The RK400-01 Tipping Bucket Rainfall Sensor is an instrument for testing rainfall in the nature. In order to meet the requirement of information transmission, processing, recording and display, the amount of rainfall is converted to pulse output. It can be widely used in weather stations, hydrometric stations, agriculture & forestry, defense & field monitoring stations. It can provide the original data for flood-prevention, water-supply system, and reservoir water management in plant.
FEATURES
* Compact size for easy use
* High accuracy, good stability
* Mesh in the funnel preventing debris such as leaves and insects from entering the working of rain sensor(mesh is optional)
* Well made tipping bucket with low resistance
* Highly polished stainless steel construction
* Horizontal Bubble in the bottom
* Rain collector with filter, to prevent the leaves, such as debris jam over the hole
* Optional heating function in cold region
APPLICATIONS
* Water supply system
* Hydrologic monitoring
* Natural disaster monitoring
* Agro-meteorological research
* Climate research
SPECIFICATIONS
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Item
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Specification
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Rainfall Collector
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diameter :φ200mm, height: 350mm
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Measured rainfall intensity
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Max:4mm/min
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|
Allow rainfall intensity |
Max:10mm/min |
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Resolution
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0.1mm,0.2mm
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Accuracy (2mm/min)
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±4%
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Maximum load voltage
|
30VDC(pulse output)
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Maximum load current
|
20mA(pulse output)
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Output
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Reed Switch Pulses, RS485(12-24VDC supply)
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Operating temperature(no freeze)
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-20-+80℃
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Main material
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Collector: 304SS, tipping bucket:ABS
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Tipping bucket |
Single |
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Heating(optional) |
Heating power: approx.350W, Heating voltage:220VAC
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|
Collector filter |
Removable filter (prevent leaves and sundries)optional |
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Weight(unpacked)
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3.5kg
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1.According to user requirements,set heating start point and heated end point before leaving the factory.
WORKING PROCESS
Rainfall is captured in the 200mm diameter collector funnel and is directed through a delivery pipe to fill a divided ABS injection molded tipping bucket device.The bucket is pivoted through its center and has a preset calibration to tip for 0.2 mm of rainfall. When the bucket is “full”, it pivots and empties - this action magnetically closes and opens a reed switch, sending a pulse signal to the data logger or electronic counter. Through this tipping “seesaw” action, the other side of the bucket is aligned to receive the flow from the delivery pipe. This recording and tipping cycle continues with rainfall.
DIMENSION
PARAMETER SELECTION TABLE
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Remark
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Series
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Type
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Output
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Resolution
|
Heating |
Filter |
Cable Length
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RK
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400
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01
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A
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Pulse (reed switch)
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B
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RS485
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|
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C
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customization
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A
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0.2mm (default)
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X
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Other
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A |
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Without heating |
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B |
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With heating(independent cable) |
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A |
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Without filter |
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B |
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With filter |
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1500
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Units:mm（typ）
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3000
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Units:mm
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...
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Units:mm
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Example: RK400-01AAAA1500 Output:pulse, Resolution:0.2mm, Without heating,Without filter, Cable Length:1.5m.
Tel / Fax: +86-731-85132979 
Email:
