Recent content by Dave

So how many process variables are you monitoring and the level of measurement redundancy required, together with the number of control variables being used to achieve the desired outcomes.

Acid flow measurement well understood. Contact the major instrument suppliers in your area. The key is getting proper support from the supplier when things get complicated.

Indeed, even solder connections have a MTBF

The volume of the horizontal tank is immaterial, only the liquid level relative to the transmitter connection. Such factors have been studied for thousands or years, from Archimedes on...

Those numbers indicate that the greatest loss of reliability is outside of the control of the manufacturer, and in the hands of the end user.

There is no simple answer as it involves process design, and how are the controls and alarms supervised. The latter dictates that operations and maintenance staff be involved in the design review.

George Boole offers a good introduction "The Laws of Thought."

To automate, you begin with the motor start switch, then decide what's next, one step at a time.

Typically, you have the meter shop tested prior to purchase

If you show your complete design, form of ceramic (composition, size of particles, etc), and preliminary test results, you might get some responses

Tank levels are rarely fast acting, but a reservoir. Fast acting and accurate flow control is common in some processes, but rarely will tank level be used to control the discharge flow. For example, high pressure boilers are a totally different category, especially where super heaters, steam...

Why is flow cascade control being used at all

There are numerous issues you've not mentioned. (1) Is the engine constant speed? (2) Why are you using a butterfly valve? (3) What is the pipe size and nominal flow rate? (4) You've not mentioned temperature control when that is the main function of the coolant loop. Process design is as...

Contact your vendor, they will have addressed to issues

you must consult the vendor literature