LVU41-RS485变送器LVU41-RS485
LVU41-RS485
连续超声波液位变送器 » LVU41 and LVU42 Series 超声波非接触式液位测量 LVU41 and LVU42 Series
Available with RS232 or RS485 Communications Programmable Push-Button Calibration Elimination of Unwanted Echoes Temperature Compensated Field/Bench Calibration Self-Cleaning Sensor Face Non-Volatile Memory (Batteries not Required)
产品描述 The LVU40 series ultrasonic transmitters are advanced ultrasonic level measurement sensors for liquids. These products continue to meet demanding applications. The microprocessor-based circuits provide a temperaturecompensated signal for improved accuracy. All models have the ability to filter false echoes produced by peripheral obstructions. Continuous level measurement can be provided in a range of 0.3 to 18.3 m (1.0 to 60') with several power and programmability options. Point level can also be obtained using a PLC (Industrial Programmable Controller) or one of OMEGA’s CNI process controllers. SPECIFICATIONS Accuracy: ±0.25% of max range (in air) Range: 0.3 to 18.3 m (1 to 60') Resolution: 6.9 mm (0.270") Frequency: 45 kHz Dead Zone Range: 0.3 m (1') Operating Temperature Range: -40 to 60°C (-40 to 140°F) Pressure: 1 bar (15 psig max) Mounting: 3 NPT Beam Angle: 6 to 12° at -3 dB (model dependent) Loss of Echo Hold: 30 seconds, 22 mA output Power Options: AC: 115 Vac, 60 Hz or 230 Vac, 50 Hz (±20%) 1.7 VA DC: 12 to 30 Vdc @ 0.07 A, @ 24 Vdc R load = (Vs – 6)/24 mA Output: 4 to 20 mA or 20 to 4 mA, 6.1 µA resolution; 750 Ω (isolated on 4-wire models only) Optional: RS232 or RS485 communications port Fuse: 0.125 A/250 V type Temperature Compensation: Onboard the sensor Calibration: Pushbutton or optional programmable Diagnostics (Echo Profile): Via optional programmable port Approval: Entela, CE Conduit Entry: ½ NPT hole (PVC only) Enclosure: Aluminum with PVC antenna ingress protection [NEMA 4X (IP66)] Housing Dimensions: 101.6 x 226.1 m (4 x 8.9") Sensor Diameter: 76.2 mm (3")
产品编号 产品描述 Accessories Measurement Range 0.3 to 18.3 m (1 to 60') CNI3233 1/32 DIN controller with relays DPI32 1/32 DIN panel meter LVU41-RS232 Three-wire 12 to 30Vdc ultrasonic with RS232 communications and Windows software LVU41-RS485 Three-wire 12 to 30Vdc ultrasonic with RS485 communications and Windows software PSR-24S Regulated power supply, US plug, 90-264 Vac input, 24 Vdc output, 400 mA, screw terminals, UL 产品编号 产品描述 Accessories Measurement Range 0.3 to 18.3 m (1 to 60') CNI3233 DPI32 LVU41-RS232 LVU41-RS485 PSR-24S
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