The controller MEMPRO S6 is convenient for level controls on non-pressurised tank. The 4 switching points are adjustable over all the measuring range. This type of level transmitter is not affected with contaminated liquids or crystallizing fluids, as long as the stem is not tapped*. 

 

Fluids to control may be: Aggressive – Viscous – Dirt, crystallising or sticky 

 

(*): The purge air inlet accepts a pressure of up to 2.5 bar in order to flush all dirt on the stem from time to time. The device MEMPRO BL allows the automation of cleaning (reset of measuring) operations. 

The MEMPRO S6 backpressure sensor functions in accordance with the Pitot static principle, i.e. current fill-level is deduced from hydrostatic pressure measured in a tube immersed in the liquid. When the level increases, the fluid rises inside the tube. The pressure of air trapped inside increases as well. This pressure corresponds to the height of the water column outside (from the bottom tube end). Four limit value-switching points can be assigned to the fill-level range via the setup menu. All switching points feature adjustable delay time, adjustable hysteresis and selectable NC/NO function. 

MEMPRO S6 level controllers are suitable for aggressive liquids since the wetted parts are of PVC, PP or stainless steel for the stem and ceramic for the sensor. With a flexible hose, it is easy to have a remote electronic head, faraway of aggressive vapours. Venting connection integrated in the top: as an option, a venting module is connected for out-gassing and encrusting liquids refreshing; it resets the air column when media temperature changes during the process. 

Supply power: 24 V DC (20 to 30 V DC is possible) Connected load approx. 2 VA

Ambient temperature: -20 to +60 °C

Output relays: 3 contacts +1 floating limit value contact: 3 with common root and 1 floating contact

(can be selected as a limit value contact or as a clock generator output)

Switching capacity: 250 V AC, 2.0 A / 30 V DC, 1.0 A

Terminal housing: PBT, fibre-glass reinforced, IP 65 acc. EN 60 529

Terminals: Screw terminals, max. 1.5 mm2

Measuring cell: Ceramic diaphragm, with EPDM sealing

Measuring accuracy: 0.5% ± 0.5 digits 

Display resolution: 1%

Reset hysteresis: Adjustable from 0 to 99 %

Indicators: 2 digits of 7 segments LED display, 4 LED = status of each limit value relay 

Settings: Rotary switch and pushbutton

CE Mark: In accordance with low-voltage directive (2006/95/EG), EMC directive (2004/108/EG)