Non-Contact Ultrasonic Level Transmitter/Switch
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Manufacturer: Omega(USA)
Model: LVU30 Series
Introduction:
The LVU30 Series of RoHS Compliant low-cost ultrasonic sensors that produce detection ranges from as close as 100 mm (4") to greater than 4.5 m (15'). Incorporating state-of-the-art ultrasonic technology, the sensors provide precision non-contact distance measurement for factory automation or industrial process control. The LVU30 series of sensors stand out over all other systems because of their affordability, extraordinary ease of operation, genuinely user-friendly software, versatility in usercontrolled outputs, and the ability to be set up without using a target. They transmit narrow beam sound pulses at a user-selected rate (software triggered), the process returns echoes, and various outputs depending on the position of the target and programming parameters.
Specifications:
Ultrasonic Frequency:
LVU31: 210 kHz
LVU32: 150 kHz
LVU33: 95 kHz nominal
System Beam Angle: 8 degrees conical
Range:
LVU31: 100 mm to 1.3 m, (4 to 50")
LVU32: 180 mm to 2.5 m (7" to 8')
LVU33: 0.3 to 4.5 m (1 to 15') application dependant
Resolution: 0.25 mm (0.01")
Echo Detection Sensitivity: User selectable
Power Required: 12 to 24 Vdc(reverse polarity protected), 30 mA, typical
Output Impedance: 100 Ω for both modes of operation
Proportional Mode
Zero and Span Voltages: Programmable from 0 to 10.25 Vdc (factory default: 0 to 10.0 Vdc)
Loss of Echo Voltage: Programmable from 0 to 10.25 Vdc (factory default: 10.25 Vdc)
Response Time: 60 mS
Resolution: 10 bits
Switch Mode
Set Point Voltages: 0 or 10.25 Vdc
Set point Hysteresis (Programmable): 0 to 75%
Response Time: < 1 ms
Sampling Rate (Programmable): 0.1 to 100 Hz in 0.1 Hz increments (factory default: 10 Hz)
Target Distance Averaging
Rolling Average: From 1 to 32 samples
Boxcar Average: From 1 to 1,024 samples (factory default: 1 sample)
Loss-of-Echo Time-Out: From 1 to 254 consecutive samples missed before time-out (factory default: 1 sample)
Housing Material: PVC
Connection: 1 NPT
Transducer Surface: Custom PPA
Cable: 5 conductor, PVC jacket, 22 AWG, 200 mm (8") pigtail [user-extendable for RS-485 communication to 1,500 m (5,000')]
Operating Temperature: -20 to 65°C (-4 to 149°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Relative Humidity: 0 to 95%, non-condensing
Enclosure Rating: NEMA 6 (IP67)
Programming Requirements
Communications Converter: RS-232 (or USB)/RS-485 with automatic send data control
Operating System: Windows® 95/98/NT/2000/XP
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