EAP 1050 - Digital Multimeter Principles

Clock Hours: 12

Delivery Mode
on-ground

Course Description:
Review of Digital Multimeter (DMM) safety; abbreviations; symbols and terminology; displays; advanced features; measuring AC voltage, DC voltage, resistance and continuity; Ohm’s Law and Power Formula; measuring frequency and duty cycle; testing diodes; measuring capacitance, DMM accessories; and selecting the proper DMM.

Student Learning Outcomes:
Upon completion of the course, the learner will:

List the four overvoltage installation categories and an example of each
Describe situations that require grounding, lockout, and tagout
Identify safety precautions for prevention of and protection from arc flash and arc blast
Identify the maximum voltage and current listings on digital multi-meter (DMM) terminals and test leads
Test condition of DMM test leads and fuses
Identify common DMM abbreviations
Identify common DMM symbols
Define DMM terms including an abbreviation and/or symbol
Identify common prefixes used with electrical/electronic values
Identify the resolution of a DMM reading
Determine maximum readings with different range settings
Determine the value of a bar graph measurement
Identify ghost voltage displayed
List the ranges of the voltage, current, and resistance scales on the DMM
Set the DMM to record minimum and maximum measurements
Set the DMM to display the difference between a reference measurement and subsequent measurements using the Relative mode
Set the DMM to automatically subtract the resistance of the test leads when taking low-resistance measurements
Measure AC voltage.
Determine branch circuit voltage drops.
Use Relative mode with AC voltage measurements.
Convert rms, average, peak, and peak-to-peak voltage values.
Measure DC voltage.
Determine DC circuit polarity.
Use Relative mode with DC voltage measurements.
Use MIN MAX Recording mode with DC voltage measurements.
Determine circuit overloading by measuring and recording voltage drop.
Measure component or circuit resistance.
Test continuity.
Use RANGE setting to display resistance measurement ranges.
Use Relative mode to subtract resistance of test leads from resistance measurement.
Measure very high resistance using the nS (nanosiemens) resistance range.
Convert nanosiemens to megohms.
Measure current in a series branch of circuit.
Measure current in a parallel branch of circuit.
Determine the relationship between resistance and current.
Use MIN MAX Recording mode to monitor changes in current.
Apply Ohm’s law to calculate voltage in a circuit.
Apply Ohm’s law to calculate current in a circuit.
Apply Ohm’s law to calculate resistance in a circuit.
Apply power formula to calculate power in a circuit.
Apply power formula to calculate voltage in a circuit.
Apply power formula to calculate current in a circuit.
Measure line frequency on an AC circuit.
Measure line frequency on a full-wave DC circuit.
Calculate duty cycle using the ON time and total time of cycle.
Identify anode and cathode of diode.
Test diode using Diode Test mode.
Test diode using resistance mode.
Determine forward-biased or reverse-biased condition of diode.
Identify the acceptable resistance range of good test leads.
Convert a Fahrenheit temperature measurement to a Celsius temperature measurement.
Convert a Celsius temperature measurement to a Fahrenheit temperature measurement.
Identify the operating principles and applications of a clamp-on current probe accessory high-voltage test probe accessory, contact temperature probe accessory, noncontact temperature probe accessory, high-frequency test probe accessory, pressure/vacuum module accessory, and fiber-optic meter accessory.
Define resolution, digits, counts, accuracy, and response time as listed in DMM specifications.
Identify DMM features required for common applications.
Interpret key information listed in DMM specifications.

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