Cảm biến đo mưa kiểu chao lật Campbell Scientific CS700H-L
The CS700H, manufactured by HS Hyquest Solutions, is a high-end heated tipping bucket rain gage with an 8 in. orifice and a heavy duty cast aluminum base. It measures precipitation in 0.01 in. increments at temperatures down to -20°C. This heated rain gage is ideal for locations where intense rainfall events may occur, and it is used in environmental monitoring applications.
Benefits and Features
- Extra-heavy metal construction for durability and long life
- Low power consumption
- More accurate measurement of high-intensity precipitation
- High precision—tips at 0.01-in. increments
- Accuracy is ±3 percent at high precipitation rates of 500 mm/hr
- Heater elements can run on either batteries or ac power
The CS700H funnels precipitation into a bucket mechanism that tips when filled to its calibrated level. Each tip is marked by a dual reed switch closure that is recorded by a data logger pulse count channel. After measurement, the water drains through two orifices (accepts 12 mm tubing) in the base, allowing the measured water to be collected in a separate container.
The CS700H contains an internal siphon mechanism that causes precipitation to flow at a steady rate to the tipping bucket mechanism (regardless of intensity). The siphon allows the sensor to make accurate measurements over a range of 0 to 50 cm per hour.
The CS700H includes an internal snow sensor that is activated when the air temperature drops below 4°C. If the snow sensor detects snow in the catch area (funnel), the heating elements automatically turn on and keep the funnel temperature at +10°C. To conserve power, the heater goes into a wait mode when snow has not been detected for 18 minutes. The heating element is also automatically deactivated when the air temperature drops below -20°C.
|Sensor Type||Tipping bucket with siphon and dual reed switch|
|Accuracy||700 mm/h (27.6 in./h) maximum rate per hour|
|Rainfall per Tip||0.01 in. (0.254 mm)|
|Measurement Range||0 to 700 mm/h (0 to 27.6 in./h)|
|Humidity Range||0 to 100%|
|Cable Type||Two-conductor shielded|
|Operating Temperature Range|
|Total Current Consumption|
|Main Power Voltage Requirements||10 to 30 Vdc or 12 to 28 Vac|
|SDI-12 Power Voltage Requirements||9.6 to 16 Vdc|
|Drain Tube Size||Both filters accept 12 mm (0.47 in.) ID tubing.|
|Orifice Diameter||20 cm (7.9 in.)|
|Height||34.2 cm (13.5 in.)|
|Weight||3.3 kg (7.4 lb) with 7.62-m (25-ft) cable|
CS700H-AC Option Only
|-NOTE-||Additional specifications are provided in Phoenix Contact’s manual for the Quint-PS/1AC/24DC/10.|
|AC Input Voltage Range||85 to 264 Vac|
|Protective Circuitry||Transient Surge Protection Varistor|
|Integrated Input Fuse||6.3 A (slow blow, internal)|
|Normal Output Voltage||24 Vdc ±1%|