APG Explosion Proof Magnetostrictive

APG Explosion Proof Magnetostrictive

APG Explosion Proof Magnetostrictive | Float Level Transmitter MPX-E/R

The MPX Series Magnetostrictive Level sensor provides highly accurate and repeatable level readings in a wide variety of liquid level measurement applications. The MPX-R’s large, buoyant, and robust float allows it to be used in harsh applications where fouling or buildup might otherwise be of concern. The MPX-E’s lighter weight design allows it to be used in applications where space is limited. The MPX-E Chemical has a chemical resistant coating, allowing for use in corrosive, acidic, and marine environments. And the MPX-F’s flexible stainless steel stem allows for installation in tall tanks without needing a crane.

Extreme accuracy for extreme environments. The MPX-E’s light weight design makes it ideal for applications where space is limited, while the MPX-R’ s large, robust floats and stem make it ideal for harsh applications where fouling or build up might be a concern. The MPX magnetostrictive liquid level probe is very accurate and tough as nails. It's also an ideal solution for taking two measurements: both the interface level measurement and a total volume.

Modbus Output

The RS-485 Modbus RTU output makes the MPX compatible with any Modbus controller or PLC. It also simplifies wiring dramatically.

Tank Cloud Compatible

The MPX liquid level sensor is a Tank Cloud slave sensor, able to communicate via the Internet with the addition of an LOE Master sensor or an RST-5003 module.

Durable & Compatible

This liquid level sensor is built to take a beating - designed for high turbidity environments in hazardous locations. It also has several materials options for the stem and floats for maximum chemical compatibility.


  • Class 1 Division 1 Groups C & D, Class 1 Zone 1, Class 1 Zone 2
  • Highly accurate and repeatable readings
  • 4-20 mA, RS-485 (Modbus RTU) output
  • Rugged and reliable, lengths up to 32 feet (9.75 m)
  • Dual level (interface) measurement
  • Tank volume/level, strapping table


  • C I, D 1 Hazardous Locations
  • Storage Tanks (All Sizes)
  • Fuel Tanks
  • Oil/Water Interface Measurement
  • Thick, Viscous, Sludgy Fluids
  • Industrial Effluent
  • Power Generation
  • Water and Wastewater Treatment



AccuracyGreater of ±0.04 in. (±1mm) or 0.05% of full range
ResolutionModbus: ±0.04 in. (±1mm)
 4-20 mA: 14 bit DAC


Supply Voltage12-24 VDC
Maximum Current DrawModbus MPX-E: 25 mA
 Modbus MPX-R: 28 mA
 4-20 mA Single: 22 mA
 4-20 mA Dual: 44 mA


HousingCast aluminium, epoxy coated
Stem304 SS or 316L SS
Stem LengthMPX-E: 1 - 12.75 ft. (0.3 - 3.9 m)
 MPX-R: 4 - 31.5 ft. (1.22 - 9.60 m)

Ref: apgsensors.com

Download Data Sheet: Explosion Proof Magnetostrictive Float Level Transmitter MPX-E/R