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******** Replaced by Model ULT - See Page

Dwyer Series UL - Ultrasonic Level Transmitter

Continuous, Noncontact, 4 to 20 mA Output
Series UL Ultrasonic Level Transmitters provide continuous noncontact sensing for level control of liquids or slurries. The sensor emits an ultrasonic pulse which is reflected back to the sensor at the liquid/air interface. The distance traveled by the pulse is calculated and converted into a 4-20 mA output signal. Internal microprocessor performs self diagnostics to indicate possible operating problems such as out-of-range or loss of echo. Failsafe feature can be set to deliver a 3 or 21 mA output in the event the echo is lost. See Dimensions
Service: Liquids or solids.
Wetted Materials: None, noncontact.
Accuracy: ±0.3% of span.
Repeatability: ±0.125" (±3 mm).
Temperature Limits: Sensor: -20 to 180°F (-30 to 82°C), Control Box: -10 to 160°F (-23 to 71°C).
Compensated Temperature Range: -20 to 180°F (-30 to 82°C).
Pressure Limit: 150 psig (10.34 bar).
Blind Zone: 15 ft (4.57 m) range: 12" (304.8 mm). 35 ft (10.67 m) range: 18" (457.2 mm).
Beam Angle: Conicle, 6.5° from centerline.
Power Requirements: 115 ±10% VAC, 50/60 Hz.
Output Signal: 4 to 20 mA, 2-wire.
Zero and Span Adjustments: The zero setting (4 mA) is the furthest point be to detected and the span setting (20 mA) is the closest point to be detected and must be greater than the blind zone. Both are set in inches or centimeters in the control box. The measuring range will be the zero setting minus the span setting.
Loop Resistance: 600 Ohms at 24 VDC.
Current Consumption: 5 VA.
Electrical Connections: Screw terminal.
Conduit Connection: Cable gland.
Process Connection: 2" or 3" 150# flange in PVC or Kynar®.
Enclosure Rating: NEMA 4X.
Mounting Orientation: Not position sensitive. Must be obstruction free.
Weight: 9.45 lb (4.29 kg).
Sensor: Standard CPVC. Optional Kynar®, Teflon®, or 316 SS.
Options: Sensor materials and process connection.
Monitor and control levels of water, wastewater, oils, chemicals, acids, viscous liquids, and slurries.
Model Number Range/Connection
 UL111  15 ft (4.5 m) / 2" PVC flange
 UL213  35 ft (10.5 m) / 3" PVC flange
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