Limit detection is required in most silos and containers to avoid overfilling or unnecessary downtime. This means that the sensor needs to handle a variety of process conditions within a wide range of industries. This, for example, can be high temperatures and aggressive media in filters or reactors, or very light materials such as styrofoam in the processing or storage stages, and in the promotion of silica.
So in meeting all the conditions that are presented we are able to offer an appropriate sensor for each application.
Rotary Paddle Level Switch
Depending on the requirements, the Rotonivo® rotary paddle switch is used as a full, demand or empty detector in storage silos or process vessels and is suitable for use in almost all solids. With its simple electromechanical measuring principle it can also be adapted for extreme process conditions.
A motor driven shaft causes the vane to rotate. Once the material level reaches the vane, thereby preventing further rotation, this creates a torque, which is converted via a switch to an electric signal. Once the vane is free again of the material, the output signal is reset and the motor driven shaft rotates again.
This reliable and maintenance-free limit switch for safe level detection in bulk solids has international approvals for use in gas and dust hazardous areas and is also certified to SIL 2.
Vibranivo® - Vibrating fork
Vibration Level Limit Switch
The Vibranivo® - vibrating fork, with its robust stainless steel extension and high sensitivity, is widely used in storage silos and process vessels.
The Vibranivo® is robust, easy to operate and can, via its series range, be precisely configured for each application.
Electronically stimulated piezos cause the fork to vibrate. As soon as the sensor is covered with material, the vibration is dampened and the resulting electrical current change causes the output signal to switch. Once the material level falls below the sensor, it is free to vibrate again and the output signal is reset.
International approvals for use in hazardous locations (gas and dust).
Vibration Level Limit Switch
Mononivo® single-rod limit switches are suitable for many applications within the bulk material handling industry as a full, demand or empty detectors for use in storage and process containers.
Electronically stimulated piezos cause the probe to vibrate. As soon as the sensor is covered with material, the vibration is dampened and the resulting electrical current change causes the output signal to switch. The oscillation action of the probe ensures a certain amount of self-cleaning.
The Mononivo® carries international approvals for use within explosive/dusty atmospheres. The robust stainless steel shaft and the device's high sensitivity make it an all-purpose limit switch.
Capacitive Level Limit Switch
The Capanivo® level limit switch can be used in many solids and liquids as a full, demand or empty detector.
The robust, glass reinforced PPS (Polyphenylene Sulfide) sensor is even suitable for food applications whilst also resistant to many forms of aggressive material. The Capanivo® can be used in storage and process vessels, or in pipes, as a limit switch and spillage detector.
The electrodes in the sensor make up a condensator. As the level of the material changes, the capacitance changes as well. The integrated electronics evaluate the change in capacity and convert it to a switching signal.
The Capanivo® has approvals for hazardous Locations (Dust Ex) and is therefore suitable for use in most industries as a limit switch.
Capacitive Limit Switch
The RFnivo® level limit switch is universally applicable in solids and liquids as a full, demand or empty detector in silos and containers. The different device versions withstand extreme process conditions and due to their stainless steel components, are very robust.
The RFnivo® measures the capacitance between the probe and container wall. If the probe is covered by the product, the measured capacitance changes and a switching signal is activated.
Since each container is different in geometry, the RFnivo® must be calibrated after installation. This is done automatically once the supply voltage has been connected or by pressing the calibration button on the unit.
All versions of this device are complete with "Active Shield Technology" which ensures the probe is insensitive to any material build up or caking. This ensures complete reliability of the probe.
International certifications for Hazardous Locations (gas and Dust Ex) ensure the device is suitable for a wide range of applications in all industries.
Sensor Measurement | Test & measurement, Instrumentation & Sensors
Sensor Measurement is a wholly Western Australian owned and operated company established in 1988.
We supply high-quality instrumentation, sensors for automation, machine safety and connectivity ...