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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.
- Allrounder for nearly all types of bulk materials in all applications.
- Simple, automatic calibration at commissioning.
- Easy Access to the paramaters via display and Buttons.
- Measurement of low DK values (from 1.5).
- Active Shield Technology against material build-up.
- Continuous self-diagnostic probe function.
- Complete with EHEDG hygiene approval.
- Suitable for use in applications with high pressure - up to 25bar and with temperatures up to 240°C.
- Electronics housing made of plastic or die-cast Aluminium, Schutzart IP 66.
- Approvals for hazardous Locations (gas and dust-Ex).
- Flameproof enclosure available for use in explosive gas atmospheres.
- Housing: Aluminium oder Kunststoff PA6, IP66
- Certificates: ATEX, IEC-Ex, FM, FMc, EHEDG
- Shaft length: Rod version max. 2500mm, cable version max. 20.000mm
- Active Probe Diameter: Rod version 10mm, cable version 4mm
- Horizontal Rod Version: max. 125Nm
- Vertical Cable Version: max. 4KN
- Process Temperature Range: -40°C to +240°C
- Pressure Range: -1bar to +25bar
- Sensitivity: DK-Value >=1,5
- Process Connection: M30, M32, G1", G1¼", G1½", NPT¾", NPT1", NPT1¼", NPT1½", Triclamp 1", Triclamp 2", flange DN100 PN16, other flanges available
- Process Connection Material, Probe: 1.4301 (SS304) / 1.4305 (303) or 1.4404 (316L); isolation PPS FDA and 1935/2004/EC conformity
- Supply Voltage: Relay DPDT 21 .. 230V AC / 21 .. 230V DC 50-60Hz
- Switchable Signal Output: FSH / FSL integrated with all electronics
- Signal Delay: Integrated adjustable time delay of the signal output
- Remoteversion: Cable length between probe and electronics max. 20,000mm