- Flow Meters[11]
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- Timers[2]
- Machinery Parts Processing Services[7]
- Transformers[1]
- Other Electronic Measuring Instruments[6]
- Other Machinery[2]
- Pressure Regulators[4]
- Instrument Parts & Accessories[3]
- Other Electrical Instruments[2]
- Uninterrupted Power Supply (UPS)[14]
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- Level Measuring Instruments[9]
- Water Meters[2]
- Pressure Sensors[4]
- Pressure Transmitters[3]
- Other Measuring & Analysing Instruments[5]
- Temperature Instruments[5]
- Valves[7]
- Wristwatch Tools & Parts[7]
- Other Safety Products[2]
- Inverters & Converters[2]
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- Contact Person : Ms. Huang Fanny
- Company Name : Fujian Wide Plus Precision Instruments Co., Ltd.
- Tel : 86-591-83969717
- Fax : 86-591-83969600
- Address : Fujian,Fuzhou,No.1, Chashan Road, Mawei Hi-tech Development Zone, Fuzhou city, Fujian
- Country/Region : China
- Zip : 350015
Ultrasonic Level Meter
>> Principle
The working principle of ultrasonic level meter is that: when the ultrasonic pulse sent by energy converter (detector) meets the surface of measured medium, the reflected echo will be received by the same energy converter and converted into electrical signal. The ultrasonic pulse travels at the speed of sound wave. The needed time interval from launching to receiving the ultrasonic pulse is directly proportional to the distance from converter to the surface of measured medium. The relationships among this distance value S, acoustic speed C and transmitting time T can be indicated by formula: S=C×T/2.
For adopting advanced microprocessor and unique Echo Discovery echo treatment technology, ultrasonic level meter can be used in kinds of complex working conditions.
>> Characteristics
For adopting advanced microprocessor and unique Echo Discovery echo disposing technology, ultrasonic level meter can be used in kinds of complex working conditions.
“False echo study” function makes the instrument correctly verify true echo and obtain accurate measuring results under working conditions with multiple false echo.
Energy converter built-in temperature sensor can realize the temperature compensation of measured value.
Ultrasonic energy converter adopts the best phonics matching technology, which makes its transmitting power transmit more effectively to promote the signal strength and realize accurate measurement.
Technical parameters>> Normal data
Process connection
- Process connection WPUM304 Thread, flange
- Process connection WPUM308 Thread, flange
- Process connection WPUM315 Hanging bracket or locking flange, stainless steel 316L
Material
- Energy converter PTFE, PU/PC
- Sealing of energy converter silica gel
- Shell Plastic PBT-FR; aluminum
- Sealing between shell and shell cover Silastic
- The window on shell used for View Point Makrolan
- Grounding terminal Stainless steel
Weight
- WPUM304 and 308 1.8~3.0kg (decided by process connection and shell)
- WPUM315 2.7~5.0kg (decided by process connection and shell)
>> Power supply voltage
Two-wire system
- WPUM304 and 308 two-wire system
- Non-explosion 15~35VDC
- Intrinsic safety 15~30VDC
- WPUM315 two-wire system 20~36VDC
Power consumption
Permissible ripple wave
- less than 100Hz Uss less than 1V
- less than 100Hz~100KHz Uss less than 10mV
Four-wire system
Power supply voltage 24V DC±10%
Power consumption max.4VA, 2.1W
Output parameter
Output signal 4~20mA/HART
Resolution 1.6μA
Fault signal Current output unchanged; 20.5mA; 22mA; 3.8mA
- Two-wire system load resistance see the following figuration
- Four-wire system load resistance Max. 500Ω
Integral time 0~99s, adjustable
Load resistance picture for two-wire system
Ultrasonic Level Meter
