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1. DEVRY ECET 105 Week 1 iLab Introduction to Laboratory Test
Equipment NEW
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ECET 105 Week 1 iLab Introduction to Laboratory Test Equipment NEWI.
OBJECTIVES
1. To learn the function and basic operation of the instruments comprising a test
bench
2. To gain a basic understanding of how to use the power supply, DMM,
oscilloscope, and function generator
3. To take measurements using the power supply, DMM, oscilloscope, and
function generator
4. To determine waveform characteristics of various signals
II. PARTS LIST
Equipment
IBM PC or Compatible with Windows 2000 or Higher
ELVIS II+
Parts
1 - 1.0 kohm Resistor (color bands = brown, black, red, gold)
1 - 4.7 kohm Resistor (color bands = yellow, violet, red, gold)
III. PROCEDURES
A. Introduction to Instruments and Measurements
Before beginning this lab, be sure that you have read the Lab Prepfor an explanation
of how to use the various instruments.
1. Measure DC voltage with the DMM.
a. Attach the power supply +5 V outputs to the DMM inputs.
b. Launch the ELVIS II+ DMM and select DC Voltage.
1. Press Run and record the reading below, including units.
2. Press Stop.
DMM measurement ___________________________
2. Measure DC voltage with the oscilloscope.
1. Launch the ELVIS II+

2. 2. Enable Channel 0.
3. Ensure the following settings.
• Probe—10x
• Coupling—DC
• Scale—2 Volts/Div
• Vertical Position—0
• Timebase—50 us/Div
• Trigger Type—Immediate
• Trigger Source—Chan 0 Source
• Horizontal Position—50
• Acquisition Mode—Run Continuously
1. Connect the oscilloscope probe from the oscilloscope to the +5 V output (main
probe to +5 V and ground to GND).
2. Press Run and read the voltage on the oscilloscope. Record your reading with
the appropriate unit in engineering notation.
Vertical scale _____________ Horizontal scale______________
V = _____________
1. Press Stop.
3. Measure resistance with the DMM.
4. Remove a 1 kohm resistor (color bands are brown, black, red, gold) from the
parts kit. The first three bands indicate the value of the resistor and the fourth band
indicates the accuracy of the resistance. A gold band indicates that the measured
value should be within ±5% of the specified value.
5. Switch the DMM to ohms (Ω) and measure the resistor value by clipping the
probes to each end of the resistor.
6. Press Start and record the measured value and the calculated range (1 kohm
±5%) including units.
DMM measurement ____________________________
Theoretical range ______________________________
7. Repeat Step 3 with the 4.7 kohm resistor (color bands are yellow, violet, red,
and gold) including units.
DMM measurement ____________________________
Theoretical range ______________________________
8. Press Stop.
4. Measure a changing signal voltage with the oscilloscope.
9. Launch the ELVIS II+ frequency generator.
1. Connect the frequency generator output to the oscilloscope CH0 input.
2. Select the square wave output ( ) and set the frequency to 1 kHz.
5. Set the Amplitude to 5.00 Vpp and the DC Offset to 2.50 V.

3. 6. On the oscilloscope, adjust the Time/Div setting to a value of 0.5 ms.
7. Set the Volts/Div to 2.0 V.
8. Press Run on both instruments. Sketch the observed waveform below. Label
both axes and ground.
Output Waveform for Step 4
1. Stop both instruments.
5. Generate and measure triangle waveforms.
2. Set the frequency generator to output a triangle wave ( ) with a frequency of
1.0 kHz, 6.00 Vpp, and 0 V DC Offset.
3. Set the oscilloscope to 2.0 V/div and 200 μsec/div.
4. Run both instruments and sketch the output below. Label the axes and ground.
Output Waveform for Step 5
1. Measure and record the values below, including units.
Vertical scale _____________ Horizontal scale______________
Period ________________ Frequency _________________
1. Stop both instruments.
6. Generating and measuring sinusoidal waveforms.
6. Select a sine wave output with a frequency of 1 kHz, 6.0 Vpp, and 0 V DC Offset.
7. Record measurements displayed on the oscilloscope display, including units.
Vertical scale _____________ Horizontal scale______________
Peak +V = ________________ Frequency = ________________
1. Component Identification
Go through your parts kit and identify the various components and tools you have.
Application and proper use will be demonstrated in video clips and discussed in the
Lab Q & A thread.
1.
2. After verifying that your lab kit is complete, select two components and find
out what they are and what they do. HINT—Use the instruction manual, illustrated
parts list, the campus library and/or the Internet to guide you toward the answers.
Record the part numbers and functions below.
First device’s part number or physical description _________________
First device’s function (what does it do?)
Second device’s part number or physical description _________________
Second device’s function (what does it do?)
1. TROUBLESHOOTING
Describe any problems encountered and how those problems were solved.
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