Differential and Low Range Pressure Transmitters

The Keller PD39X series differential pressure transducer is designed to indirectly measure differential pressure by using two absolute pressure sensors providing a more robust sensor in relation to unbalanced pressures that transducers using a single sensor. Differential pressure ranges between 0-3 and 0-300 bar are available with output signal options of 4-20mA and 0-10V. These units also have an RS485 output in addition to the standard analogue outputs. Typical error band ≤0,05 %FS typ. (linearity, hysteresis, repeatability and temperature effect

The PR41X series are designed for measuring very low pressure values in the mBar or µBar ranges. The Series 41X capacitive pressure transmitter from Keller combines a ceramic measurement cell for low pressure ranges with the µP electronics of the digital series 30 transmitter. The pressure values from the signals of the pressure and temperature sensors are determined by polynomial compensation. The values can be displayed and stored on a PC via an RS485 interface and programming can also be carried out. Analogue outputs are scaleable within the sensors range using the CC30 software and options are available for 4-20mA or 0-10V.