Capacitance Point Level Switch (LMC)

Wetted PartsSS-304, SS-316, SS-316L, PTFE, part ceramic
Process ConnectionNPT / BSP 1", 1¼", 1½", 2" etc Flanged : ANSI/JIS/DIN/ASA/custom
Probe Insertion LengthRigid Rod - 50mm to 3,000mm, Flexible Rope - 100mm to 20,000mm
Ambient Temp.-20°C ... 70°C (-4°F ... 158 °F)
Supply TypeExporter, Supplier, Retailer
Preferred Buyer Location India, Benin, Egypt, South Africa, Argentina, Brazil, Canada, Mexico, United States, Afghanistan, Bahrain, Bangladesh, China, Hong Kong, India, Indonesia, Iran (Islamic Republic of), Iraq, Israel, Japan, Jordan, Kuwait, Malaysia, Nepal, Oman, Pakistan, Philippines, Saudi Ara bia, Singapore, Korea, Republic of, Sri Lanka, Syrian Arab Republic, Taiwan, Thailand, Turkey, United Arab Emirates, Viet Nam, Yemen, France, Germany, Greece, Italy, Netherlands, Poland, Romania, Russian Federation, Spain, Ukraine, United Kingdom, Australia, New Zealand

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Vibration TestAs per IEC 60068 part 2-6 sinusoidal, 10-55Hz, 0.15mm
Process Pressureabsolute / max. 15 bar
Process ConnectionNPT / BSP 1", 1¼", 1½", 2" etc Flanged : ANSI/JIS/DIN/ASA/custom
Process Temp.-20°C ... 100°C (-4°F ... 212°F)
Min. Dielectric Constant1.6 (non-hygroscopic)
Ambient Temp.-20°C ... 70°C (-4°F ... 158 °F)
Extended Process PTFE Insulation Temperature-30°C ... 250°C (-22 °F ... 482 °F)
Extended Process Ceramic Insulation Temperature-30°C ... 600°C (-22°F ... 1,112°F) (extensions & heat sinks required)
Wetted PartsSS-304, SS-316, SS-316L, PTFE, part ceramic
Probe Insertion LengthRigid Rod - 50mm to 3,000mm, Flexible Rope - 100mm to 20,000mm

Operating Principle :

Earth Extension (body) Sensing Rod
The capacitance is formed by the sense rod and earth extension.
When no material is present, the capacitance is analogically a multiple of probe dimension and dielectric constant of air {ε(air) ≈ 1}.
When material is present, the capacitance gets multiplied by dielectric constant of the material.
This variation in capacitance is then translated into switching output by the device.

Features :

Fast Switching Response
High temperature endurable probes
Single sensor allows pump-control & multi-point switching
Easy calibration with or without material
Remote electronics with std 10 meters cable length
External indication LED available
Threaded & Flanged Mountings
Electronic Inserts support all requirements
Ingress protection : IP 68/65 (as per IS-13947)
Ex-proof (Ex d T6 IP-66 IIC )
- Flameproof as per IS/IEC 60079-1:2007
- Weatherproof (IP-66) as per IS/IEC 60529:2001
- Suitable for Gas Group : IIC
- Suitable for Zone 1 & 2 atmospheres

Applications :

Capacitance type level limit switch used as a full, empty and demand alarm in containers, hoppers, silos containing bulks and powders of various types.
Typical applications - water, waste water, cereals, beans, edible oil process, animal feed, rice plants, soya plants, dye powder, chalk, gypsum, fly-ash, cement, sand, plastic granules, spices, milk powder.