PROCESS CONTROL TECHNOLOGY
The PCT41 extends the capability of the basic
PCT40 by adding an additional process vessel, complete with a heating/cooling
coil and a stirrer. Again the inputs and outputs are brought to the quick
release manifold block. The PCT41 also includes a conductivity probe to
allow cost effective fluid property demonstrations to be performed.
The addition of the process vessel allows more complex process control problems to be addressed, including remote set point demonstrations. Again these all take place with the repeatability advantages that electronic and software control brings.
Additional loops that can be implemented with the PCT41 include:
> Conductivity control of reactor contents by varying flowrate of one
component
> Temperature control of reactor contents by varying heating fluid flowrate
> Temperature control of heating fluid by varying heater power
> Ratio control of two flows (Fig 1)
> Cascade control of conductivity and flow (Fig 2)
> Feedforward control of flow to flow
> Feedforward control of flow combined with feedback control of conductivity
(All these loops are under software control)
Requires: PCT40
Volume: 0.1m³
Gross weight: 8kg
Height: 0.45m
Width: 0.25m
Depth: 0.3m
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