Brief introduction: This instrument is in accordance with sl21-1990 standard of water conservancy and hydropower industry of the People's Republic of China, "long-term self-recording rain gauge" and "automatic rain gauge station" in 2003 edition of "ground meteorological observation standard" issued by China meteorological administration. The sensor, data acquisition and storage device and data transmission and processing device of this instrument are all digitized and intelligent, and it is the most advanced digital rain gauge with current performance. This instrument is superior to other rain gauges in its sensitivity to rain, measuring accuracy and range of application of rain intensity, and is suitable for equiping all kinds of rain measuring stations in strong rainfall areas in the south of China and dust environmental conditions in the north of China. Features: High sensitivity and accuracy to rain, suitable for a wide range of rain intensity. Instrument installation, adjustment, calibration method is simple. Rs-485 real-time cumulative rainfall output or pulse output (per 0.1mm rainfall) can be selected, which can be directly connected to the data collector, RTU, computer or other upper equipment to achieve high-precision data automatic acquisition and transmission. - solid state memory can be built in to store rainfall data no less than 3000mm. The intelligent function of automatic diagnostic instrument state. Scope of use: The instrument performance is far higher than that of international and domestic existing rain gauge, suitable for the equipment, all kinds of different climate conditions around the national basic precipitation station, encryption, automatic weather stations and telemetry station, as well as airports, railways, highways, mines, etc to rainfall observation location and monitoring stations on disaster prevention and mitigation, and complete the precipitation process of automatic measurement and data collection. In particular, it is used to replace the traditional paper recording siphon rain gauge to realize automatic measurement and reporting, automatic compilation and transmission of precipitation data. Main technical parameters: 1. The rain mouth diameter: Φ 200 + 0.60 mm, acute Angle edge 40 ~ 45 °; 2. Resolution: 0.1mm; 3. Rainfall intensity measurement range: 0.01 ~ 8mm/min (mm/min) 4. Measurement accuracy (within the range of 0.01 ~ 8mm/min rainfall intensity) : precipitation <10mm, measurement error: + / - 0.2mm; Precipitation is greater than or equal to 10mm, the measurement error: + + (0.2mm+1%F.S); 5. Output signal: 1) rs-485 interface, output real-time cumulative rainfall, truth value of rainfall encoder and relevant alarm signal (see appendix I jfz-01 digital rain gauge communication protocol V3.0 and data storage format for details); 2) pulse interface, the output contact of the rainfall relay is connected once every 0.1mm; 6. Rainfall storage and record capacity (optional function) : more than 3000mm precipitation; 7. Power supply voltage: 12VDC (-20% ~ +25%) 8. The working environment temperature: 0 ~ + 50 ℃; 9. Work environment humidity: 95% RH or less (40 ℃); 10.Volume (diameter × high): Φ 220 × 560mm; 11. Weight: 4Kg.
Brief introduction: This instrument is in accordance with sl21-1990 standard of water conservancy and hydropower industry of the People's Republic of China, "long-term self-recording rain gauge" and "automatic rain gauge station" in 2003 edition of "ground meteorological observation standard" issued by China meteorological administration. The sensor, data acquisition and storage device and data transmission and processing device of this instrument are all digitized and intelligent, and it is the most advanced digital rain gauge with current performance. This instrument is superior to other rain gauges in its sensitivity to rain, measuring accuracy and range of application of rain intensity, and is suitable for equiping all kinds of rain measuring stations in strong rainfall areas in the south of China and dust environmental conditions in the north of China.
