HEM12E with Electronics – Potentiometric Linear Sensor

The mechanical detection of linear movement is done by a magnetic drag. Due to magnetic coupling the drag pulls the wiper sled inside the tube which contains the resistive sensor element. This inside cursor construction provides wireless movement of the magnetic drag and pretends ingress of dirt or dust to the sensor element. On that way IP67 protection is reached for rough environmental conditions. For easy and space saving installation the tube contains a flange construction in fitting gauge or with thread. The flange permits also installation in hydraulic cylinders with pressures up to 250 bar (450 bar peak). To ensure high accuracy and long lifetime for a good price performance ratio the potentiometric measuring principle is realized with a high-resolution conductive plastic resistance element. For facilitating electronic integration the HEME series is equipped with an electronic signal converter board inside the flange head. Instead of delicate reference voltage a simple 24VDC±20% power supply can be used. The analog signal is provided in the typical form with 4…20mA. In comparison to the pure potentiometric transducer the E-version keeps quite well the true power on function and temperature stability and is EMC approved. The dimensions of the HEME version is only changed in the 5mm longer flange head to the standard version

Special Features

• Easy electronic integration with 24VDC power supply 4 .. 20 mA output signal
• Economic and proved potentiometer technology with conductive plastic
• Space saving cursor construction
• Easy mechanic coupling by flange connection
• Flange construction suitable for hydraulic applications
• Long life time