Hi Vignesh, Thanks for your post! This is an interesting issue, my immediate thought is that there is a degradation of some sort in your signal chain and that the first case from Issue No1 and Issue No2 are related/caused by the same thing. Are you using the current souce or pullup/pulldown resistor method? What current magnitude are you using? What is your lead-off frequency? Were the machines being rigorously tested during the few days before the problem presented itself? Are the symptoms the same on both machines? Did the issues appear at the same time on both machines? What is the ECG cable connection to the board like? Can you take a picture? For the second case on Issue No1, is the reading correctly displayed with the ECG cable is connected? Is there any noise on the supplies?
↧