Level Instruments

RF ADMITTANCE TYPE LEVEL SWITCH

RFLS 01

RFLS 01

Product Description

RFLS-01 RF Admittance Type Level Switch is designed for reliable point-level detection of liquids, powders, and bulk solids using advanced frequency sweep technology. It operates by learning the dielectric and conductivity signature of the media, ensuring accurate detection even with coating, buildup, or varying material properties. The switch supports media with dielectric constant εr > 1.5 and requires no calibration for liquid fork simulation, making commissioning simple. Featuring a compact design with two independent PNP outputs and multicolour LED status indication, it enables clear local diagnostics. The RFLS-01 operates across a wide process temperature range of –40°C to 125°C and withstands process pressure up to 100 bar. With IP-66 / IP-68 protection, fast response time, and maintenance-free operation, it is ideal for demanding industrial environments. 

Product Parameters

Configure the transmitter and electronics based on application, environment, and compliance requirements.

Radiated signal

50- 300 MHz

Process connection

1" NPT, 1 ¼" NPT, 1 ½" NPT, 2" NPT, 1" BSP, 1 ¼" BSP, 1 ½" BSP, 2" BSP,

Process Temperature

-40°C to 125°C

Protection Class

IP-66, IP-68 (As per IS13947)

Media Pressure

Max. 100 Bar

Installation

Any position

Power Supply

18 to 36 V DC

Output (Active)

Max. 50mA and 100mA (configurable) short-circuit and high-temperature protected

Output Type

PNP Type

Output Polarity

No & NC

Off leak current

±20μA Max.

Reverse polarity protection

Yes

Reaction time

0.1 sec. (100 mS)

Repeatability

±1 mm

Cable

5 to 10 meters, 4 wire + shield

Note : This product is meant for laboratory/Process application only and not for custody transfer application.

Need more technical details?

Download the complete product catalogue for detailed specifications, dimensions, certifications, and application guidance.

Applications

Electronet instruments are widely deployed across multiple industries and utilities for reliable monitoring and control of critical process parameters.

Industry Key Applications
Water & Wastewater Level detection of liquids in tanks and treatment systems, including sludge and wastewater
Chemical & Petrochemical Monitoring liquid and slurry levels in reactors, storage tanks, and chemical process vessels
Oil & Gas Level detection in storage tanks, separators, and pipelines, including viscous fluids
Power Generation Boiler, condensate, and chemical tank level monitoring for process safety
Food & Beverage Liquid, slurry, and ingredient level detection in production lines and batch processes
Pharmaceuticals & Biotechnology Monitoring process vessel and bioreactor levels, including viscous or mixed liquids
Pulp & Paper Industry Level detection of chemicals, water, and slurry in pulping and bleaching tanks
Marine & Shipbuilding Fuel, water, and lubrication tank level monitoring, including difficult liquids
Metals & Mining Level detection in slurry tanks, chemical tanks, and storage vessels
HVAC & Building Automation Liquid level monitoring in heating, cooling, and water storage systems

Key Features

Core capabilities and advantages of the product.

  • Frequency Sweep for material type detection
  • Compact design with two independent outputs
  • Suitable for media distinction
  • Liquid fork simulation requires no calibration
  • Process temperature -40°C to 125°C
  • Suitable for materials with dielectric constant r >1.5
  • Multicolour LED switch indicator
  • Maintenance free
  • PNP output with Multicolor LED switch indicator
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