Solution
The device's frequency range is 15 Hz to 500 kHz
This error can appear if you don't set the correct value in "niDMM_ConfigureFrequencyVoltageRange". If you don't set up this value in the program it will default to 5 V. To correctly measure the frequency in this scenario you should lower this value to 150 mV and 50 mV.
Amplitude and frequency measurements are performed independently in the card.
- Amplitude measurements are determined via digital signal processing.
- Frequency measurements are determined using a zero-crossing detector and a counter.
You will also need to take into account the minimum amplitude when adjusting the digitizer range.