Level sensors for plastic processing industry
October 2003
Level Measurement & Control
IFM Electronic is offering a range of capacitive level sensors specifically designed for the plastic processing industry. The M30 sensors reliably detect a wide range of plastics in different materials, grain sizes and surface characteristics despite differences in residual moisture and temperature. The highest EMC immunity level is achieved through the use of noise-immune electronics, and the sensors are sufficiently sensitive to detect pre-dried granules.
Optimum sensitivity adjustment to suit the medium is made automatically by means of a pushbutton. The front face of the sensor is rated for temperatures up to 110°C and it can be mounted in direct contact with the sight glass. The time consuming setting of an air gap is no longer necessary. Its mechanical structure makes the sensors especially immune to electrostatic discharges - which occur whenever plastics are conveyed.
The user has the choice between DC and AC units and the universal switching output can be programmed to be either NC or NO. Two highly visible LEDs on the side and back of the sensors clearly indicate the switching status.
For more information contact Chris Huxham, Shorrock Automation, 012 345 4449, [email protected], www.shorrock.co.za
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