A
Currently we developing existing plant where all control valves have no input signal on positioners. Means operator does not exactly know did valve opened or not. But on the other hand there're a lot of other sensors like level, temperature and etc near these valves and through them it is clear if valve opened or not (i.e. temperature changes when it open and etc).
The question is did anybody face this kind of issue? Did you always install signal from positinoners? From economic point of view it seems expensive to me. Or I missed something?
Thank you!
The question is did anybody face this kind of issue? Did you always install signal from positinoners? From economic point of view it seems expensive to me. Or I missed something?
Thank you!