Superheat measurement

[Zilvinas]

Hello guys,

I am young cooling engineer and now I have faced one problem. I will try to explain where is the problem. Earlier we used differential thermometer to measure superheat in evaporator. Now we are measuring by suction pressure on compressor suction valve and temperature out of evaporator.
It looks like we are doing right. It works perfect when we have one evaporator. But how about measuring two different evaporators SH (both has TXV) by using the same suction pressure? I mean one evaporator is slightly bigger than other, so there is correct to measure suction pressure on compressor valve and two temperatures out of evaporators?