Dryhops
Member
I have a tank which is vent to atmosphere and reads level using a pressure transmitter at the bottom to measure hydrostatic pressure. Since the geometry of the tank (area per foot height) is relatively constant, I just do a linear scaling from PSI to %.
This works just fine when the tank is at a steady temperature. However when the temperature rises quickly, especially when being filled with hot water, the pressure will temporarily spike and give false level readings. The pressure resolves in about 5 seconds and the level readings return to normal.
Is there an elegant solution to dealing with this? A filter of some sort to dampen these spikes?
This works just fine when the tank is at a steady temperature. However when the temperature rises quickly, especially when being filled with hot water, the pressure will temporarily spike and give false level readings. The pressure resolves in about 5 seconds and the level readings return to normal.
Is there an elegant solution to dealing with this? A filter of some sort to dampen these spikes?