Submersible Level Transmitter

The PRIMEX®, Submersible Level Transmitter (PSLT) is designed for continuous level monitoring. The instrument measures the hydrostatic pressure of the water above the sensor and outputs a 4-20 mA signal proportional to the level. The PSLT robust design provides a reliable and low maintenance solution for level control applications.


  • Transmitter wetted components are designed with nonconductive materials to provide an electrical isolation barrier
  • Pressure sensor isolated from process material by a protective VITON® diaphragm
  • Industry standard 4-20 mA, 2-wire loop powered
  • Reverse polarity protected
  • 18/2 shielded cable with vent tube
  • Provided with removable lock in place stabilizing weight
  • Multiple ranges
  • Multiple cable lengths
  • 2-year limited warranty


  • Measuring Ranges: 7.25 PSI (16.7 ftWC) and 14.50 PSI (33.4 ftWC)
  • Accuracy: 1% full scale
  • Operating Temp: 32-122°F (0-50°C)
  • Output: 4-20 mA, loop powered
  • Excitation Voltage: 8-32 VDC reverse polarity protection
  • Overpressure Protection: 58 PSI (133.6 ftWC)
  • IP Rating: IP 68 for permanent submersion
  • Wetted Materials:
    • Sensor Housing: PVC, 2.00” diameter x 5.62” length (51mm x 143mm)
    • Cable Seal: EPDM
    • Diaphragm: VITON®, 1.25” diameter (32mm)
    • Cable: TPE, 18 AWG – 2 wire shielded with vent tube, 0.3” diameter (8mm)
    • Stabilizing Weight: Epoxy coated cast iron, 1.0 lb. (0.45 kg), 2.6” diameter x 2.5” length (66mm x 64mm)



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