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Radio Shack 22-218 owner manual Maintenance

Models: 22-218

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MAINTENANCE

MAINTENANCE

Your Radio Shack 8-Range Multitester is an example of supe- rior design and craftsmanship. The following suggestions will help you care for the meter so you can enjoy it for years.

•Keep the meter dry. If it gets wet, wipe it dry immediately. Liquids might contain minerals that can corrode the elec- tronic circuits.

•Use and store the meter only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, damage batteries, and distort or melt plastic parts.

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Radio Shack 22-218 owner manual Maintenance

Contents

Cat. No Please read before using this equipment8-RangeMultitester FEATURES Cautions A WORD ABOUT SAFETY Page Page Page Ranges SPECIFICATIONSAccuracy Dimensions WeightSensitivity 2000 ohm/VoltSPECIAL PANEL MARKINGS Page WARNINGS INSTALLING A BATTERY3. Remove the back of the meter Follow these steps to install the battery5.Replace the back and secure it with the screw Your meter is protected by a 315 mA fuse REPLACING THE FUSEWARNINGS Follow these steps to replace the fuse 4.Replace the blown fuse with a new one 3.Remove the back of the meter5.Replace the back and secure it with the screw Cautions OPERATIONWarnings MAKING ACCURATE MEASUREMENTS Page MEASURING VOLTAGE Zero AdjustmentMeasuring High Voltages Page Measuring DC Voltage 2.Connect the test probes to the circuit Follow these steps to measure DC voltage3.Read the voltage on the scale Measuring AC Voltage 2.Connect the test probes to the circuit Follow these steps to measure AC voltage3.Read the voltage on the scale Measuring 3-PhaseAC Voltage 600volts, the line-to-linevoltage would be 600 Volts x 1.732 = 1039.2 Volts Measuring AC Voltage on a DC Source Bias 1. Set the function selector to 150 mA DC MEASURING DC CURRENTPage WARNINGS MEASURING RESISTANCEPage Page MAINTENANCE Page Page We Service What We Sell RADIO SHACK A Division of Tandy Corporation