Overview:
This instrument is a primary instrument for measuring precipitation, and its performance meets the requirements of the national standard GB/T11832-2002 "Tipping Bucket Rain Gauge" and the standard SL21-2006 "Precipitation Observation Specification".
This instrument is used to observe rainfall and convert it into switch signal output, so that it can meet the further needs of rainfall information data transmission, recording, and display. It can be used with various rainfall alarms, telemetry terminals and other equipment, and is widely used in water and rain telemetry, flood control and drought resistance, and mountain torrent disaster early warning systems.
This instrument has been calibrated for accuracy at the factory, and there is no need to adjust the tilt angle of the bucket. When installing the instrument, just install the bucket and adjust the base level according to the requirements of this manual before putting it into use.
Main technical parameters:
Rain receiving port size: φ 2000+0.60mm, cutting edge acute angle: 40o~45o;
Resolution: 0.2mm; 0.5mm; 1mm;
Rain intensity range: 0.01mm~4mm/min (allowable rain intensity 8mm/min);
Measurement accuracy: ≤±4%;
Signaling method: Two-way reed switch on-off signal output;
Output
Dual reed switch;
Contact capacity: DC50V/0.2A;
Contact life: 10000000 (lmax<200mA);
Working environment:
Ambient temperature: 0℃~+55℃;
Relative humidity: <95% (40℃);
Storage environment:
Ambient temperature: -40℃~+60℃;
Relative humidity: Unlimited
Features:
1. High precision and good stability. 2. Small size and easy installation.
3. Good linearity, long transmission distance, and strong anti-interference ability. 4. The tipping bucket component support system is well-manufactured, with small friction torque, so the tipping bucket component is sensitive to tipping, stable in performance, and reliable in operation. 5. The instrument shell is made of stainless steel, which is strong in rust resistance and has a good appearance quality.
6. The rain-receiving port is integrally stamped and drawn from stainless steel, with high smoothness and small error caused by stagnant water.
Scope of application:
The tipping bucket rain sensor is a hydrological and meteorological instrument used to measure natural rainfall, and at the same time convert the rainfall into digital information in the form of a switch output to meet the needs of information transmission, processing, recording and display. It can be used in meteorological stations (stations), hydrological stations, agriculture and forestry, national defense, field reporting stations and other relevant departments, and can be used with the rain recorder independently developed and produced by our company to measure rainfall, rainfall intensity, rainfall time, etc. It can provide original data for flood control, water supply scheduling, and water condition management of power station reservoirs.
Working principle:
In the initial rainfall, the first 2-5mm of rainwater is generally heavily polluted and the flow rate is relatively small. When flowing through the initial runoff abandonment and filtration device, due to the effect of gravity, the rainwater will first be discharged through the low-level open sewage pipe. After the amount of rainwater increases, the pressure on the baffle increases, and the float ball at the upper end of the sewage pipe closes the sewage pipe under the action of water flow pressure, the liquid level in the bucket rises, and the rainwater flows to the outlet for collection after being filtered through the horizontal filter screen. After the rain stops, as the amount of rainwater stored in the device decreases, the float ball automatically resets under the action of the spring force, taking out the garbage generated by the filtration in the bucket, thereby realizing multiple functions such as initial rainwater abandonment, filtration, and automatic sewage discharge.
Keywords:
Rainwater deep treatment
Rainwater storage
Rainwater pretreatment
Central Control System
Chip
Accessories
15th Floor, Longteng Building 416 Tianda Lane Southern Business District Yinzhou District Ningbo City Zhejiang Province