Hanla FMS-2H-WS-T Horizontal Float Level Switch

The Hanla FMS-2H-WS-T is a horizontal float level switch that is located on the side and is made to find point levels. It works on a simple but effective principle: when the liquid level goes up or down, the float moves, which turns on a microswitch with a permanent magnet.

This horizontal float level switch is made to work in marine and industrial settings where there is a lot of vibration, corrosive salt air, and high pressure. The FMS-2H-WS-T is a tough, set it and forget it option for managing high-level alerts or automating pump automation. Its magnetic connection system keeps the electrical parts fully separate from the process liquid, which eliminates leaks and short circuits that happen with lower-quality mechanical seals.

Technical Data

Features:

1) Magnetic Coupling Reliability: The switch is turned on by a magnetic drive that doesn’t touch it, thus there is no need for bellows or seals that wear out over time.

2) Explosion-Proof Options: Built to meet strict maritime class safety standards for use in unstable conditions.

3) Marine Grade Durability: Made of high-quality stainless steel (SUS304/316) that won’t rust in seawater or fuel oil.

4) Easy to Care For: You can check or change the internal switch mechanism without taking the flange off the tank.

5) Flexible Switching: It has an SPDT contact setup, which lets you use both Normally Open and Normally Closed wiring logic.

Applications:

• Bilge & Ballast Tanks
• Fuel Oil Service Tanks
• Lubricating Oil Systems
• Boiler Feed Water
• Waste Water Treatment

Our Engineer Expert’s Installation Tips:

-> Orientation is important: Make sure to follow the Top marking on the flange exactly. The float logic will be flipped if it is put upside down, which could cause the tank to overflow.

-> Protection against turbulence: If you’re putting this in a tank that has a lot of agitation (like a mixing tank), I strongly suggest using a stilling well to keep the switch contacts from chattering, which will burn out your pump contactors.

-> Cable Gland Integrity: Always use a brass cable gland that is made for maritime use and make a drip loop in your wire. This stops condensation from flowing down the cable and getting into the switch housing.