OTT Pluvio² L – Weighing Rain Gauge
All-weather, high accuracy rain gauge for continuous data collection
The OTT Pluvio² L is an all-weather precipitation gauge that uses superior weight-based technology to measure the amount and intensity of rain, snow, and hail. Developed in conjunction with industry-leading meteorological services, the OTT Pluvio² L employs a high-precision load cell and algorithms that compensate for wind, temperature, and evaporation, ensuring the highest accuracy precipitation measurements over time.
- Cumulative precipitation, precipitation intensity, bucket content in real time and non real time
- 12
- All-weather precipitation gauge without moving parts according to WMO guide line No. 8
- SDI-12 / RS-485, pulse
- 70.040.000.9.0
- Accurate measurement: precipitation accuracy within 0.004 inches with accumulation and intensity readings and filter algorithms to compensate for wind, temperature, and evaporation
- Virtually maintenance-free operation: lifetime factory calibration, drift-free measurements, and robust protective housing eliminate field visits for instrument service
- Multiple communication interfaces: SDI-12, RS-485, and Pulse Output options
- Solar panel power options make the instrument ideal for remote locations
- Easy software setup and a USB interface for communication with computer
- Wind protection shield available for particularly exposed locations
- Heated ring option available to prevent the accumulation of snow on the sensor
- Easy installation onto 4" pipes
- Precipitation Measurement: Continuous, real-time measurement of rain, snow, hail, and sleet in all monitoring environments, even remote environments without power supply
- Early Flood Warning: when combined with water level sensors, the Pluvio² L is the central component in an early flood warning system
- Urban hydrology: Even in the event of heavy rainfall of up to 3000 mm/h the Pluvio² L provides precise intensity values for controlling stormwater runoff to the sewer system.
Leaflet - Precipitation gauge using the weighing principle - OTT - Pluvio² L (EN)
|
|
|
|
|
|
|
Download as PDF
Download as PDF
Recordable precipitation | Liquid, solid, and mixed |
Collecting area | 200 cm² / 400 cm² |
Recordable precipitation amount | 1500 mm / 750 mm |
Measurement method | Weighing measurement method |
Sensor element | Sealed load cell |
Measuring ranges | |
Precipitation | 0 ... 50 mm/min or 0 ... 3000 mm/h |
Cumulative precipitation threshold at 60 min collection time | 0.05 mm/h |
Precipitation intensity threshold | 0.1 mm/min or 6 mm/h |
Accuracy (at -25 ... +45 °C ) | |
Amount | ±0.1 mm or ±1 % of measured value |
Intensity | ±0.1 mm/min, ±6 mm/h or ±1 % of measured value |
Resolution | |
SDI-12- and RS-485 interface | 0.01 mm, 0.01 mm/min or mm/h |
Impulse output | 0.05/0.1/0.2 mm |
Measurement intervals | |
Intensity output interval | 1 minute |
Query interval | 1 minute ... 60 minutes |
Output delay | |
Real-time (RT) | < 1 minute |
Non real-time (NRT) | 5 minutes |
Output data | |
Measurement output | Intensity RT, amount RT/NRT, amount NRT, amount total NRT, bucket content RT and NRT, temperature load cell |
Status output | OTT Pluvio² L Status, Heating status (if present) |
Interfaces | |
Digital interfaces | SDI-12 V1.3, RS-485 2- or 4-wire (SDI-12 protocol and ASCII) |
Digital outputs (2/5 Hz) | Impulse: 0.05/0.1/0.2 mm (adjustable) Status: 0 ... 120 impulses/min |
USB | USB 2.0 (for service mode) |
Electrical data | |
Power supply | 5.5 ... 28 VDC, typically 12 VDC |
Current consumption | typ. 9.2 mA at 12 V (without heating) |
Power consumption | ≤ 110 mW (without heating) |
Ring heating, optional | |
Power supply | 12 ... 28 VDC, typ. 12/24 VDC |
Current consumption | Puvio² L 200: typ. 2.1 A; max. 2.2 A Puvio² L 400: typ. 4.2 A; max. 4.4 A |
Power consumption | |
Pluvio² L 200: | max. 50 W at 24 VDC; max. 12.5 W at 12 VDC |
Pluvio² L 400 | max. 100 Watt at 24 VDC; max. 25 Watt at 12 VDC |
Modes of operation | Disabled, continuously enabled, continuously enabled within a specified temperature range, US NWS standard (time-controlled), enabled in case of precipitation (adjustable after-run time) |
Dimensions and weight | |
Pluvio² L 200 (Ø x h) | 450 mm x 752 mm |
Pluvio² L 400 (Ø x h) | 450 mm x 677 mm |
Pedestal (Ø) | 4'' |
Weight (bucket empty) | 16 kg / 16.6 kg |
Material | |
Base plate | Stainless steel / aluminium |
Collecting bucket | Polyethylene |
Bucket support, pipe housing | ASA, UV-resistant |
Environmental conditions | |
Temperature, in operation | - 40 ... +60 °C |
Temperature, storage | -50 ... +70 °C |
Relative humidity | 0 ... 100 % (non-condensing) |
Protection | |
Housing (closed) | IP65 |
Housing (open) | IP63 |
Load cell | IP68, resistant to salt fog |
Standards | EMV: 2004/108/EG; EN 61326-1:2013 |