Model 565

SKU: 565

Pressure Transmitter, Large Diaphragm, Integral Electronics

When installed in a lift station, sump, basin, or other containment, the strain gauge sensor detects the liquid level as a function of the height and density of the liquid above it. Because the diaphragm is completely open to the product being measured, it cannot be plugged and rendered inoperable by liquids with high solids content such as sewage, wastewater, and slurries. The diaphragm is fabricated from tough rubber, and is coupled to the strain gauge through a nontoxic oil fill. The abrasion resistant face has superior resistance to damage from gravel, and other moving solids. Its large three inch active face size, and its smooth outer surface makes it extremely durable and reliable in harsh services. A vent tube connected directly to the sensor automatically compensates for changes in atmospheric pressure. A desiccant filter, or isolation bladder prevents condensation in the vent tube. No refilling or maintenance is required for the bladder.


  • Flexible isolator for wastewater and slurries
  • Large, rugged EPDM diaphragm
  • Supported by rigid pipe or flexible cable
  • 4-20 mA dc, 2-wire
  • 316 Stainless Steel body
  • PVC or TEF cable jacket
  • Zero and Span pots for field recalibration
  • Spark and voltage surge protection
  • Cable junction box with isolation bladder
  • Reliable, no maintenance


  • Technology: Silicon strain gauge
  • Supply Power: 9 DCV to 35 DCV, 2-wire loop powered
  • Output Signal:4-20 mA dc isolated
  • Loop Impedance: 550 Ω at 24 DCV, 1100 Ω at 35 DCV
  • Adjustments (Span):30% ≤ 100% of sensor range
  • Basic Non-interactive:Zero ≤ 30%
  • Protective Devices:Transient suppressors and lighting arrestors
  • Temperature Range:
  • Liquid: -20 °F to +220 °F (-29 °C to +104 °C)
  • Electronics: -20 °F to +180 °F (-29 °C to +82 °C)
  • Accuracy:+0.25% FS or >
  • Thermal Error:+0.015% FS/ºF max
  • Barometric Effects:None
  • Over Pressure:2X rated pressure range; 35 psi min

Required Ordering Information

  • Detailed model number
  • Tag or nameplate detail (if required)
  • Factory calibration: custom range or full-scale
  • Documentation/testing tiers (if required, refer to Additional Resources in the product catalog)

Additional Information


Pressure Transmitter, Large Diaphragm, Integral Electronics

Level Measurement


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