Innovative acid sensor aids CIP

Published: 11-Jan-2007


A new type of peracetic acid sensor from ProMinent Fluid Controls, the Dulcotest PAA 1, suited to the food, pharmaceuticals and cosmetics industries, has been launched.

Characterised by its dirt and surfactant resistant properties, the product can be easily integrated with the controller unit and operates online. The sensor is unaffected by media flow and requires minimum maintenance, ProMinent says.

Peracetic acid is an environmentally friendly disinfectant and is particularly suitable for aseptic filling, rinsing and CIP (cleaning-in-place) applications. It reliably disinfects storage tanks, piping systems or product packing drums. Metering peracetic acid at the appropriate levels ensures maximum product quality, hygiene and efficiency, and online meas-urement of peracetic acid provides immediate feedback control without the delays associated with sampling and making laboratory measurements.

With complex manufacturing processes often involving several cleaning stages or circuit loops with various flushing agents or active ingredient solution, the PAA1 provides continuous online measurement in order to maintain the correct peracetic acid level in a control circuit. The sensor also functions selectively even in the presence of hydrogen peroxide and accommodates fluctuations in flow rate and temperature.

Two versions of the PAA 1 are available, offering measuring ranges between 1 and 200 mg/litre and between 10 and 2000 mg/litre. These amperometric sensors operate between pH 3 and pH 8 and are temperature-compensated between 1°C and 45°C.

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