MPX Float Sensor

Engineering & Marketing International

Monitor liquid levels with a float level sensor and a ControlByWeb® module. Receive text/email alerts when a user-specified level is reached. Log and graph a tank’s level data over time.

  • Max Length: Up to 32ft. (175.25m)
  • Modbus RS-485
  • 4-20mA, 2-Wire
  • External Power: 12-24 VDC

Float Sensor – Liquid Level Switch

Monitor liquid levels with a float level sensor and a ControlByWeb® module. Receive text/email alerts when a user-specified level is reached. Log and graph a tank’s level data over time.

How do Float Sensors Work

Magnetostrictive liquid level sensors consist of a float that moves up and down a stem, or rod. The float contains a permanent magnet, and the stem houses a wire waveguide that creates a magnetic field, making it possible to detect the floats position on the stem.

An electrical pulse travels down the waveguide, magnetizing it. When the pulse meets the magnetic field from the float, a vibration, also called a strain pulse, travels back to the sensor housing.

The Float sensor or liquid level switch then measures the difference in time between the initial pulse, and the strain pulse, giving it an accurate and continuous reading of the tank’s current level.

Liquid Types

Float Level Sensors work well with clean and dirty liquids, as they are customizable for almost any application.

Float Sensor Benefits

  • Simple measurement principle.
  • Provide the most reliable and accurate method of level monitoring.

Sensor Ranges

  • MPX float sensors are customizable for monitoring up to 32 ft with multiple float sensors.

Sensor Accuracy

  • Sensors are accurate within 0.05% of its detected range.

Sensor Specifications

  • PERFORMANCE 
    • Max Length: Up to 32ft. (175.25m)
    • Accuracy: Greater of ±0.04 in. (±1mm) or 0.05% of full range
    • Resolution: Modbus ±0.04 in. (±1mm) 4-20 mA: 14 bit DAC
    • Operating Temp: -40°F to 180°F (-40°C to 80°C)

 

  • OUTPUTS 
    • Modbus RTU (RS-485) with Temperature output
    • 4-20mA, 2-Wire
    • Dual 4-20mA (Loop-Powered 3 wire)
    • Call to configure

 

  • ELECTRICAL
    • External Power: 12-24 VDC

 

  • APPROVALS
    • Protection Rating: NEMA 4X, IP65
    • Certifications: Class 1 Division 1 Groups C & D, Class 1 Zone 1, Class 1 Zone 2

 

  • INTERNET CONNECTIVITY
    • NO CLOUD NEEDED! Remote connection available with ControlByWeb devices

 

  • PROGRAMMING
    • Automatic programming via ControlByWeb device
    • SENSOR MATERIALS
    • Housing: Cast aluminium, epoxy coated
    • Cable Length: Customizable
    • Dual-Level: Monitor two liquid levels with a single sensor

 

  • ENVIRONMENTAL
    • Operating Temp: -40°C to 85°C

 

  • INSTALLATION
    • Top of tank | Simple to install and program