Perfect for remote and unattended locations
Overview
The CS703, manufactured by HyQuest Solutions, the gauge delivers high levels of accuracy across a range of rainfall intensities. The gauge consists of a collector funnel with leal filter with an outer enclosure complete with quick release fasteners with the base housing the tipping bucket mechanism.The unit includes a dual output 24V DC reed switch with varistor protection as well as dual rainfall discharge outlets for water collection and/or analysis. The CS703 is a high-end tipping bucket rain gauge with a plastic base and bucket. It measures precipitation in 0.2 mm increments. It is ideal for locations where intense rainfall events may occur. This tipping bucket is compatible with all Campbell Scientific dataloggers, and is used in environmental monitoring applications.
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Benefits and Features
- World standard 200mm diameter catch
- Reliable 'low cost' option
- Long term stable calibration
- Minimal maintenance required
- Used world-wide in a range of hostile environments
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Detailed Description
The CS703 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 datalogger 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.
Specifications
- Sensor Type: Tipping bucket without siphon
- Accuracy:
±1% @ 0 to 50 mm/hr;
±2% @ 50 to 75 mm/hr;
±4% @ 75 to 100 mm/hr - Resolution: 0.2 mm
- Measurement Range: 0 to 700 mm/hr
- Temperature Range: -20° to 70°C
- Humidity: 0 to 100%
- Orifice Diameter: 20 cm
- Drain Tube Size: Both filters accept 12 mm inner diameter tubing
- Cable: Two-conductor shielded
Compatibility
Mounting
The base of the gauge is supported by three legs. A CM240 Leveling Base and Mount or a user-supplied baseplate with leveling capability is recommended. The CM240 may be attached to a CM300-series mounting pole, or to a user-supplied 1.5 IPS (1.9-inch outer diameter, unthreaded) pipe. A concrete pad is recommended.
Wind Screen
Campbell Scientific offers the 260-953 Wind Screen to help minimize the affect of wind on the rain measurements. This wind screen consists of 32 leaves that hang freely and swing as the wind moves past them.
Datalogger Considerations
Each tip of the CS703 is marked by a dual reed switch closure that is recorded by a datalogger pulse count channel.
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