LTU20-24 Series Ultrasonic Level Transmitter

Brand: Intempco Controls, Inc.

The new LTU20 series 2-wire ultrasonic transducers provide non-contact level measurement up to 50 feet (15 meters) and are ideally suited for challenging corrosive, coating or waste liquids.

Featuring very high efficiency narrow beams and wide frequency bandwidth, they work in many conditions over wide temperature range.

LTU20 series transducers provide a self-cleaning operation, so their faces eliminate almost any buildup and condensation.

The ultrasonic probes adapt to most environmental conditions as their power and receiver sensitivity adjust automatically to any distance and reflecting object thus keeping the same echo amplitude over the operating range.

LTU20’s can be calibrated, in process or outside process, with simple push-button calibration.

Optional 3-1/2-digit LCD display is available. Standard construction is PVC (Aluminum optional) for housing with PVC mounting fitting.

For severe applications, other materials, such as Teflon , are available for the mounting fitting (and transducer).
Features
  • Simple push-button calibration
  • Output 2-wire 4-20 mA/20-4 mA
  • Built-in temperature compensation
  • Compact size for easy mounting
  • Optional 4-1/2-digit LCD display available
  • HART Communication available

Specifications

Accuracy

  • ± 0.1 % of, Maximum
  • ± 0.25 % of, Maximum
  • Loop Powered Display: ± 0.5 % of Reading

Calibration

  • Push Button

Communication

  • HART

Conduit Connection

  • 1/2" NPT Female

Consumption

  • Power: 0.025 A, Maximum

Current

  • Loop Powered Display: 150 mA - Maximum

Display

  • 3-1/2-Digit LCD Display
  • Head Mounted LCD Display
  • Loop Powered Display: 4-1/2" Digit LCD 1/2" High

Enclosure, Body Material

  • Aluminum
  • PVC-94V0

Environmental Protection

  • IP65
  • IP66
  • IP67
  • IP68
  • NEMA 4X
  • NEMA 6

Frequency

  • Operating: 52 to 148 kHz

Humidity

  • Loop Powered Display: 0 to 95 % Non-Condensing

NPT Connection

  • 1" NPT Male
  • 1-1/2" NPT Male
  • 2" NPT Male

Operating Temperature

  • -40° to 60° C (-40° to 140° F)

Output

  • 20-4 mA, 2-Wire
  • 4-20 mA, 2-Wire

Pressure Range

  • bar: 0 to 2
  • kPa: 0 to 200
  • psi: 0 to 29

Process Connection Material

  • PVC
  • Teflon

Range

  • 0.4 to 50 feet (0.12 to 15.2 metres)
  • Loop Powered Display: 3.5-22 mA [22 mA & above = LOE (Loss of Echo)]

Resolution

  • 0.04 to 0.23" (0.98 to 5.7 mm)
  • Output: 0.006 mA

Sensor, Probe Material

  • Sensor: PVC

Supply Voltage

  • 12-28 Vdc, 0.025 A, Maximum

Voltage Drop

  • Loop Powered Display: 0.95 V at 20 mA

  • Chemical
  • Food & Beverage
  • Oil
  • Metal Plating
  • Water & Wastewater

Show More