We have purchased one CN0359 DEMO, Now meet below confuse and hope for your help.
1. Use resistance box to simulate real electrode, the output voltage wave form of AD8253 is as below
a. Excitation frequency is 100Hz, it's flat on the top and the waveform is normal.
b. Excitation frequency is 1000Hz, small lean on the top.
2. Use real 4-pole conductivity electrode, electrode coefficient is 0.55
a. Excitation frequency is 100Hz, the DEMO shows conductance cell error,
b. Excitation frequency is1000Hz,
Seems some issues lead the waveform distortion. As we know capacitance of the real electrode influence the test result and usually we change the frequency to against it.
Can you give your advice that how to get normal waveform with this DEMO when using a real 4-pole electrode,
What's more if you have any experience to avoid waveform distortion with this CN0359 design please kindly share it.