RF admittance level switch

The RF admittance level switch replaces capacitance measurement with more advanced RF admittance technology, solving the problem of material adhesion. Compared with other similar products, it has higher system stability and can work reliably even under extremely harsh field conditions. It is not affected by hanging materials, temperature, pressure, density, humidity, or even changes in material chemical properties, and has reliable performance. It is widely used for level measurement of media such as ash powder, mortar, cement clinker, coal powder, etc.

◆ It can measure liquid level and material level, and meet the measurement requirements of different temperatures, pressures, and media.

◆ Not affected by sensor hanging, no need for regular cleaning, to avoid measurement errors.

There are no movable parts during the measurement process, and there is no issue of mechanical component damage.

◆ No maintenance required, intelligent adjustment free.

◆ Contact measurement, with strong anti-interference ability, can overcome the influence of steam, foam and agitation on measurement..

Diversified measurement quantities make measurements more accurate, unaffected by environmental changes, and have high stability.

The product has reliable performance and a long service life.

Power supply: 220 ± 25VAC, 50/60Hz, maximum 5W; 24VDC optional

Output method: DPDT relay output (double pole double throw)

Contact capacity: 230VAC/5A no sensitivity, 3A sensitivity

Repeatability: Conductive medium: 2mm; Insulation medium: 50mm

Shell material: Explosion proof cast aluminum or ABS

Explosion proof area: All groups of cables and sensing elements in Zone 1 and Zone 2 are intrinsically safe and explosion-proof

The circuit units inside the explosion-proof enclosure are explosion-proof in all groups of Zone 1 and Zone 2

Protection level: IP68

Sensor material: Please refer to the selection table for details

Installation of sensor components: R3/4 thread (standard), flange installation (optional)

Cable interface: M20×1.5

Cable length: The cable between the split electronic unit and the sensor is provided by the manufacturer, with a standard length of 3 meters

Output insulation: signal line to sensor greater than 1000V

Conductive and insulating liquids: Chemical, oilfield, water and sewage treatment

Conductive and insulating pastes: Paper making, pharmaceuticals, water and wastewater treatment

Powder: ash, powder, power plant, metallurgy, cement

Particles: coal, grains, power plants, metallurgy, grains

Interface: Two different liquids... oilfield, chemical industry

·Electronic component housing type A: plastic PBTP

·Electronic component housing type B: die cast aluminum

·Sensor probe type B: stainless steel extended rod type with a maximum length of 3M and a minimum length of 0.4M

·Sensor probe type C: Steel cable type with a maximum length of 35M and a minimum length of 0.5M

·Protective electrode probe: standard 100mm or 300mm

The radio frequency admittance level switch, also known as the radio frequency admittance level meter, has a sensitivity adjustment potentiometer W1. The LED dual color display light is green when there is no material and red when there is material. After the instrument is powered on, the green light will turn on when the level is lower than the set value. At this time, slowly adjust potentiometer W1 clockwise until the red light just turns on. Then turn it counterclockwise for 3 turns (0.5-3 turns for non-conductive materials and 5-7 turns for conductive materials) and the green light will turn on (the contact state of the output relay should also change with the change of the red and green light display status). The material coverage of the measuring part of the sensor should be around 75mm according to different media.