Cat. No. 22-218
OWNER’S MANUAL
Please read before using this equipment.
8-Range Multitester
FEATURES
Your Radio Shack 8-Range Multitester is a perfect addition to your workshop. It is designed with a precision meter movement to avoid mechanical shock damage. This compact-sized pocket meter accurately measures AC and DC voltages, DC current, and resistance.
It also passes the critical safety test required by Underwriters Laboratories for test equipment, and its 2000 ohm/volt sensitivity ensures an accurate reading.
©1995 Tandy Corporation. All Rights Reserved.
Radio Shack is a registered trademark used by Tandy Corporation.
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Cautions:
•Read this manual completely before you use the meter.
•If you are not familiar with meters and testing procedures, we suggest that you read a book about the subject, such as “Using Your Meter” (Radio Shack Cat. No. 62-2039).
Note: You need one AA battery (not supplied) to power your multitester.
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A WORD ABOUT SAFETY
We have taken every precaution in designing this meter to ensure that it is as safe as possible. But safe operation depends on you, the operator. We recommend that you follow these simple safety rules:
•Never apply voltages to the meter that exceed the limits given in the specifications. Never apply more than 1000V DC or AC between any input terminals, or between an input terminal and ground.
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•Use extreme caution when you work with voltages above 40V. Always disconnect power from the circuit you are measuring before you connect test probes to high-volt- age points.
•Never connect the test probes to a source of voltage when you select the Rx1K W or 150mA DC function.
•Always discharge filter capacitors in the power supply of the circuit under test before you attach test probes.
•Always turn off power and disconnect the test leads before you replace the batteries.
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•Never operate the meter unless the battery cover is in place and fully closed.
•Because many AC/DC sets have a potentially hot chassis, be sure the top of your workbench and the floor underneath it are made of non-conductive materials.
The multitester is fully calibrated and tested. Under normal use, no further adjustment should be necessary. If the meter should require repair, do not try to adjust it yourself. Take it to your nearest Radio Shack store. Service by unauthorized personnel voids the warranty.
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WARNING: USE EXTREME CAUTION IN USE OF THIS DEVICE. IMPROPER USE OF THIS DEVICE CAN RESULT IN INJURY OR DEATH. FOLLOW ALL SAFEGUARDS SUGGESTED IN THE OWNER’S MANUAL IN ADDITION TO NORMAL SAFETY PRECAUTIONS IN DEALING WITH ELECTRICAL CIRCUITS. DO NOT USE THIS DEVICE IF YOU ARE UNFAMILIAR WITH ELECTRICAL CIRCUITS AND TESTING PROCEDURES. NOT FOR COMMERCIAL OR INDUSTRIAL USE.
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SPECIFICATIONS
Ranges |
|
AC Voltage |
................................................ 15V, 150V, 1000V |
DC Voltage |
................................................ 15V, 150V, 1000V |
DC Current |
.................................................................150 mA |
Resistance ............................... |
100K ohm (Center 3.5K ohm) |
Accuracy |
|
DC .............................................................. |
± 3% of Full Scale |
AC ............................................................. |
± 4% of Full Scale |
Resistance ..................................... |
± 3% at Full Scale Length |
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|
Sensitivity |
|
AC Voltage ....................................................... |
2000 ohm/Volt |
DC Voltage ...................................................... |
2000 ohm/Volt |
Operating Temperature......................... |
32–109.4°F (0–43°C) |
Storage Temperature ......................... |
–4–140°F (–20–60°C) |
Power Requirements ................................................. |
1.5 Volts |
Dimensions ........................................ |
37/8 ¥ 2 1/2 ¥ 1 1/4 Inches |
|
(98 ¥ 64 ¥ 32 mm) (HWD) |
Weight................................................. |
Approx. 3.7 oz. (105 g) |
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SPECIAL PANEL MARKINGS
We have added special markings to the panel to remind you of the meter’s measurement limitations and important safety precautions.
500V MAX
Follow the operating instructions given in this owner’s manual.
To avoid electric shock or damage to the meter, do not connect the ground terminal to any source of more than 500 volts with respect to earth ground.
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Be extra careful when you take measurements for high voltage. Do not touch the meter’s test probe ends.
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INSTALLING A BATTERY
Your meter uses one AA battery for power. We recommend an alkaline battery, such as Radio Shack Cat. No. 23-552/557.
WARNINGS:
•TO AVOID ELECTRIC SHOCK, DISCONNECT BOTH TEST LEADS FROM ANY EQUIPMENT BEFORE YOU REMOVE THE BATTERY.
•DO NOT OPERATE THE METER UNTIL YOU REPLACE THE BATTERY AND CLOSE THE BACK COVER.
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