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Ultrasonic Level Sensor, 4.1 foot (1.25m) Range, Non-Contact Transmitter

SKU: ULSS-10

The Model ULSS Ultrasonic Level Sensor provides non-contact, continuous ultrasonic level measurement of fluids for short range applications. Ultrasonic technology paired with automatic temperature compensation provides accurate and reliable measurements in almost all conditions. The Model ULSS has failsafe logic that is easily configured to custom applications via free software removing the need for target calibration. Using the free software, the Model ULSS can be programmed to transmit an output signal as well as set the four relays for control applications. This rugged design comes with a NEMA 6P submersible enclosure rating to ensure a long lasting unit.

  • Product Applications
  • Water and WasteWater
  • Pulp and Paper Processing
  • Sump and Process Tanks
  • Chemical Processing
  • Food and Beverage

Installation Manual

Manufacturer: Mercoid by Dwyer

Weight: 1 lb

Delivery: Ships in 4-10 Business Days


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  • Features
  • Memory Non-volatile
  • Failsafe Contact
    • Power loss Hold last contact
    • Power on Open, close, or last contact
  • Programming Free PC software download (USB adapter required)
  • Agency Approvals CE, RoHS
  • Has a 4.1´ (1.2 m) measuring range with a 0.125" (3 mm) accuracy
  • Via free software, units can be programmed to transmit an output signal and operate four relays for control applications
  • Provides reliable, accurate, and non-contact level measurement of compatible liquids
  • Non-contact technology offers no moving parts to wear, jam, corrode, or get coated like contact technologies
  • Mapping software makes effective measuring surface only a 3" (76.2 mm) diameter column with no concerns of ladders, pipes, or other tank intrusions in the remaining sound cone
  • Ultrasonic technology paired with automatic temperature compensation provides accurate and reliable measurements in almost all conditions
  • Fail-safe logic is easily configured to custom applications via free software removing the need for target calibration
  • Full NEMA 6P submersible enclosure rating to ensure excellent product durability
  • Specifications
  • Service Compatible fluids
  • Wetted Materials
    • Sensor PVDF
    • O-ring FKM
  • Ranges 4.1' (1.25 m)
  • Accuracy 0.125" (3 mm)
  • Resolution 0.019" (0.5 mm)
  • Blind Zone 2" (5 cm)
  • Beam Width 2" (5 cm)
  • Temperature Limits
    • Process 20 to 140°F (-7 to 60°C)
    • Ambient -31 to 140°F (-35 to 60°C)
  • Temperature Compensation Automatic
  • Pressure Limits 30 psi (2 bar)
  • Power Requirement 12 to 28 VDC
  • Output Signal 4 to 20 mA, 2-wire
    • Invert 4 to 20 mA or 20 to 4 mA
    • Fail-safe 4 mA, 20 mA, 21 mA, 22 mA, or hold last
  • Loop Resistance 400 Ω max
  • Electrical Connections 4' (1.2 m) 9 conductor shielded cable
  • Contact Type 4 SPST relays
  • Contact Rating 1 A max @ 28 VDC max
  • Deadband Selectable (no hysteresis, 1/4", 1/2", 1", 1/2 cm, 1 cm, 2 cm, 5 cm or not available)
  • Process Connection 1.00" NPT
  • Enclosure Rating NEMA 6P (IP68)
  • Enclosure Material Polycarbonate
    • Gland TPE
  • Mounting Orientation Vertical

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Since the company was founded in 1931, customers have come to recognize Dwyer Instruments, Inc. to stand for quality, reliability, and readily available competitively priced products. As a leading manufacturer in the controls and instrumentation industry, we continue to grow and serve major markets including, but not limited to: HVAC, chemical, agriculture, food, oil and gas, water, wastewater, powder and bulk, and pollution control.
Dwyer holds over 650 technical patents and that number grows every year. We are an enthusiastic group of people headquartered in Michigan City, Indiana, with satellite locations around the globe. We take great pride in the intellect and integrity of our employees, who are passionate about the work we do, the products we develop, and the industries we serve.

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