Radio Shack 22-602 Owner's Manual

Clamp-on ac ammeter with detachable multimeter

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Clamp-On AC Ammeter
with Detachable Multimeter

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Summary of Contents for Radio Shack 22-602

  • Page 1 Clamp-On AC Ammeter with Detachable Multimeter...
  • Page 2: Table Of Contents

    ˆ Contents Features ......................3 A Word About Safety .................. 4 Special Panel Markings .................. 5 Specifications ....................6 Ranges ....................... 6 Accuracy ....................6 Miscellaneous .................... 6 A Quick Look at Your Multimeter ..............7 Preparation ...................... 8 Installing a Battery ..................8 Connecting the Test Leads .................
  • Page 3: Features

    ˆ Features Your RadioShack Clamp-On AC Am- Fuse and Diode Protection — help meter with Detachable Multimeter is protect the multimeter. designed with a precision meter Battery Condition Testing — the movement to avoid mechanical shock multimeter shows when you need to damage.
  • Page 4: A Word About Safety

    A WORD ABOUT cover is in place and fully closed with the screw fully tightened. SAFETY • Because many AC/DC sets have We have taken every precaution in a potentially hot chassis, be sure designing this multimeter to ensure the top of your workbench and that it is as safe as we can make it.
  • Page 5: Special Panel Markings

    MEASURE CURRENT • ALWAYS WEAR PROTECTIVE VOLTAGE COMMERCIAL LEATHER GLOVES, A FACE ELECTRICAL PANELS. UNLIKE SHIELD, AND FIREPROOF ARM A HOME AC OUTLET, A COM- AND UPPER BODY PROTEC- MERCIAL ELECTRICAL PANEL TION WHILE USING THE MULTI- TREMENDOUS CUR- METER MEASURE RENT SURGE...
  • Page 6: Specifications

    ˆ Specifications RANGES AC/DC Voltage ................15V, 150V, 500V DC Current ....................150 mA AC Current ..................3A, 15A, 30A Resistance ..............100kΩ (Center 3.5KΩ), 10KΩ (Center 350Ω) ACCURACY DC ..................±3.0% of full scale AC ..................±4.0% of full scale Resistance ..............
  • Page 7: A Quick Look At Your Multimeter

    ˆ A Quick Look at Your Multimeter Ω OHMS ADJUST AC AMMETER (left side of MULTIMETER multimeter) A Quick Look at Your Multimeter...
  • Page 8: Preparation

    ˆ Preparation INSTALLING A Top Cover BATTERY Your multimeter requires one AAA battery (not supplied) for power. For the best performance and longest life, we recommend a RadioShack alka- line battery. Warnings: • To avoid electrical shock, discon- nect both of the multimeter’s test leads from any equipment before you install or remove the multim- eter’s battery.
  • Page 9: Connecting The Test Leads

    4. Place the battery in the compart- Plug the black test lead’s right-angled ment as indicated by the polarity end into the multimeter’s (common) – symbols (+ and –) marked inside. jack, then plug the red test lead’s right-angled end into the + jack. 5.
  • Page 10: Zero Adjustment

    3. Use the screw to secure the ammeter to the multimeter, then put the top cover you removed in Step 1 in a safe place. ZERO ADJUSTMENT If the needle does not normally rest exactly over 0 on the left side of the ACVA/DCVA scale, use a flat screw- driver to adjust the plastic screw on the center of the multimeter’s face to...
  • Page 11: Measuring Dc/Ac Voltage

    MEASURING DC/AC VOLTAGE WARNINGS: • NEVER CLAMP A TEST LEAD TO A HOT WIRE (USUALLY RED, BLACK, OR BLUE IN AC Note: If you are not sure about WIRING CIRCUITS). IF ONE the voltage level you are measur- LEAD IS CLAMPED TO A HOT ing, set the function selector to WIRE AND YOU TOUCH THE .
  • Page 12: Measuring Three-Phase Ac Voltage

    to 2, the AC or DC voltage is YOU DO NOT USE THIS MULTIME- 100 volts (2 × 50 = 100V). TER FOR SUCH APPLICATIONS. • If the function selector is set to We designed this multimeter primarily , read the lower line of to measure household AC voltages.
  • Page 13: Measuring Ac Voltage Riding On A Dc Source Bias

    Measuring AC Voltage 2. Disconnect the test leads from the circuit. Riding on a DC Source Bias 3. Remove power from the circuit To measure AC voltage superim- under test and discharge all posed on a DC voltage source bias capacitors.
  • Page 14: Measuring Ac Current In A Wire

    1. Set the function selector to mA DC mA 2. Remove power from the circuit under test and discharge all capacitors. 3. Break the electrical path for the circuit in which you want to mea- sure current. Then connect the –...
  • Page 15 4. Hold down the trigger lever on 6. To help ensure an accurate read- the ammeter. The ammeter’s ing, move the probe so the wire jaws open. Then insert the wire is in the center of the open area you are measuring inside the inside the jaws.
  • Page 16: Measuring Wattage

    MEASURING WATTAGE Caution: Never connect the test leads to a source of voltage when the × × × × Ω or You can use the multimeter and am- function selector is set to × × × × Ω. meter to tell how many watts of power an appliance uses.
  • Page 17: Care

    • If the function selector is set to Hint: If you are identifying cathode × × × × Ω, multiply that reading by and anode ends or the type of transis- 1000 to compute the resistance. tor (PNP or NPN), the actual polarity For example, if the needle points of the multimeter's voltage is the op- to 1, the resistance is 1000 ohms...
  • Page 18: Replacing The Fuse

    REPLACING THE FUSE 6. If the fuse is blown, discard it and save the ribbon (to use with the If the multimeter does not work, you next spare fuse you store in the might need to replace the fuse with compartment).
  • Page 19 ˆ Notes Notes...
  • Page 20 This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102 We Service What We Sell 12/99 22-602 RadioShack Corporation 01A01 Fort Worth, Texas 76102 Printed in China...

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