Anti Hanging RF Admittance Level Switch
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Anti Hanging RF Admittance Level Switch

The MG8610 series RF admittance level switch adopts RF admittance technology and applies unique circuits and three-terminal shielding technology. It not only has the single capacitance measurement function of the RF capacitor switch, but also can simultaneously measure impedance and integrate capacitance and impedance information together, reliably eliminating the influence of material hanging or scaling on the probe and container wall. It has the characteristics of wide range of use, long service life, maintenance free, simple and convenient installation, and high control accuracy.
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  • MG8610 Series

Product Features

RF Admittance & Three-Terminal Shielding Technology

The MG8610 employs RF admittance technology together with three-terminal shielding technology. It simultaneously measures impedance and capacitance, integrating both data streams to reliably eliminate the influence of material hanging and scaling on the probe and container wall.

Maintenance-Free with Long Service Life

Featuring a modular design with movable components that require no disassembly, the MG8610 offers a wide range of use, simple and convenient installation, and a long service life with virtually maintenance-free operation.

Universal Media Compatibility

Engineered for liquid level and solid level control—including flakes, powders, and particles—the MG8610 withstands highly corrosive media such as strong acids and alkalis. Its fluid-contact components are made of all stainless steel and lined with PTFE. Switching performance remains stable and is not affected by changes in medium density or temperature.

Dual Relay Output with Clear LED Indication

The output signal comprises two sets of normally open and normally closed relay contact switch outputs, suitable for flammable and explosive situations. A bright red/blue LED on the housing provides clear on-site indication, allowing operators to instantly distinguish between alarm and normal conditions.

Ruggedized Construction for Extreme Environments

Built with a high-pressure cast aluminum or stainless steel housing rated to IP67/IP68, the MG8610 resists moisture, vibration, and mechanical impacts. Wetted parts are available in 316L SST, titanium, Hastelloy C-276, and other corrosion-resistant alloys, ensuring long-term durability in demanding applications.

Certified Safety & High Control Accuracy

The MG8610 incorporates wiring error reverse protection and anti-RF interference circuitry, ensuring safe and stable operation. It delivers high control accuracy—±2 mm for conductive materials and ±20 mm for insulating materials—making it ideal for critical level control in petroleum, chemical, metallurgy, pharmaceutical, electric power, food, and papermaking industries.

Technical Specifications

General Specifications
Product

MG8610I RF admittance level switch (insulated probe, used for corrosive medium) 

MG8610N RF admittance level switch (naked probe) 

MG8610H RF admittance level switch (naked probe, used for high-temperature conditions)

MediumLiquid level and solid level (flake, powder, particle)
Case StructureSingle chamber
Case Material

High pressure cast aluminum or stainless steel

Dielectric Constant≥2
Viscosity≤0.4Pa·S
Cable Entry3/4"NPT
Material316LSST, 304SST, 316SST, titanium, 304LSST, tantalum, zirconium 702 alloy, Hastelloy C-276, 600 alloy , 400 alloy, 201 nickel, 20 alloy, Hastelloy C-22, 2507 duplex SST, PTFE lined anti-corrosion
Electric
Input Voltage24VDC or 220VAC, protection against polarity reversal.
Output Signal

Relay two sets of normally open and normally closed contact switch outputs (contact capacity 220VAC 5A, 24VDC 5A)

2-Wire system normal current 8mA, alarm current 16mA switch output

Damping2 Seconds
Power Consumption1W
Lightning  Protection DeviceMeet the requirements of EN61000-4-4 (GB/T17626.4) severity level 4 and  EN61000-4-5 (GB/T17626.2) severity level 4
Ambience
Operation Temp.

MG8610I -112~446℉ (-80~230℃)

MG8610N -112~662℉ (-80~350℃)

MG8610H -112~851℉ (-80~455℃)

Ambient Temp.-40~176℉ (-40~80℃)
Storage Temp.-40~176℉ (-40~80℃)
Humidity0~100% Relative humidity
Pressure
Operation Press.

