drbitboy
Lifetime Supporting Member
Water boils in a vacuum. This is how naval ships distill water.
P.S. @Peter Nachtwey was the first to mention real issue, many posts ago.
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Water boils in a vacuum. This is how naval ships distill water.
P.S. @Peter Nachtwey was the first to mention real issue, many posts ago.
Hi, Sorry if this is a silly suggestion, because it sounds too simple so i am most likely missing something. Maybe my suggestion will not work in your process conditions.
Can you use a float sensor? Like how a lavoratory cistern controls the water level?
Hi, Sorry if this is a silly suggestion, because it sounds too simple so i am most likely missing something. Maybe my suggestion will not work in your process conditions.
Can you use a float sensor? Like how a lavoratory cistern controls the water level?
View attachment 62537
Too bad they can't get the WIKA breather tube out to the atmosphere via the gland.
View attachment 62537Too bad they can't get the WIKA breather tube out to the atmosphere via the gland.
All pressure sensing is inherently differential, ...
The vacuum is measured and goes to the PLC.drbitboy said:Are you measuring the vaccuum level? If yes, is that measurement, or can it be, made available to the PLC?
I do not know the exact system we are speaking of. Based on the size of the vessel that has been described, i would not necessarily use a float to produce an analog signal that measures liquid level. As i understand it, you need only a device that measures liquid level for the purpose of controlling a large volume of liquid to a set point. For this purpose, i would imagine a float, used to send a digital on/off signal, ie Level below set point ON, Level above set point OFF, would work.
View attachment 62537
Too bad they can't get the WIKA breather tube out to the atmosphere via the gland.