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Stopped Collecting Data during test? Try to Disable USB "power off" feature on your computer

Windows includes a feature that turns the power off to USB ports on a computer after a period of time in order to save power consumption.   This could possibly affect the communication of the CALPlex datalogger while collecting data and result in a “communication error” message.  Therefore, we recommend you change the settings for your USB ports within Windows so they are not powered-off while using CALPlex.    To do this, follow the instructions below…

WINDOWS XP:
·         Go to Control Panel
·         Select SYSTEM
·         Go to the Hardware tab
·         Select the Device Manager
·         Go to the Universal Serial Bus Controllers
·         For each USB Root Hub Entries right click and select Properties
·         Go to the Power Management Tab and un-click the "Allow Computer to turn off this Device to save power" check box. 
(Please un-check this check box for all USB Root Hub Ports) 


WINDOWS 7:
·         Go to Control Panel
·         Select System and Security
·         In System section, select Device Manager
·         Select “Universal Serial Bus Controllers”
·         For each USB Root Hub Entries right click and select Properties
·         Go to the Power Management Tab and un-click the "Allow Computer to turn off this Device to save power" check box. 
(Please un-check this check box for all USB Root Hub Ports)

 

 

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