Page 5 of catalogue Flow sensors of Rechner Industrie-Elektronik GmbH

APPLICATION
Flow Sensors are an essential component of processing- and operation Plants in systems technology in order to ensure operational safety. They are used for detection of liquid media and for coolant supply as well as for operation control at Pumps. Because these flow Sensors operate without any mechanical contacts they are almost wear-free. Only the sensor tip has to be in the media that is flowing that requires detection. The high-quality material used for the housing minimises possible abrasion. The „...-S“ version is used to signal the increase or decrease of a flow speed within a processing system.

The „...-IL“ version serves for measuring of flow rate in Control systems in most cases but thanks to the additional option of two adjustable switching points (Smin/Smax; NPN/PNP) it also can be used to give an alarm signal in Processing systems, where a determined flow rate must be achieved or should not be exceeded. The LCD-display shows the present value for the measurement position and, all adjustments can be made (by means of the programming ring) even during the operation process. This saves time after the installation and during final operation as well as during the search for failures in your process. The analogue current signal can be evaluated over large distances and provide the actual values at this remote point.

MOUNTING...
The function of the sensors is not dependent on the mounting position. The sensor should be placed 3 pipe diameters away from bends, Valves or other obstructions in order to avoid incorrect measurements (see fig. 3). If the detected liquid contains air inclusions, then exact measurements cannot be achieved whilst the sensor tip is surrounded by air bubbles. Therefore for horizontal Pipes the sensor should be mounted from below. In the case of the sensor tip being subjected to heavy deposits, the installation should be made from the side (see fig. 4) and for vertical pipes the sensors should be mounted in the feed pipe.
All specifications are subject to change without notice. (03/2006)

Mounting position fig. 3

Side mounting fig. 4

Sensor tip should be completely in the pipe up to a minimum of the beginning of the thread . Thread

Medium Deposits

RECHNER Industrie-Elektronik GmbH • Gaußstraße 8-10 • D-68623 Lampertheim • Tel. (0 62 06) 50 07-0 • Fax (0 62 06) 50 07-36 • e-mail: info@rechner-sensors.de • www.rechner-sensors.de

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