⎪ Hydraulic, pneumatic and automation solutions ⎪
volved. “For the optimi- sation of ac- tivated sludge,
can be removed, replaced, recalibrated and cleaned, without stopping the process. “The compact pneumatic rotary-lift motor and its integrated control valves can all be removed and replaced from the unit safely and without interruption,“ Springer assures. Systematic process analysis In addition to the fitting itself, Knick also offers a complete measurement and control solution via its Unical Controller and Protos Process Analysis System. “Knick has developed a fully automated measuring loop with uniquely high levels of safety and reliability. Its immersion fittings can be automatically cleaned and calibrated without contaminating the process medium. “The controller is compatible with analogue and digital sensors. It is a 4-wire
system with two explosion-pro- tected active outputs and a modular structure that enables simple retrofit or conversion. “Knick Ceramat systems offer the most robust and reli- able solution for measuring pH, conductivity and dissolved oxygen, as well as several other process variables, where conditions are unsuitable and unsafe for any alter- native option,” concludes Henning Springer. https://www.mecosa.co.za/ Ceramat WA 154 and WA 160 versions have particularly high immersion depths for measurements in conduits, thick-walled thermally insulated reactors and large containers where measurements need to be taken at a distance from the outer wall.
the oxygen levels introduced during aeration become critical to the whole process,” he adds.
Key advantages of
Ceramat systems Ceramat’s patented retractable fit- ting is designed to overcome problems with retractable sensor systems that rely on O-rings, which tend to fail quickly under harsh conditions and in corrosive/ abrasive media. “Sealing is achieved using a ceramic material, which is harder than steel and highly resistant to chemical, thermal and mechanical influences, which guarantees much greater uptime,” notes Springer. To ensure the best possible resistance to process fluids and external environ- ments, the static outer housing options for Ceramat fittings include PVDF, PEEK, stainless steel, Hastelloy, or titanium, each known for its chemical and UV re - sistance, strength and thermal stability, depending on the process medium. The housing also ensures the sensors remain stationary and free of mechanical stress. “The system also offers options for several immersion depths, which are specially developed for measurements in conduits, thick-walled thermally insulated reactors, and large containers where the measurements need to be taken away from the side walls,” he tells MCA . Ceramat’s design enables easy mainte- nance by allowing the entire drive unit to be removed under full-process conditions. The process medium, whether corrosive, hot, toxic and/or under pressure, remains reliably isolated. If a sensor is broken, it
In addition to the fitting itself, Knick also offers a complete measurement and control solution via its Protos Process Analysis System (left), its Unical Controller, and metering pumps with cleaning and calibration solutions.
A unique feature is the easy removal of the entire drive unit under full process conditions. The process medium, whether it’s corrosive, hot, toxic and/or under pressure, remains reliably isolated, and ff the sensor is broken, the calibration chamber can be cleaned under process conditions.
January-February 2025 • MechChem Africa ¦ 23
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