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Products // Ultrasonic Level Transmitter  
AUL730 Series

AUL730 Series is a fixed mounted, Ultrasonic Level Transmitter with Fix-in the air and used for non-invasive measurement.
Our microprocessor based, user friendly, field programmable level measurement technique allows no interruption of the process Level and has low installation costs.

 Simple set-up and operation  
 Fast and simple to install and configure  
 Loop-powered 4-20mA output with Hart signal  
 Low cost of installation and commissioning  
 Non-contact level measurement  
 Exclusive sensor for level transmitter  
 Response time less than 1 second 


Measuring Principle: Process Temperature:
Ultrasonic Level Measurement -40 ~ +60 oC(Standard)
Measuring Range: -40 ~ +100 oC(Optional)
0-10 Meter, 0-15 Meter, 0-20 Meter Process Pressure:
0 -33 Ft, 0 - 50 Ft, 0 - 65 Ft -0.8 ~ +2.0 BarG
Display: Max. Cable Length:
4 Line LCD with Bargraph (Illumination) 50 Meter (Separate Version)
Resolution: Power Supply:
1 mm / 0.003 Ft 12-36VDC, 2 wires (Compact)
Accuracy: 12-36VDC / 85-260AC, 4 wire (Separate)
+/-0.25% of Full Scale Power Consumption:
Repeatability: Less than 3W
+/-0.1% of reading Output:
Material: 4-20 mA
Ultrasonic Tube Load
ABS Rohm=(Vdc-12)*50  
Sensor Head Alarm:
Polyurethane (Standard) / ETFE / PTFE High/Low/High-High/Low-Low (Separate)
Housing Communication:
ABS or Aluminum Alloy (Weather Proof) RS485 Modbus, 4 Wire only (Standard) 
Aluminum Alloy (Explosion Proof) Hart Signal (Optional)
Update Time: Temp. Compensation:
< 3 S Built-in to compensate over temperature
Ambient Temperature: range
-20 ~ +60 oC Data Storage:
Relative Humidity: Operation parameters and totalization 
0 - 100% RH date are stored by EEPROM for more
Sensor Frequency: than 10 years
40KHz / 1KHz EMI/RFI Effect:
Blanking Distance: Follow SAMA PMC 33.1 from 20 to 1000
0.35 M Max.  MHz and for field strengths up to 30 V/m
Bean Angle: Dimensions:
6o Compact (ABS)
Keypad: 105mm(W)*262mm(H)*168mm (D)
4 Key with tactile action Compact (Aluminum)
Response Time: 161mm(W)*247mm(H)*132mm (D)
Less than 1 second Separate (ABS)
Protection Class: 183.5mm(W)*218mm(H)*125.5mm (D)
IP65(ABS) / IP67(Aluminum Alloy) Weight:
Explosion Proof, EX d (ia) II B T4 1.0Kg /2.2kg (compact), 2.2 Kg (Separate)
G 2"and 20m sensor is M70*2 Standard
Flange end (Optional)
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