Maricopa Community Colleges  ABC155   20052-20086 
Official Course Description: MCCCD Approval: 07/22/08
ABC155 20052-20086 LEC 0.50 Credit(s) 0.50 Period(s)
Electrical Test Equipment
Operating characteristics and use of electrical test equipment including ammeter, voltmeter, ohmmeter, volt-ohm milliammeter, wattmeter, megohmmeter, frequency meter, power factor meter, continuity tester, voltage tester and recording instruments. Reading and converting scales in testing meters. Polarity and definition of frequency.
Prerequisites: (Registered apprentice status and ABC154) or permission of the apprenticeship coordinator).
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MCCCD Official Course Competencies:
 
ABC155   20052-20086 Electrical Test Equipment
1. Describe the operating principles of specific electrical test meters including ammeter, voltmeter, ohmmeter, wattmeter, megger, continuity tester, voltage tester and recording instruments. (I)
2. Identify additional safety precautions required in the use of a megger and explain the need for such precautions. (I)
3. Read and convert scales of specific electrical test devices from one scale to another. (I)
4. Describe polarity and its importance to electrical testing equipment. (I)
5. Define frequency as it relates to testing equipment and describe the use of a frequency meter. (II)
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MCCCD Official Course Outline:
 
ABC155   20052-20086 Electrical Test Equipment
    I. Meters
        A. Terminology
          1. AC (alternating current)
          2. Coil
          3. Continuity
          4. d'Arsonval Meter Movement
          5. Frequency
          6. Polarity
          7. Shunt resistor
          8. Shunt valve
        B. Ammeter
        C. Voltmeter
        D. Ohmmeter
        E. Volt-ohm milliammeter
          1. Range switch
          2. Function switch
          3. Scales
        F. Wattmeter
        G. Megohmmeter (Megger)
          1. Special uses
          2. Safety precautions
      II. Frequency meter
          A. Frequency
            1. Phase rotation tester
            2. Infrared sensing device
            3. Cable-length meter
          B. Power factor meter
          C. Continuity tester
            1. Audio
            2. Visual
          D. Voltage tester (Wiggy)
          E. Recording instruments
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