RF Admittance Disc Level Switch
The RF Admittance Disc Level Switch is a highly reliable electronic point level sensor designed for accurate detection of bulk solids in blocked chutes, bins, silos, and material handling systems. It ensures uninterrupted plant operation by preventing material overflow, spillage, and process downtime.
Engineered for demanding industrial environments, this switch operates on RF admittance technology, making it immune to dust, humidity, material buildup, and vibration. With no moving parts, it delivers long-term stability, minimal maintenance, and consistent switching performance even in harsh operating conditions.
Product Share on :Applications
- Blocked chute detection in quarry and mining industries
- Bins, silos, and hoppers handling bulk solids
- Cement, fly ash, clinker, and construction materials
- Coal, minerals, ores, and aggregates
- Power plants, steel plants, and material handling systems
- Chemical and process industries
Working Principle
The RF Admittance Disc Level Switch works on the principle of capacitance measurement using RF admittance technology. When material comes in contact with or approaches the flush-mounted sensing disc, the dielectric constant around the sensor changes.
This change in capacitance is detected by the electronics, which then activates an output relay. The switch provides precise ON/OFF signals for high or low-level detection, ensuring reliable operation even with sticky, dusty, or abrasive materials.
Construction
The switch is housed in a robust cast aluminum enclosure with IP65 protection, suitable for harsh industrial environments. The flush-mounted stainless steel sensing disc forms an integral part of the chute wall, preventing material obstruction and wear. Insulation options such as UHMWPE or PTFE ensure compatibility with varying temperature and material conditions.
Installation
- Flush mounting on chutes, bins, or silos
- Available in integral or remote electronics configuration
- Fail-safe high or low level selection (field configurable)
- Simple installation with adjustable time delay settings
Technical Specifications
| System Type | Integral Type / Remote Type |
|---|---|
| Enclosure | Cast Aluminum, IP65 |
| Sensing Element | Stainless Steel (SS304) |
| Insulation | UHMWPE (70°C) / PTFE (200°C) |
| Supply Voltage | 230 VAC / 110 VAC / 24 VDC |
| Output | DPDT Relay – 5A @ 230 VAC / 24 VDC |
| Process Temperature | 0°C to 80°C (Integral) / Up to 180°C (Remote) |
| Process Connection | Flange 4" NB, ANSI 150# |
Key Features
- No moving parts – zero mechanical wear
- Unaffected by dust, humidity, or material buildup
- Flush-mounted design prevents flow obstruction
- Adjustable time delay and sensitivity
- Fail-safe high / low level selection
- Reliable and maintenance-free operation
