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U3-HV : drop of voltage over 3.6V

Started by user1979 , Jan 15 2014 06:48 AM

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#1 user1979

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62 posts

Posted 15 January 2014 - 06:48 AM

Hello,

i am using a U3-HV with labview 11. In order to make AI readings over 2.4V I have set the negative channels to 32. When my input gets higher than 3.6V the readingsfalls back to 2.6V. Is there a way to avoid this drop by changing a parameter in the program? perhaps via the Control Pannel of your software? Having a reading blocked at 3.6V for any measures over 3.6V would be great.

Many thanks,

User

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#2 LabJack Support

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8677 posts

Posted 16 January 2014 - 09:02 AM

That is the way the 0-3.6V input behaves in hardware. When you go over 3.6V the protection diodes start to clamp and that pushes the voltage reading back down. Consider using an LJTick-Divider.

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U3-HV : drop of voltage over 3.6V

#1 user1979

#2 LabJack Support

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