Radio Shack 24 Range Digital Multimeter 22-805 Manual

Use this for testing household outlets, appliance cords, or any other AC power source.

To measure current up to 20A, the red lead must be moved to the specific high-current (20A) jack .

Do not attempt calibration without a known reference source. The manual warns that improper calibration voids any remaining safety protection. radio shack 24 range digital multimeter 22-805 manual

If the voltage is unknown, select the highest range setting first to avoid overloading the meter.

Simply put:

Touch the probes to the circuit in parallel. The meter will automatically select the best range for the reading.

Radio Shack’s original DOS/Windows 3.1/95/98 software is obsolete and difficult to find, but you can use the following modern, open-source programs: Use this for testing household outlets, appliance cords,

Disclaimer: This guide is for informational purposes. Always exercise caution when working with live circuits above 50V. The author is not affiliated with Radio Shack or its successors.

Thanks to its standard serial protocol, the 22‑805 is supported by several programs that run on modern hardware. This is perhaps the most important section for anyone looking to use the meter today. The manual warns that improper calibration voids any

Use this setting to check for broken wires. Touch the probes together to verify the meter registers a complete path (near 0 ohms). Note: Depending on the specific production run of the 22-805, this model may rely on a visual low-ohm reading rather than an audible buzzer. 4. Measuring DC Current (Amperage)

While it offers 24 manual ranges, it is often grouped with RadioShack's higher-end "pro" series due to its connectivity and high count. Operational Guidelines For safe and accurate use, the RadioShack manual on Internet Archive highlights: Lead Connection: Ensure the black lead is in the jack and the red lead is in the appropriate jack before powering the unit. Circuit Safety: