Radio Shack 24 Range Digital Multimeter 22-805 Manual -

Toggles between sub-functions (e.g., switching between DC and AC within a mode).

Ensure the rotary switch points to the correct function before connecting test leads.

Before diving in, it's helpful to note that the RadioShack 22-805 is functionally identical to meters like the Metex ME-11 and Voltcraft ME-11 —an OEM (Original Equipment Manufacturer) product. This means manuals, software, and technical tips for those models are often directly applicable. radio shack 24 range digital multimeter 22-805 manual

If you encounter error messages like "OL" (Overload) on all ranges, this may indicate internal damage; consult the service notes section of the manual.

: Selects the primary parameter you want to test (Volts, Amps, Ohms, Diode, Continuity). Toggles between sub-functions (e

If the display is faint, becomes erratic, or does not appear, replace the 9V battery. Remove the rubber holster (if equipped). Remove the screws on the back cover. Replace with a new 9V battery. Fuse Replacement

Since the original software is outdated, the enthusiast community has created modern alternatives. For Windows, you can often capture the meter's ASCII data stream using a terminal program like PuTTY. For open-source users, the sigrok project offers excellent support for the 22-805. The serial communication parameters are 600 baud, 7 data bits, no parity, and 2 stop bits , with the meter transmitting readings as a continuous ASCII string. This means manuals, software, and technical tips for

Replace the glass fuse (usually 0.2A/250V for the mA jack; the 10A jack is often unfused or has a high-current fuse). 5. Troubleshooting Common Issues Potential Cause No Display Dead Battery / Improper Switch Position Replace 9V Battery / Check Switch No Current Reading Blown Fuse / Wrong Input Jack Replace Fuse / Use 10A Jack Erratic Readings Weak Battery / Poor Test Lead Contact Replace Battery / Clean Test Leads "1" Displayed Overload (Range too low) Increase Range

Beyond the essentials, the 22-805 includes standout features that enhance usability, including a function to freeze readings, an Auto Power Off mode to conserve battery, a Continuity Buzzer for quick cable checks, a dedicated Diode Check function, and a battery-saving Low-Battery Indicator .

The RadioShack 22-805 Go to product viewer dialog for this item.

Remove the small screw securing the battery compartment door using a Phillips screwdriver. Carefully lift off the battery cover. Remove the two depleted LR44 button cell batteries.