0~63bar (0~6.3MPa)

Measurement Performance
AccuracyConductive material ± 2mm, insulating material ± 20mm
The error caused by every 1 ℃ change in ambient temperature is less than 0.01% of the measurement distance
Monitor/Local Indicator
Process DisplayLED red/blue indication
Probe
Probe LengthProbe outer diameter 0.3 "(8mm), length 3.9" to 118 "(100-3000mm)
Machinery
Material316LSST, 304SST, 316SST, titanium, Hastelloy C-276, montmorillonite, graphite materials, etc
ThreadThread size 1"NPT
SealingFactory sealing
Ingress ProtectionIP67/IP68
EMCIf installed in a metal container or stationary tube, in accordance with EN61326-1 (1997), the revised provisions specifically for Class A1A equipment in the workplace


Product Application

The MG8610 Series RF Admittance Level Switch is designed for reliable level control of liquids, slurries, powders, solid particles, and blocky materials in both open and pressurized vessels. Featuring maintenance-free operation, RF admittance technology, and three-terminal shielding, it provides accurate switching signals by simultaneously measuring impedance and capacitance while eliminating the influence of material hanging and scaling. With IP67/IP68 protection and wetted parts available in 316L stainless steel, titanium, or Hastelloy C-276, the MG8610 is ideal for corrosive, high-temperature, and flammable industrial environments.

Oil & Gas Industry

In oil and gas processing, the MG8610 is used for level control in storage tanks, separators, and process vessels containing petroleum, liquefied gas, and hydrocarbon mixtures. Its relay output design is suitable for flammable and explosive atmospheres. It also enables storage tank dehydration for oil-water separation and liquefied gas-water separation in spherical tanks.

Key advantages:

  • Suitable for both conductive and insulating liquids

  • Interface control for oil-water and liquefied gas-water separation

  • Wetted materials: 316L SST / titanium / Hastelloy C-276

Chemical & Petrochemical Industry

In chemical processing, the MG8610 handles level detection of aggressive media including acids, alkalis, and corrosive solvents. The three-terminal shielding technology eliminates the influence of material adhesion and scaling, while the all-stainless-steel construction lined with PTFE ensures exceptional corrosion resistance. It performs reliably in reactors and mixing tanks where slurry and viscous media are present, and supports interface control for electrostatic desalination.

Key advantages:

  • Corrosion-resistant wetted parts: 316L / titanium / Hastelloy C-276

  • Immune to material hanging and scaling

  • Operating pressure up to 6.3 MPa (63 bar)

Food & Beverage Industry

In food and beverage production, the MG8610 monitors liquid levels in tanks containing beverages, beer, and aqueous solutions. The stainless steel sanitary construction and maintenance-free design meet strict hygiene requirements, while the clear LED red/blue indication simplifies on-site monitoring and allows operators to instantly distinguish between alarm and normal conditions.

Key advantages:

  • 316L stainless steel hygienic construction

  • Maintenance-free with long service life

  • Clear LED red/blue on-site indication

Metallurgical Industry

In metallurgical processes, the MG8610 provides solid level control for coal particles, chemical raw materials, ores, and limestone. The MG8610H variant with naked probe is engineered for high-temperature conditions up to 455°C, making it ideal for extreme thermal environments. Its high-pressure cast aluminum or stainless steel housing withstands mechanical impacts and temperature shocks during transport and installation.

Key advantages:

  • Wide temperature range: up to 455°C (MG8610H)

  • Suitable for powders, particles, and blocky bodies

  • Protection grade IP67/IP68

Pharmaceutical Industry

In pharmaceutical manufacturing, the MG8610 ensures precise level control for medicinal liquids, solvents, and raw material storage. The high control accuracy of ±2 mm for conductive materials meets stringent process requirements, while the PTFE-lined anti-corrosion construction handles aggressive cleaning agents and media. The modular design with movable components requires no disassembly, simplifying maintenance.

Key advantages:

  • High control accuracy: ±2 mm for conductive materials

  • PTFE-lined anti-corrosion construction for acids and alkalis

  • Modular design with movable components without disassembly

Electric Power & Water Treatment Industry

In power plants and water treatment facilities, the MG8610 monitors liquid levels in urban drainage, factory waste liquid, and various aqueous solutions. It enables reliable interface control for electrostatic desalination and storage tank dehydration, effectively separating oil from water or liquefied gas from water. The instrument incorporates reverse-polarity protection and anti-RF interference circuitry for safe operation.

Key advantages:

  • Reliable interface control for mixed liquids

  • Reverse-polarity protection and anti-RF interference

  • Suitable for water treatment and sewage treatment applications

Pulp & Paper Industry

In pulp and paper production, the MG8610 controls the level of slurries and viscous media. The RF admittance technology reliably eliminates the impact of fiber adhesion and scaling on the probe and container wall, ensuring continuous accurate switching in demanding process conditions. Its wide range of use and long service life make it a cost-effective solution for pulp tanks and process vessels.

Key advantages:

  • Specifically designed for slurry and viscous medium control

  • RF admittance technology eliminates hanging material influence

  • Long service life with maintenance-free operation


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chunhua.zhang@mega-tek.cn
hemin@mega-tek.cn
No.618, Kelin West Road, Wenjiang District,
Chengdu, Sichuan Province, China

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