Description of Longrun LRF2000P Portable Ultrasonic Flow Meter
LONGRUN LRF2000P Portable Ultrasonic Flow Meter can be powered by a rechargeable battery or 220VAC. It has a built-in printer and a data logger. Installation is non-intrusive.
LRF2000P Portable ultrasonic flow meter realizes the non-contact measurement. It is ideal for flow surveys and closed-pipe applications where non-invasive measurement of liquids is required.
Temperature and heat can also be measured by connecting a clamp-on temperature transducer. Widely used in water supply, heat supply, chemical industry, machinery, and energy resources
The LRF2000P flow meter incorporates the latest ICs manufactured by famous semiconductor manufacturers like Philips, Maxim, TI, Winbond, and Xilinx. The hardware features ease of operation, high accuracy, and outstanding reliability, while the software provides a very user-friendly interface and much more functions.
It employs a patent balanced lower voltage multi-pulse igniting circuit which increases the anti-interference ability magnificently so that the flow meter will work properly even in demanding industrial environments such as those with a power frequency transfer working nearby.
The advanced circuit design, the integration of the latest semiconductors, and the user-friendly software interface both in English and Chinese languages, all these features combine to make the LRF-2000P ultrasonic flow meter the best and the biggest seller on the Chinese market. Moreover, it is gaining more and more recognition in the international flow meter market.
The LRF2000P ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide the benefits of non-fouling operation and easy installation.
LONGRUN-LRF2000P Portable Ultrasonic Flow Meter Feature
- Accuracy Linearity: better than 0.5%, Repeatability: better than 0.2%,Accuracy: better than ±1%
- The non-intrusive clamp-on transducer has no pressure drop and no pipe disturbance.
- Wide measuring range Several types of transducers for selection, measuring pipe size from DN 32mm to DN 6000mm
- Large capacity battery Built-in rechargeable Ni-MH rechargeable battery provides over 20 hours of continuous operation
- Built-in printer Available to print data in real-time, also available to timed print over 20 pre-set measuring results
- Built-in data logger Uplink over 20 measuring data to computer or internet
- Data storage Store over 20 pre-set measuring results to SD card, making it easy for data analysis and statistics
- Rs485 communication interface Upload the parameters and measuring results to compute
LONGRUN LRF2000P Portable Ultrasonic Flow Meter Specification
| Item | Performance & Parameter | |
| Convertor | Principle | Transit time ultrasonic flowmeter |
| Accuracy | ±1% | |
| Display | 2×20 character LCD with backlight supports the language of Chinese, English, and Italia | |
| Signal Output | 1 way 4-20mA output, electric resistance 0~1K, accuracy 0. | |
| 1 way OCT pulse output( Pulse width 6~1000ms, the default value is 200 | ||
| 1-way relay output | ||
| Signal Input | 3 way 4-20mA input, accuracy 0.1%, acquire signals such as temperature, press, and liquid le | |
| Achieve heat measurement by connecting the temperature transducer PT 100. | ||
| Data Interface | Insulate RS485 serial interface, upgrade the flowmeter software by computer, support MODBUS | |
| Data Record | Thermal printer, external SD card(2G of capacity) | |
| Pipe Instalation Condition | Material | Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, and the liner are allowed. |
| Diameter | 32 – 6000mm | |
| Straight Pipe | Transducer installation should be satisfied: upstream 10D, downstream 5D, 30D from the pump | |
| Measuring Medium | Type of Liquid | Single liquids can transmit sound waves, such as Water(hot water, chilled water, city water, seawater, wastewater, etc.); Sewage with small particle content; Oil(crude oil, lubricating oil, diesel oil, fuel oil, etc.) Chemicals(alcohol, etc.); Plant effluent; Beverage; Ultra-pure liquids, etc |
| Temperature | 30~160°C | |
| Turbidity | Less than 10000ppm and little bubble | |
| Flowrate | 0~±10ms | |
| Working Environment | Temperature | Converter: -20~60°C; Transducer: -30~160°C |
| Humidity | Converter: 85% RH; Transducer protection level: 6 | |
| Power Supply | 8 built-in Ni-MH batteries 1.2V(for over 20 hours of operation). Could operate 8 hours by connecting 4-20mA signal output. 90V – 260V AC adapter | |
| Power Consumption | 1.5W | |
LONGRUN LRF2000P Portable Ultrasonic Flow Meter Application
The LRF-2000P flow meter can be virtually applied to a wide range of measurements. The measured pipe ranges from 15-6000mm. Because the instrument and transducers are non-contacting and have no moving parts; the flow meter can not be affected by system pressure, fouling, or wear. Standard transducers are rated to 110 ºC. For further information, please consult the manufacturer for assistance.
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