Explosion Proof Magnetostrictive Float Level Transmitter
Explosion Proof Magnetostrictive Float Level Transmitter - Image 2
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Explosion Proof Magnetostrictive Float Level Transmitter

MPX-E/R

Extreme Accuracy For Extreme Environments

The MPX-E/R Explosion Proof Magnetostrictive Float Level Transmitter offers extreme accuracy and durability for hazardous environments. The MPX-E’s lightweight design is perfect for tight spaces, while the MPX-R features large, robust floats and stems ideal for harsh conditions prone to fouling or buildup. This reliable liquid level probe measures both interface levels and total volume accurately, making it perfect for industrial applications.

The MPX sensor features a Modbus RTU RS-485 output, ensuring compatibility with any Modbus controller or PLC and simplifying wiring. It is also compatible with Settler and Explorer, enabling remote monitoring via the Internet.

Designed for high turbidity environments in hazardous locations, the MPX sensor offers multiple material options for the stem and floats to ensure maximum chemical compatibility. It is ideal for industries such as oil and gas, petrochemical, water and wastewater treatment, and more.

  • Low-Level Fuel-Water Interface Detection: Utilizes high-precision technology to accurately detect minimal fuel and water levels, ensuring reliable interface measurement in tanks and industrial systems.
  • Hazardous Area Certification: Certified for Class I Divisions 1 & 2, Groups C & D, Class I Zone 1, and Class I Zone 2, ensuring safe operation in hazardous environments with combustible gases or vapors.
  • Precision & Consistency: Delivers highly accurate and repeatable readings, crucial for precise tank level monitoring and interface detection between liquids.
  • Versatile Output Integration: Offers 4-20 mA and RS-485 (Modbus RTU) outputs for seamless integration into PLCs, SCADA systems, and industrial automation platforms.
  • Durability & Longevity: Rugged design measures up to 12.75 feet (3.9 m) for the MPX-E, and 31.5 feet (9.6 m) for the MPX-R , ensuring reliable performance in diverse industrial environments with minimal maintenance.
  • Comprehensive Measurement:  Enables dual level (interface) measurement and calculates tank volumes using strapping tables, supporting accurate inventory management and operational planning.

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MPX-E/R Datasheet

MPX-E/R User Manual
  • Resolution:
    • 4-20 mA: 14 bit DAC (1 mm)
    • Modbus: 0.04 in. (1 mm)
  • Distance Accuracy:
    • 4-20 mA Modbus: Greater of ±0.05% of FS or 1 mm
  • Temperature Accuracy: RTD—1k Ohm: ±1°C
  • Probe Operating Temperature: -40º–85ºC (-40º–185ºF)
  • IP65
  • Electrical Connection: Terminal Block, 12–24 VDC
  • Typical current draw:
    • 4-20 mA: (single) 4-22 mA, (dual) 8-44 mA
    • Modbus (RS-485):
      • MPX-E: 25 mA
      • MPX-R: 28mA
  • Reverse polarity protection: Yes
  • Surge protection: Output 4 only
  • RS-485: optional RST-6001 USB to RS-485 converter
  • 4-20 mA: factory set or optional RST-4100 programming module
  • Output:
    •  Single or dual loop-powered 4-20 mA
      • Set points:
        • 4 mA, probe bottom.
        • MPX-E: 20 mA, 6 in. below probe zero point or at customer specified point
        • MPX-R: 20 mA, 10 in. below probe zero point or at customer specified point
    • Modbus RTU (RS-485), optional temperature output
  • Housing: Cast aluminum, epoxy coated
  • Stem:
    • MPX-E: 0.5” Ø 316L SS
    • MPX-R: 1.0” Ø 316L SS
  • Stem Length:
    • MPX-E: 1–12.75 ft. (0.3–3.9m)
    • MPX-R: 4–31.5 ft. (1.22–9.60 m)
  • CSA:
    • Rated 12-24 VDC; 4-20 mA or 80 mA; Ta 85°C
      • Class I, Division 1 & 2, Groups C & D T4
      • Ex d IIB T4
      • Ex nA IIB T4
      • Class I, Zone 1; AEx d IIB T4
      • Class I, Zone 2; AEx nA IIB T4
What is the difference between the MPX-E and MPX-R models?
  • MPX-E: Lightweight and compact, making it ideal for tight spaces.
  • MPX-R: Features larger, more robust floats and stems, making it well-suited for harsh environments prone to fouling or buildup.

The MPX-E/R is designed for precise liquid level and interface measurement in hazardous environments. It is ideal for applications such as storage tanks, oil/water interface measurement, industrial effluent, and high-turbidity environments in industries like oil and gas, petrochemical, water treatment, and more.

The MPX sensor utilizes Modbus RTU (RS-485 output), allowing seamless integration with any Modbus-compatible controller or PLC.

Industries that benefit from the MPX-E/R include:

  • Oil & Gas
  • Petrochemical
  • Water & Wastewater Treatment
  • Power Generation
  • Biotech & Chemical Processing

The MPX-E/R is designed for various fluids, including:

  • Storage and fuel tanks
  • Oil/water interface measurement
  • Thick, viscous, or sludgy fluids
  • Industrial effluent and wastewater
MOUNT

Flange, No Mount, NPT
OUTPUT

4-20 mA, Modbus
CERTIFICATION

CSA – General, Explosion Proof
ENCLOSURE PROTECTION

IP65
INDUSTRY

Chemical, Food & Beverage, Industrial Automation, Oil & Gas, Water & Wastewater
PROBE LENGTH

1' – 12.5', 4' – 32'

WARRANTY

APG warrants its products to be free from defects in material and workmanship under normal use and service of the product for 24 months from the date of shipment from APG, unless otherwise specified by APG in writing. Read our full warranty policy HERE.

RETURNS

Returns and allowances must be authorized by APG in advance, which authorization may be granted or withheld by APG in APG’s sole and absolute discretion. Read our full return policy HERE.

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