Max/Min Readings Are Lower Than Expected When Using Custom Scaling

Updated Oct 29, 2018

Reported In

Software

  • Measurement & Automation Explorer (MAX)
  • LabVIEW

Driver

  • NI-DAQmx

Other

I have set up custom scaling in a DAQmx task but I am not seeing values as high or as low as I am expecting but when I look at the voltage readings everything seems fine.

Solution

Make sure that the max and min settings for the signal input range are expressed in the scaled units.

For example, if a custom scale, which converts volts to meters, is assigned to a voltage channel, the channels minimum and maximum attributes are expressed in meters.

 

Additional Information

After a scale is assigned to a channel, the scale applies to all attributes normally expressed in the pre-scaled units of the channel. This includes the maximum and minimum values assigned to the channel.

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