I want to make a PT100 3 wire half bridge measurement with a AM25T. Is this possible? The AM25T is connected with a CR1000.
Is this possible? I would like to do the same. But in shorcut there is no way to put pt100 in AM25T
The AM25T has solid state relays that have significant "contact resistance" which is many tens of ohms. This prevents it use for switching excitation to sensors. That would not prevent you using it to monitor voltages across a resistor or the sensor resistor in a bridge circuit but you cannot switch the excitation or ground lines to the sensor.
Thanks for the quick answer.