Accurate and Reliable Level Measurement from 0.5 to 18 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
产品描述
The LVU-201 model has been discontinued. Please see the
LVCN318 Series as a possible alternative or contact our Flow Engineering department.
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 18 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. The surface of the level being measured must be free of fumes, vapors, foam and the surface must be flat; the signal may be lost if any of these conditions are present.
SPECIFICATIONS Range: 0.5 to 18 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: 16-36 Vdc std; 14-32 Vdc for IS-CSA version Max loop resistance: 900 ohms @ 36 Vdc Signal output: 4-20 mA Signal invert: 4-20 / 20-4 mA Calibration: Push button Fail-safe diagnostic: Reverts to 4 mA or 22 mA Temperature rating: -40 to 60°C, (-40 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 mat’l: Polypropylene Transducer mat’l: Polyvinylidene Fluoride Mounting threads: 2" NPT
Please download PDF file below for full product specifications
† 所有金额以RMB显示 注: Units come complete with operator's manual. 订购示例: (1) LVCN-51 Continuous Relay Controller with LED Display, ¥4,336.02
