Side Mounted Magnetic Level Switch

The Side Mounted Magnetic Level Switch is made for mounting horizontally on tanks and vessels where it works to monitor level changes by using a float with magnets, which will trigger the switch at the pre-set point of level change.

Being sealed magnetically, the switch ensures isolation between the process fluid and the electronic circuitry, ensuring reliable switching actions.

Chemical tanks, fuel storage tanks, and utility installations can use the device, which comes in SS316 construction with many additional features including flange type and explosion-proof models.

• Passive output contact with no external power supply required.
• Long service life with stable and reliable operation.
• Easy installation with minimal maintenance.
• Independent of the physical and chemical properties of the liquid.
• Suitable for media with density ≥ 0.5 g/cm³.
• Can be used for interface detection between two liquids of different densities.
• Available in explosion-proof design.
• SPDT or DPDT dry contact output.

• Application: Liquids
• Liquid Density: Above 0.5
• Liquid Viscosity: Up to 500 cP
• Operating Pressure: Up to 40 Kg/cm²
• Operating Temperature: Up to 350°C

Installation of Horizontal Device and Float Movement

The Side Mounted Magnetic Level Switch device is installed horizontally in side of the tank or vessel and a float within the chamber moves either upwards or downwards based on the liquid level change.

Movement of Float Around Pivot Point

Due to the increase or decrease in the liquid level, the float movement results in the rotation of the arm around its pivot point. In case of corrosion resistance applications, the SS316 material option is available.

Magnetic Transfer Signal

The permanent magnet fitted in the float system rotates in accordance with the float. The magnetic movement is transmitted to the sealed chamber wall without any physical contact between the liquid and electronic parts.

Activation of Switch by Magnet

On attaining the set point liquid level, the magnetic movement triggers the switch mechanism and micro-switch alters its contacts’ positions and sends out an electric signal.

Output Signal of the Switch

The output signal from the switch can be utilized for high and low-level alarms, pumps and valve controls, etc.

Installation & Mounting Styles

• Square Flange Connection: Standard side-mounted arrangement with a compact square profile flange.
• Screwed Connection: Threaded integration option via BSP or NPT male connections.
• External Cage Mounting: External chamber housing layout for isolation and maintenance without process interruption.

Materials of Construction (MOC)

• Wetted Parts & Float Metallurgy: SS304, SS304L, SS316, or SS316L stainless steel options.
• Chemical Protection: High-grade Polypropylene (PP) or PTFE (Teflon) lining options for aggressive media.

Operating Parameters

• Liquid Density Threshold: Configured for fluids with a specific gravity of 0.5 g/cm³ or higher (supports interface detection between two different densities).
• Fluid Viscosity Limit: Capable of tracking media profiles up to 500 cP.
• Design Pressure Ratings: Mechanical assembly rated up to 40 Kg/cm² (extendable up to PN160 / PN320 for custom high-pressure applications).
• Design Temperature Range: Thermal tolerance rated from -40°C up to 150°C (with premium configurations extending up to 350°C).

Process End Connections

• Flanged Interface: Fabricated to match international ASA, BS, or DIN standards.
• Screwed Interface: Male/Female BSP or NPT threaded configurations.

Switch & Electrical Enclosures

• Switch Contact Configurations: Micro SPDT or DPDT options.
• Contact Contact Forms: 1 NO + 1 NC or 2 NO + 2 NC dry contacts.
• Electrical Contact Rating: 5 Amp at 230 VAC passive output.
• Enclosure Security Ratings: Weatherproof IP65 housing or certified Explosion-proof / Flameproof enclosure.
• Detection Thresholds: Supports multi-point level detection with up to 8 independent signal tracking points.

Fluid Isolation: Side Mounted Magnetic Level Switch employs an isolated magnetic coupling mechanism which separates the process fluid from the electrical components; hence, ideal for applications with volatile and hazardous fluid levels.

Durable Structure: With SS316 structure available, this switch is made for use in applications dealing with corrosive process fluids, pressure conditions, and tough process environment.

Level Control: The switch gives immediate level indication and is ideal for high or low-level alarm, pump operation, and process shut-off.

Reliable Electrical Switching: Provided with robust microswitch contacts, this level switch offers consistent electrical switching signals.