Welch Allyn Cardio Perfect Workstation Single CPu Install (Windows XP) Instructions - Installation Guide - Manual (Page 3)

Finish
Finish
CardioPerfect CD.
2 If you will be using a spirometer or ECG recorder,
set up the computer to keep power on.
Keeping power on ensures continuous communication with
your USB devices.
Verify that your hard disk and system standby
settings are all Never.
Power settings for laptops ONlY
3