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Running the Software for the First Time
NOTE: These instructions replace those found in the README files.
1. In your computer's Device Manager, look under Ports (Com& LPT) and note the number
assigned to the new USB serial port.
2. Run the Parallax USB Oscilloscope software from the desktop icon, or from Start → Parallax USB
Oscilloscope → USB Oscilloscope 4.0.0.
3. Click anywhere on the software identification window to open the interface.
4. From the menu bar, select File → Set COM Port to open the window shown below.
5. In the Selected COM Port field, enter the COM port number that you identified as the new USB
serial port. When the correct COM port number is entered, the dot indicator below the field will turn
from red to green.
6. If you wish, follow the prompts to calibrate your probes.
7. Your Parallax USB Oscilloscope is ready to use!
Safe Oscilloscope Use
Before test-driving your Parallax USB Oscilloscope, it is important for you to be aware of the general
safety guidelines for working with oscilloscopes. Working with oscilloscopes requires you to work on
circuits with live voltage. It is your responsibility to learn the following safety guidelines and practice
them faithfully while working with live circuits. Failing to do so can result in equipment damage, and
severe personal injury or death. Below you will find a list of safety rules that you are to use as a
guideline while working with live circuits and the Parallax USB Oscilloscope.
Remove metallic jewelry and watches before starting.
•
Make sure your hands are clean and dry while working with any oscilloscope.
•
Work upon an anti-stat pad that is properly grounded.
•
Keep your work area free from food and beverages.
•
Do not attempt to measure any voltage that could be 20 Vpp or higher.
•
If anything you are working on gets hot or smokes, turn it off immediately.
•
ALWAYS disconnect the power supply to the circuit you are measuring before walking away from
•
your workstation.
© 2004 Parallax, Inc. • Parallax USB Oscilloscope (#28014)
Version 1.0
Page 4
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