Potentiometric level transmitter - Alfa Laval - #1

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. kyThe Level Transmitter for sanitary use in smaller tanks Alfa Laval Potentiometric Level Transmitter . Application The Alfa Laval potentiometric level transmitter is designed to fulfill the demands in Sanitary and pharmaceutical production Main features are: - Wetted parts in AISI316L, stainless steel and PEEK - Compact, and hygienic design - Process temperature -20...140°C - Defined empty registration - Local Led monitor in fieldhousing - Insensitive to adhesive media - Analogue output 4-20 mA Standard range The Alfa Laval potentiometric level transmitter is ideal for measurements in small vessels with tough, pasty or strong adhesive media, such as ketchup, honey, and toothpaste. The integrated electronics provide a 4...20 mA output signal and has incorporated automatic recognition of top or bottom mounting position, Even angled installation is possible. Due to the high temperature limit the Alfa Laval potentiometric level transmitter is well suitable for CIP and SIP processes. The hygienic installation is guaranteed by using the hygienic Clamp DN 50 (ISO2852) / Clamp DN 51 (DIN32676) connection Working principle The Alfa Laval potentiometric level transmitter utilizes the potentiometric measurement principle and can be used in all medias that have a minimum conductivity of 1 ìS/cm. From the low resistive measuring rod a high frequent current is fed through the medium to the tank wall. The voltage between the rod and the tank wall is measured. This output voltage is proportional to the tank filling level. The measurement is unaffected by temperature and adhesive media. Technical data Measuring range: . . . . . . . . . . . . . . .0 to 300 cm Resolution, input: . . . . . . . . . . . . . . .15 bit Accuracy: . . . . . . . . . . . . . . . . . . . .±0.5% of FS Repeatability: . . . . . . . . . . . . . . . . . .0.1% of FS Media conductivity: . . . . . . . . . . . . . .Min 50 ìS/cm Important Please observe that a non-linear conductivity in the media will affect the accuracy of the measurement. If mounted in a non-conductive tank such as a plastic tank a reference rod must be installed.