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China, Chinese High-Precision Ultrasonic Water Level Sensor for Open Flumes1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Meter for Liquid GasFlow MeterAutomated Opening SensorAccurate Opening Sensor
Jiangsu Aice Instrument Technology Co., Ltd.
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Product Description Flumes No. TypeThroat width B value(m)Flow rate ValueParshall ValueLWH(mm)Flow Rate(m3/h)Liquid Level(m)C ValueN ValueMinMaxMinMax1Small0.0250.06041.55635×267×2650.32419.440.0150.212Small0.0510.12071.55773×314×3050.64847.520.0150.243Small0.0760.17711.55914×359×5172.772115.560.030.334Small0.1520.38121.581525×500×7305.4399.60.030.455Small0.2280.53541.531630×675×8909903.60.030.66Standard0.250.5611.5132845×980×106010.89000.030.67Standard0.30.6791.5212870×940×120012.614400.030.758Standard0.451.0381.5372945×1120×120016.222680.030.759Standard0.61.4031.5483020×1300×120012.530600.050.7510Standard0.751.7721.5573095×1480×12002539600.060.75Ultrasonic Open Chanel Level Flowmeter is comprised of Ultrasonic Level Sensor and Flow Integrator ABS engineering plastic shell material that using for Farm Irrigation, Industrial Measurements, Hydraulic Measurements and Environmental Protection Industry etc.LCD Display, 18-bit Operation Panel, Output 4-20mA, IO, RS485G1/2 Screw Thread Installation, Safe Grade IP65M60x2 Screw Thread Installation, Safe Grade IP68 Product introduction 1. 1 Preface This machine is a general-purpose industrial intelligent instrument, which can directly input the signal of ultrasonic transducer or general industry (4-20mA, 0-20mA, 1-5V, 0-5V, etc.), and RS485 serial port input function (optional) . This instrument adopts first tier quality multilayer PCB board, with compact hardware structure and reasonable layout. This product uses 18-key operation menu, supports isolated 4-20mA output, supports HART communication, built-in GPRS, GPS, 4G and other wireless data transmission, built-in 500,000 storage, supports USB storage export, and can be added according to customer needs The module realizes other functions. The instrument has powerful functions and integrates the function of an open channel flow totalizer, which can be used as an open channel flow meter. 1.2 Features of ultrasonic open channel flowmeter (1) Ultrasonic non-contact liquid level measurement does not affect the flow rate at all. The accurate liquid level measurement is an ideal liquid level meter. (2) The probe has low power consumption, simple installation and easy positioning. It is widely used in rivers, water supply, factories, urban sewage pipelines and other related fields. (3) The open channel flowmeter is simple to operate and suitable for wide types of water measuring weirs, including thin-walled right-angled triangular weirs, rectangular weirs, Parshall grooves, etc. (4) The open channel flowmeter has a historical flowmeter recording function, which can record the flow data of the past 60 hours, 30 days, 12 months, and 10 years. The body has a built-in storage of 500,000. (5) Comprehensive instrument control functions, four-way relay signal output, easy to connect to common actuators (motors, alarms, etc.). (6) According to the requirements of working conditions, the probe can choose special models such as IP68, anti-corrosion, explosion-proof, small blind area high-precision, ultra-low power consumption, large range and other special models. (7) Chinese display interface, 18 key operation. More easy-to-understand menu options make it easier to realize man-machine communication. (8) Built-in remote communication module, various communication protocols can be customized (customized when ordering). Technical parameters (1) Accumulative flow range: 0-9999999 (clear to zero when full 8 digits are full, and the accumulative times add 1, and the flow unit is based on the setting) (2) Instantaneous flow range: 10L/S~100m3/s (determined by the type and specification ofthe water measuring weir) (3) Flow accuracy: 5% (4) Ultrasonic probe (level gauge performance) performance indicators: Blind area: 0.06--2m (different depending on the sensor) Ranging range: 1, 2, 5, 8, 10, 12, 15, 20, 25, 30, 35, 40m The standard range is 2m (optional high-precision small blind zone type or larger range type) ABS material, IP65 protection level, 10m shielded cable (any length can be customized) (5) Host performance indicators: Chinese 3 L C D 18-bit keyboard operation IP65 protection level M16*1.5 electrical interface (6) AC85-380V or DC11-24V power supply, power consumption 5W (7) Signal input (choose when ordering): Ultrasonic probe, RS485 serial port (8) Signal output: One or two 4-20mA (standard 4-20mA), four relays, RS485 communication, HART communication (optional when ordering) (9) Sensor installation interface: standard 485 interface (10) Working environment: normal temperature, normal pressure (11) Data browsing: Quickly view hour, day, month, and year flow records (12) Optional function: support U disk data export, support wireless transmission (optional when ordering)The application of open channel flowmeter The open channel flowmeter supports the flow calculation of three types of open channel water measuring weir troughs: right-angled triangular weir, rectangular thin-walled weir and Parshall trough. The flow can be accumulated according to the set conditions, for example, set the accumulated low water level=0.05, and the accumulated high water level=1, which means that the flow accumulation is performed when the water level is greater than 0.5 and less than 1. When the standard Parshall groove is selected, the effective head range of the corresponding groove type will be automatically loaded. The flow calculation of this machine refers to the relevant standards of "JJG (Water Conservancy) 004-2015 Open Channel Weir Trough Flowmeter". When choosing the type of weir and trough for measuring water, it is necessary to consider the size of the flow in the channel, the flow pattern of the water in the channel, and whether it can form a free flow. When the flow is less than 40L/S, a right-angle triangular weir should generally be selected. If it is greater than 40L/S, the Parshall tank should generally be used. If the flow is greater than 40L/S, and the water level drop in the channel is large, rectangular weirs can be selected. Conditions permit, it is best to choose Parshall slot. The water level-flow relationship of the Parshall trough is calibrated by experiments, and the requirements for the upstream channel entering the trough are relatively weak. The water level-flow relationship of the triangular weir and the rectangular weir is derived from theoretical calculations, and it is easy to cause additional errors due to ignoring some use conditions. The water measuring weir can be made of FRP. The mouth ofthe triangular weir and the rectangular weir is the key size, and the processing must be accurate. The surface facing the water inlet should be smooth. The inner dimensions of the Parshall groove should be accurate, and the inner surface should be smooth. The throat part is the critical dimension, so it should be more accurate.
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