Economical level probe P137

IP68with temperature measurement

The  P137 model is an application- and cost-optimized  level  transmitter,  especially suitable as an  OEM  component.  The  screw  cap  simplifies handling and installation.  It  remains  mounted during  operation and protects the  membrane from contaminants in the  medium.  The  ceramic sensor operates according to the  piezoresistive  principle and in  combination  with  the  stainless  steel  housing forms a robust and slim probe.  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 Cost optimized for standard applications 22 mm Ø ideal for 1" pipes Negative pressure measuring range: up to -1 bar Accuracy ≤ 0,5% Optionally integrated PT100 / PT1000 Sensor for temperature measurement Applications: Gaseous media Technical data: Power supply - 20 mA / 5 V output: 9…30 V DC - 0,5...4,5 V output: 5 V DC - 10 V output: 15...30 V DC Accuracy - ≤ ± 0,5 % FS @ 25 °C Long term stability - ≤ ± 0,5 % FS / Year Response time - 50 ms - others on request Switch-on time - < 1 s Temperature coefficient - Zero: ≤ ± 0,03 % FS / Kelvin - Span: ≤ ± 0,02 % FS / Kelvin 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 - - Messzelle: Ceramic Al2O3 - Screw cap: POM - Sensor seal: FPM (Viton), EPDM, FFKM (Chemraz / Kalrez) Weight - Approx. 450 g with 5 m cable