Radio Shack 22-812 - User Manual

©
2002 RadioShack Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks used by
RadioShack Corporation.
OWNER’S MANUAL
Please read before using this equipment.
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for pertinent information.
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22-812
Logic Function
— you can use the meter to test
HI and LO logic levels.
Multiple Displays
— the supplied software
displays the information you see on your meter’s
display onto your computer’s monitor, updating it
4 times per second.
Automatic Data Logging
— the software works
with your meter and computer to select the
correct sampling rate for your application, then
capture and store data. The software logs the
time for each reading, helping you keep track of
each sample. You can also save logged data in
your hard drive for future reference.
Computer Interface with Supplied Software
—
you can connect the meter to your computer and
use the supplied software to log and graph
measurements.
Auto-Ranging with Manual-Ranging Override
—
automatically selects a range when you measure
voltage, current, resistance, capacitance, and
frequency. You can also manually set the range
when measuring values you know are within a
certain range.
22-812.fm Page 1 Monday, April 8, 2002 1:32 PM

Radio Shack 22-812 Specifications

General

Brand	Radio Shack
Model	22-812
Category	Multimeter
Language	English

Summary

System Requirements and Safety

A Word About Safety

Essential safety precautions and warnings for operating the multimeter.

Specifications

Preparation

Installing a Battery

Step-by-step instructions for installing the required 9V battery.

Connecting the Test Leads

How to properly connect the multimeter's test leads to the correct jacks.

Making Measurements

Measuring DC Voltage

Step-by-step guide for measuring DC voltage using auto or manual ranging.

Displaying Temperature

Measuring AC Voltage

Procedure for measuring AC voltage in dBm or volts.

Measuring DC;AC Current

How to connect the meter in series to measure DC or AC current.

Measuring Resistance

Steps to measure resistance, including safety precautions and range determination.

Measuring Capacitance

Checking Continuity

Checking Diodes

Procedure to test diodes, transistors for opens, shorts, and forward voltage.

Measuring Logic

Measuring Frequency; Duty Cycle;Pulse Width

Measuring AC Voltage Frequency

Measuring AC Current Frequency

Measuring hFE

Using the Meter with a Computer

Installing Software and Hardware

Steps to install the Meter View software and connect the meter to the PC.

Configuring and Using Software

Care and Maintenance

Replacing the Fuses