Catalogue Capacitive Filling Level Systems
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series • Analogue Measurement
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Level control systems for analogue measurements.
The capacitive measurements systems of the True Level series are designed for analogue measurement. The system comprises:
> Filling level probe KFS-1-...
> Evaluation unit KFA-1-...
The analogue level measurement automatically makes a compensation for the changes in the dielectric constant of the filling material, which is very advantageous for applications with changing products. For the DC-compensation (DC = dielectric constant) a reference measurement is made. For that reason a reference area is in the tip of the probe.
The industrial probes. KFS-1-.../ are available from 400 mm up to 2000 mm in length. The position and the length of the measuring area are user-definable within the possible effective range and therefore it can be determined for optimal matching of each application.
The available evaluation units are
• Analogue output KFA-1-...-UL-KL = Voltage 0...10 V DC
• Analogue output KFA-1-...-IL4-KL = Current 4...20 mA
• Analogue output KFA-1-...-FL-KL = Frequency 0...10 kHz
The adjustment of the measurement can be made in the empty-condition and it is easy due to adjustment-aids. The effective direction of that output signal is programmable by means of a jumper, and with an adjustable damper slop motions can be eliminated. Additionally a safety relay output is available, which is activated as soon as the filling level falls below the reference-range at the probe tip, thus preventing a total emptying of the container.
In addition an overfill safety output is available on request, which also has a relay output and it works independently from the analogue measurement. In this case the probe contains a further measuring electrode at the desired limit area.
Probes with process connection
The analogue rod-probes series is completed with probes with process-connection with different adaptation possibilities:
> Process connection G1"
> Triclamp
> Varivent
> Milk-tube-screwing
For further information, please see the accessories chapter.
The evaluation electronics remains separate.
For the possible model variations please see the type code.
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8 RECHNER Industrie-Elektronik GmbH • Gaußstraße 8-10 • D-68623 Lamperfhäm • Tel. +49 (0) 62 06 50 07-0 • Fax +49 (0) 62 06 50 07-20 • emäl ¡nfo@rechner-sensors.de • www.rechner-sensors.de
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