TWO-WIRE ULTRASONIC LEVEL TRANSMITTER

• Non-Contact Level Transmitter with 4-20 mA Output

• Accurate and Reliable Level Measurement from 0.5 to 16.5 Feet

• Automatic Temperature Compensation Over Entire Range

• 8░ Beam Allows Application in Restricted Environments

• All Plastic Construction with PP and PVDF Materials

• LCD Digital Display Indicates Level in Inches or Centimeters

• Push Button Calibration For All User Set Points

• Microprocessor Logic Filtration Eliminates False Echo Signal Returns

• Fail-Safe Intelligence Provides Echo Signal Loss Safety

The two-wire ultrasonic level transmitter is the compact solution for non-contact continuous level measurement in process vessels, storage tanks and open channels. The loop powered device provides accurate level measurement up to 16.5 feet and is the ideal choice for more challenging coating or scaling type liquids including sodium hydroxide, wastewater, resin, wax, liquor and bleach.

An ultrasonic sound wave is pulsed two times per second from the base of the transducer. The sound wave reflects against the process medium below and returns to the transducer. The microprocessor based electronics measure the time of flight between the sound generation and receipt, and translates this figure into the distance between the transmitter and process medium below.

SPECIFICATIONS:

Range: 0.5 to 16.5 feet
Accuracy: ±0.25% of span
Resolution: 0.125" (3 mm)
Frequency: 50 kHz
Pulse rate: 2 pulses/second
Beam width: 8░ conical
Blocking distance: 6" minimum
Display type: 4 segment LCD
Display units: Inch / cm
Supply voltage: 18-36 VDC
Max loop resistance: 900 ohms @ 36 VDC
Signal output: 4-20 mA, 12-36 VDC
Signal invert: 4-20 / 20-4 mA
Calibration: Push button
Fail-safe diagnostic: Reverts to 4 mA or 22 mA
Temperature rating: -20° to 60°C, (-4° to 140°F)
Temp. compensation:Automatic over entire range
Pressure rating: 30 psi @ 25 °C., derated @1.667 psi per °C. above 25°C.
Enclosure rating: NEMA 4X / IP65
Enclosure matÆl: Polypropylene
Transducer matÆl: Polyvinylidene Fluoride
Mounting threads: 2" NPT

To Order  (Specify Model Number)  Prices Shown in U.S. Dollars
Model No.	Price	Description
LVU-201	$795	Ultrasonic Two-Wire Transmitter Loop Powered (4-20 mA)

Accessories
Model No.	Price	Description
LVCN-51	$425	Continuous Relay Controller with LED Display
The above mentioned prices are based on the general purpose transmitter configuration. To order the FM approved intrinsically safe configuration (pending approval), place FM at the end of the part number (example: LVU-201-FM) and add $50.00. To order the CE approved transmitter configuration, place CE at the end of the part number (example: LVU-201-CE) and add $40.00. The CE approved configuration complies with EN50081-2(1992) and EN50082(1995) immunity standards.

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U.S.A. and Canada International Callers; Sales & Service; 203.359.1660

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