But ...

Originally Posted by meelika

The error occured only when the RR and HR were the same value, if for example HR=80 and RR=20, then there were no errors.


So something doesn't sound right, there.

Pity I'm not there to have a go myself; I'm not sure exactly how the PS-420 simulator works (whether it can output two - both - signals simultaneously).

But bear in mind that on a Real Patient, three well-positioned electrodes will (should) give both ECG and RR. smile

Where - to which pins - have you got your three leads connected on the simulator? And does the LA/LL slide switch make any difference?

If you don't inspect ... don't expect.