Square Wave & Positive Square Wave not working on 850 or 550 interface in Capstone 2.0

No voltage output from the Signal Generator of the 850 interface or 550 interface when a Square Wave or Positive Square Wave is selected.



 

 Related Products:

 

  • UI-5000 850 Universal Interface

  • UI-5001 550 Universal Interface
  • Capstone software (version 2.0)

Problem Description:

There is no voltage output from the Signal Generator of the 850 interface or 550 interface when a Square Wave or Positive Square Wave is selected. 

Customers running the RC Circuit or LRC Circuit lab may notice this problem in particular.

PASCO Solution:

 

One of the changes in Capstone 2.0 was an update to the 850 and 550 firmware that allows Duty Cycle support for square waves.  The default setting for Duty Cycle in the Capstone Signal Generator panel is 50%

There is currently a bug in this new feature that impacts Capstone files created in an older version of Capstone (prior to 2.0). This bug causes the Duty Cycle to default to 0% and therefore have no voltage output.  

 duty cycle 0


To resolve this problem, open the Signal Generator panel and set the Duty Cycle to 50% (or any desired value above 0). 


 



Date Created: 03/10/2020
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