Capacitive level sensor P139

for liquidsanaloghigh-precision

The ceramic capacitive measuring principle of the P139 level transmitter is used in a wide range of industrial applications. In combination with a high-quality stainless steel housing, the sensor is suitable for almost all liquids and gases.  The  sensor  is  commonly  used in  pumping and  lifting applications,  where it guarantees long-term stable measurement.  Our  modular  design  concept  provides a wide  variety of  products.  Feel  free to contact us if you need a customization that is not listed in this datasheet. Features Dry gold plated ceramic sensor Accuracy ≤ 0,3% High overload capability Rugged design Optionally integrated PT100 / PT1000 sensor for temperature measurement Applications: Gaseous media Well / Deep well Lifting equipment Viscous and pasty media Technical data: Power supply - 20 mA output: 9…30 V DC Accuracy - ≤ ± 0,3 % FS @ 25 °C Long term stability - ≤ ± 0,3 % FS / Year Response time - 200 ms - others on request Switch-on time - < 1 s Temperature coefficient - Zero: ≤ ± 0,015 % FS / Kelvin ≤ 200 mbar ≤ 0,025 % FS / Year - Span: ≤ ± 0,015 % FS / Kelvin ≤ 200 mbar ≤ 0,025 % FS / Year Medium temperature - -25…80 °C Surrounding temperature - -25…80 °C Storage temperature - -40…85 °C Short-circuit resistance - Permanent Reverse polarity protection - Protection against reverse polarity, but no function Electromagnetic compatibility - Interference emissions and immunity acc. to EN 61326 Wetted materials - - Sensor: Ceramic Al2O3 - Process seal: FPM (Viton), EPDM, FFKM (Chemraz / Kalrez) Weight - Approx. 550 g with 5m cable