| Type | RainBal 200 | RainBal 314 |
| Orifice Area / Diameter / Height | 200 cm2 / ∅ 160 mm / H 320 mm | 314 cm2 / ∅ 200 mm / H 355 mm |
| Weight | 4.6 kg | 5.2 kg |
| Range of Precipitation | Unlimited | |
| Intensity | 2000 mm/h | |
| Accuracy of Amount | ±0.025 mm or ±1 % | ±0.016 mm or ±1 % |
| Accuracy of Intensity | ±1.5 mm/h or ±1 % | |
| Threshold of Amount | 0.025 mm/40 min | 0.016 mm/40 min |
| Threshold of Intensity | 0.025 mm/min | 0.016 mm/min |
| Resolution | Amount: 0.001 mm; Intensity: 0.1 mm/h | |
| Measuring Element | Strain-gauge bridge (hermetically sealed and temperature compensated) | |
| Power Supply |
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|
| Pulse Output by Relay Contact | 1 / 0.1 / 0.01 mm (1 / 0.1 / 0.01 / 0.001 inch) | |
| Serial Output | SDI-12 by default / RS 485 selectable | |
| Output Parameters | Intensity, cumulative precipitation, weight (metric and imperial units) | |
| Connector and Cable | M12 8-pin; M12 4-pin (for optional heater); 10 m PUR cable | |
| Pole Mount | Diameter: 50-60 mm (2’’); by TB 334 mounting bracket (see below) | |
| Operating Measuring Temperature Range | 0 to 70 °C (with heating: -20 to 70 °C) | |
| Operating Deployment Temperature Range | -40 to 70 °C | |
| Operating Humidity Range | 0 to 100 % | |
| Degree of Protection | IP65 | |
KISTERS’ RainBal is a rain gauge that combines the highly accurate weighing principle with a self-emptying bucket mechanism. Equipped with a load cell, purpose built electronics and dedicated firmware, the rain gauge reliably delivers accurate high-resolution real-time data.
RainBal combines the advantages of weighing rain gauges and tipping bucket rain gauges while avoiding their disadvantages (like clogging, intensity and resolution issues of tipping bucket rain gauges, and overflooding or manual drain-off issues and massive weight and dimension of totalizator weighing gauges). Regarding the bucket orifice different versions are available (200 and 314 cm2).
RainBal meets the requirements of the WMO guidelines. Via serial interfaces and via the RainBal app one-minute intensity and cumulative rain are available.
RainBal is designed for easy installation and low-maintenance: large aperture to provide inflow, load cell and simple mechanical design. The advanced high-resolution load cell turns the Rainbal into a balance determining rain mass rather than volume achieving a higher accuracy. Due to its low power consumptionRainBal is ideal for remote stations powered by battery or a small solar panel.
RainBal achieves very high levels of accuracy by means of correcting the data to eliminate the influence of wind vibration, particles, unrealistic weight variations, evaporation, and temperature fluctuation.
Low power consumption, low maintenance and high accuracy in a self-emptying device provide reduced operational costs, less staff deployment in the field, better data and high data availability. In addition to our KISTERS data loggers, RainBal is compatible with other data loggers and ideal for setup and expansion of rainfall measurement networks.
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