Catalogs >
Alfa Laval >
Level switch

Level switch
3Pages

Catalog excerpts

. kyThe level switch for sanitary use Alfa Laval Level Switch . Application The Alfa Laval level switch is designed to fulfill the demands for precise level indication in the Sanitary and pharmaceutical production. Main features are: - Wetted parts in AISI 316L, stainless steel and PEEK - Compact, and hygienic design - Process temperature -40...200°C - LED indicator integrated into the field housing - Not influenced by foam - Ideal for media registration through registration of changes in product dielectricity - Quick teach option for difficult medias - Maintenance free Standard range The Alfa Laval level transmitter is ideal for measurements in liquids such as water and beer as well as viscous, sticky fluids, such as honey, yoghurt and toothpaste. Even dry medias can be measured, eg. sugar or flour. The integrated electronics provide a digital logic signal and has incorporated automatic compensation of foam, bubbles and condensate as well as sticky media. Due to the high temperature limit the Alfa Laval level switch is well suitable for CIP and SIP processes. The hygienic installation is guaranteed by using the hygienic Clamp DN 38 (ISO2852) / Clamp DN 40 (DIN32676) connection. Working principle The Alfa Laval level switch uses a high frequency signal sweep which is radiated from the sensor tip into the tank. The media will act as a virtual capacitor which, together with a coil in the sensor head, will form a circuit creating the switch point signal. This virtual capacity will depend on the di-electric value of the media which is well defined for most medias Technical data Accuracy repeatabullyti: . . . . . . . . . . .±1 mm. Hysteresis: . . . . . . . . . . . . . . . . . . .±1 mm Measures values with dielectric values : .>1.5 Mechanical data Process connections Process connections . . . . . . . . . . . . .Clamp DN 38 (ISO2852)/Clamp DN 40 (DIN32676) Materials Wetted parts: . . . . . . . . . . . . . . . . .AISI 316 and PEEK Fieldhousing . . . . . . . . . . . . . . . . . .AISI 304 Operating temperature Wetted parts: . . . . . . . . . . . . . . . . .-40to85°C(140°C < 1 hour) With cooling tower: . . . . . . . . . . . . . .-40 to 200°C (option) Field house: . . . . . . . . . . . . . . . . . .-40 to 115 °C. Protection class . . . . . . . . . . . . . . . .IP67 Maxmedia pressure: . . . . . . . . . . . . .40 bar Weight Sensor: . . . . . . . . . . . . . . . . . . . . .approx 500 gr.

Open the catalog to page 1

Certificates - CEmarked - 3A (option) - 3.1B certificate (option) - ATEX certificate (option) Electrical data The integrated electronics features short circuit and high temperature protection. Power supply: . . . . . . . . . . . . . . . . .18-36 Vdc Power consumptionmax: . . . . . . . . . .70 mA Output: . . . . . . . . . . . . . . . . . . . . .logic,either digital, PNP or NPN Max output current: . . . . . . . . . . . . .50 mA Electrical connection: . . . . . . . . . . . .M12 orM16 cable gland Response time: . . . . . . . . . . . . . . . .<0.1 sec Dimensions (mm) ø55 58 57.5 TD 530-005_1...

Open the catalog to page 2

. ESE01581EN 1001 The information contained herein is correct at the time of issue, but may be subject to change without prior notice. How to contact Alfa Laval Contact details for all countries are continually updated on our website. Please visit www.alfalaval.com to access the information direct.

Open the catalog to page 3

Level switch 3Pages

Catalog excerpts

All Alfa Laval catalogs and technical brochures

Level switch
3Pages