-phase, line-to-line voltages, please note the following:

Because of the dangers inherent in the measurement of three-phase circuits, we strongly recommend against the use of this meter for such applications.

If you choose to make the measurements, use extreme care. The actual voltage can be greater than the circuit’s rated voltage (line-to-ground).

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Radio Shack 22-218 owner manual Measuring 3-Phase AC Voltage

22-218 specifications

The Radio Shack 22-218 is a versatile and compact multimeter, ideal for both amateur and professional electronics enthusiasts. As a testament to Radio Shack's commitment to providing quality tools, the 22-218 combines a wide range of testing capabilities in a user-friendly package.

One of the standout features of the Radio Shack 22-218 is its ability to measure both AC and DC voltage. This is particularly useful for diagnosing electrical systems in a variety of applications, from household wiring to automotive systems. The device typically offers a maximum voltage range of up to 600 volts, providing ample capacity for most tasks.

In addition to voltage measurement, the 22-218 can also gauge current, making it useful for troubleshooting circuit issues. It supports both AC and DC current measurement, with ranges often extending to 10 amps. This dual functionality allows users to ascertain whether components are drawing the correct amount of current, an essential aspect of ensuring efficiency within any circuit.

Resistance measurement is another critical feature of the Radio Shack 22-218. By utilizing this function, users can test components like resistors, diodes, and even continuity in circuits. The multimeter’s resistance range typically goes up to 20 megaohms, making it suitable for various electronics testing scenarios.

This device also incorporates a diode test function, which is crucial for understanding the integrity of semiconductor devices. Users can evaluate whether diodes are functioning correctly, a common need in electronic repair and development.

The LCD display is designed for clarity and ease of reading. With a backlit option in many models, it ensures that measurements can be taken even in low-light environments, enhancing usability for fieldwork or complex setups.

Constructed for durability, the Radio Shack 22-218 is often housed in a rugged casing that can withstand the rigors of frequent use. Its compact size makes it portable, allowing users to easily carry the multimeter to various job sites.

Battery-operated, the 22-218 offers convenience and portability without being tethered to power outlets. The battery life is generally commendable, ensuring that users can work for extended periods without interruption.

Overall, the Radio Shack 22-218 is a reliable, multi-functional tool that serves a wide range of testing needs. Whether for hobbyists or professionals, its robust features and operational simplicity make it a must-have in any electronics toolkit.