AOSL77 Split Ultrasonic Level Meter
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- Technical specifications
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- AOSL77 Split Ultrasonic Level Meter
◆ Measurement PrincipleThe product utilizes a transducer to emit ultrasonic signals and then determines the distance by measuring the time difference of the reflected sound waves from the reflective surface. Depending on differentworking conditions, materials and operating frequencies can be selected accordingly. This is a non-contactmeasurement method, which imposes relatively low requirements on the measured medium, making it widely applicable. Additionally, a temperature sensor embedded within the transducer enables real-time correction of sound velocity to ensure measurement accuracy across varying temperatures.◆ Main characteristics▶ Measurement parameters: level (water level, liquid level, material level), distance, air temperature;▶ Single transducer model (conventional), dual transducer model (comm only known as one-drag-two,water level difference meter);▶ Optional: Industrial explosion-proof model;▶ Structure: Industrial aluminum alloy split-type casing;▶ Full Chinese-character backlit LCD display;▶ Three display interfaces: material level, distance, waveform;▶ Multi-echo curve display interface with multiple images;▶ With: AUTEC long wave, medium wave, and short wave independently configurable parameters, adaptable to various working conditions;▶ Based on the intensity of the echo energy, the ultrasonic emission energy can be adaptively adjusted;▶ Obtained: Water-rock instrument inspection report No. 20191019 from the Nanjing Water Resources MinistryWater-Rock Quality Supervisionand Inspection Testing Center;▶ Awarded: Multiple patents and software copyrights;▶ Obtained: "Calibration/Inspection Report" from the East China Hydrological Instrument Testing Center;▶ Obtained: Nanyang Explosion-proof Electrical Research Institute's "Explosion-proof Certification";▶Obtained: SIL Safety Certificate, NO.OP190411.FAFUC15;▶ Selected for inclusion in the "National Water Resources System Key Procurement Catalog for Bidding Products";▶ Obtained: Fujian Bureau of Quality and Technical Supervision "Pattern Approval Certificate for Measuring Instruments" CPA Min Liang Ji No.1266.◆Application scenariosSuitable for measuring various types of liquid levels, material levels, and solid levels in industrial settings. -
◆Technical Specifications
Level measurement accuracy 0.2%FS±0.003m Level resolution 0.001m Measuring range 0~0.5/30m Ultrasonic operating frequency 100KHz、64KHz、40KHz、26KHz、21KHz Ultrasonic blind zone 0.015m/100KHz Number of probes 1 unit,2 units(commonly known as:1-drag-2,
capable of measuring water head difference,such
as upstream and downstream water levels)Probe material ABS、POM、PTFE Temperature -10~70℃,resolution;0.1℃,accuracy,0.5℃ Standard industrial signal output 4-20 milliampere,RS485.MODBUS.RTU,relay Display Backlit full Chinese display,real-time echo display Power supply 24VDC、12VDC、Customized structure Aluminum shell split type Explosion-proof ExdlIBT6G6 Protection Host IP65,transducer IP68 -
AOSL77 Split Ultrasonic Level Meter Instrument Model AOSL77 Split Ultrasonic Level Meter Measuring Range 0 1.5meter（100K） 1 5meter（64K） 4 10meter（40K） 5 20meter（25K） 7 30meter（21K） 8 50meter（15K） Probe Material A ABS B PTFE C POM D PVDF E 304（onlyM78X2） Process Connection 1 M48X2 2 G2A 3 M78X2 5 M108X2 9 Customization for User-Specific Requirements Process Connection Accessories 0 Without process connection accessories 1 With additional DN50 flange (PVC material) 2 With additional DN80 flange (PVC material) 3 With additional DN100 flange (PVC material) 4 With additional flange of other specifications 6 With additional mounting bracket Power Supply C Four-Wire System 220VAC D Four-Wire System 24VDC E Four-Wire System 12VDC Communication Interface 0 No Communication Output 4 LoRa Communication 5 NB-IoT (Narrowband IoT) Output (China Telecom) 6 4G Signal Input/Output 7 NB-IoT (Narrowband IoT) Output (China Mobile) 8 RS485-ModBus RTU Communication Sound Velocity Calibration 0 Without sound velocity calibration rod (temperature compensation) (default) 1 With sound velocity calibration rod Transducer Cable Length 0 Standard Configuration 10 Meters (Default) 9 Customer-Specific Customization
Transducer / Single Transducer D Dual Transducers (Single Transmitter) E Dual Transducers (Dual Transmitters / No 485 Communication) Selection Examples AOSL77 - 4 - A - 2 - 0 - C - 8 - 0 - 0 - D Note1 For a measuring range of 1.5 meters, PVDF material is usually selected; for 5m, 10m, 20m, and 30m, ABS is usually chosen; and for 50m, POM is the common option. Note2 For a measuring range of 1.5 meters, M48X2 process connection is typically adopted; for 5m and 10m, G2A is commonly used; for 20m and 30m, M78X2 is the usual choice; and for 50m, M108X2 is often selected. Note3 The standard material for the flange is PVC, and other materials shall be specified in the remarks separately. Note4 The size of the additionally equipped flange shall be larger than the mounting thread of the transducer Note5 The standard cable length of the transducer is 10 meters. If other lengths are required, they shall be specified in the remarks when placing an order. On-site extension by oneself is not allowed. Note6 When extending the cable length, please select the transducer with the corresponding measuring range with reference to Table 1*.
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