Float type level switch

Product catalog summary

Overview
FB-5000 is a float type level switch designed for installation at the side of a tank or through an external chamber. It uses a float to follow the liquid level, activating an integrated reed switch via magnetic coupling when the liquid reaches a set point. This switch can be used for controlling pumps, valves, or alarms for safety and automation in various processes.

Features

Compact and durable design
Magnetic coupling ensures perfect isolation between process and electric compartment
316SS liquid wetting parts for high anti-corrosive capability
High pressure rating
Easy handling and installation

Model Code
The model code includes options for connection type, enclosure, material, and switch action. Specific codes are provided for different configurations, such as screw or flange connections, watertight or flameproof enclosures, and intrinsically safe options.

Standard Specifications

Measuring object: Liquid with a density of 0.7g/cm³ (special design available for 0.4g/cm³)
Max operating pressure: 2MPa
Max liquid temperature: 90°C
Installation: Standard tank side or optional external chamber
Switch action: Factory set to close for increase or decrease
Reset span: Max 6mm (fixed)
Contact: Reed switch (SPST) with AC 10VA, DC 10W capacity
Enclosure: Watertight, pressure tight flameproof, or intrinsically safe
Cable entry: Standard G1/2 thread with optional watertight or flameproof gland
Material: Float and rod made of SUS316, housing of SCS14, cover of AC2A

Dimensions
Dimensions are provided for different connection types, with specific terminal screw sizes and applicable crimping terminals.

Switch Action

HC: Close for increase
HO: Open for increase
LO: Open for decrease
LC: Close for decrease

Installation Suggestions

Bolt, nut, and gasket provision is the customer's responsibility.
For tank nozzle installation, the nozzle's inside diameter should exceed 41 mm, aligning with the level switch axis.
For connections involving lamps, motors, or long cables, surge suppressors or a relay driver are recommended to protect the reed switch contact.

Contact Information
Marketed by Malema Sensors, Boca Raton, FL, USA. Contact via phone, fax, or email for further inquiries.