Float Level Transmitter
Float Level Transmitter

Intrinsically Safe Magnetostrictive Float Level Sensor

MPI-E

Extreme Accuracy With Intrinsically Safe Wiring

The MPI-E is built for accuracy and durability in hazardous environments, offering precise interface level and total volume measurements. As an intrinsically safe sensor, it ensures reliable operation in explosive atmospheres. With a 0.5″ diameter and a lighter-weight design, it is ideal for applications where space is limited. The sensor’s robust design withstands high turbidity and harsh environments, with multiple material options for chemical compatibility. Paired with an Intrinsically Safe Modbus Display (MDI), it forms a self-contained monitoring system, eliminating the need for additional barriers.

  • Accurate Readings: Highly accurate and repeatable level and temperature readings
  • Space Saving Design: Lightweight construction makes it ideal for limited space applications
  • Durable Construction: Rugged and reliable, lengths up to 12.75 feet (3.9 m)
  • Display Compatibility: Pairs with MDI display for self-contained, intrinsically safe, level measurement and display system

ⓘ
  • Resolution: Modbus: 0.04 in. (1 mm)
  • Distance Accuracy: ±0.04 in. (±1 mm)
  • Temperature Accuracy: ±1°C
  • Operating Temperature: -40º – 185ºF (-40º – 85ºC)
  • NEMA 4X, IP65
  • Electrical Connection: Terminal Block, 8-24 VDC
  • Typical current draw: 24 mA
  • Reverse polarity protection
  • Surge protection (IEC 61000-4-5, 4-6, 4-7)
  • Optional RST-6001 USB to RS-485 converter
  • Output: Modbus RTU (RS-485) with Surge Protection
  • Housing: Cast aluminium, epoxy coated
  • Stem: 0.5” ø 316L SS
  • Stem Length: 1 – 12.75 ft. (0.3 – 3.9 m)
  • NEMA 4X, IP65
  • cCSAus Certificate CSA19CA70219727:
    • 8-24 VDC, Imax = 280mA
    • Class I, Division 1, Groups C, D T4;
    • Class I, Zone 0; AEx ia IIB T4 Ga; Ex ia IIB T4 Ga, IP65
    • Ta = -40º to 85ºC
  • ATEX Certificate Sira 19ATEX2072X:
    • II 1G
    • Ex ia IIB T4 Ga
    • Ta = -40º to 85ºC
  • IECEx Certificate IECEx SIR 19.0026X:
    • Ex ia IIB T4 Ga
    • Ta = -40º to 85ºC
What industries and applications is this sensor best suited for?

The MPI-E is commonly used in:

  • Hazardous locations (Class I, Division 1)
  • Storage tanks and fuel tanks
  • Oil/water interface measurement
  • Industrial effluent monitoring
  • Water and wastewater treatment
  • Power generation
  • Petrochemical, chemical, and oil & gas industries

The MPI-E is intrinsically safe and certified for use in hazardous locations (Class I, Division 1, Zone 0). It meets CSA, ATEX, and IECEx safety standards, ensuring reliable operation in environments where explosive gases or vapors may be present.

No. When paired with an Intrinsically Safe Modbus Display (MDI), the MPI-E forms a self-contained level monitoring system, eliminating the need for extra barriers.

Yes. The sensor is designed to work with storage tanks up to 12.75 ft. (3.9 m), ensuring flexibility for various industrial applications.

MOUNT

Flange, No Mount, NPT
OUTPUT

Modbus
CERTIFICATION

ATEX, CSA – General, IECEx, Intrinsically Safe
ENCLOSURE PROTECTION

IP65, NEMA 4X
INDUSTRY

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

1' – 12.5'

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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