Purchase Of Automatic Weather Station At Hfri Shimla Under Two Bid Systems

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Purchase Of Automatic Weather Station At Hfri Shimla Under Two Bid Systems 1. Data-logger Data-logger should be portable, water proof with inbuilt rechargeable battery. No. of Channel : 12 or more Response Time: 1 sec Sampling Frequency: 10 Hz Data Storage : Micro SD card Memory Capacity : >2GB /expandable Battery/Power : Inbuilt, Rechargeable, Lithium-ion 12 VDC Wireless data Communication : GPRS/GSM/3G /CDMA Operating Temperature Range : -40°C to 80°C: RH range : 0-100% 2. Air Temperature Sensor Range: -40°C to +120°C Resolution : 0.01°C Accuracy : ±0.3°C 3. Humidity Sensor Measuring Range: 0 to 100% Resolution : 0.05% Accuracy : ±2% 4. Solar Radiation Sensor Range :0-1750 W/m2 Resolution: 1 W/m2 Accuracy : 1 W/m2 Accuracy: 1% or better 5. Rain Fall- Tipping Bucket Rain Gauge Range: 0-500 mm/hr Resolution : 0.2mm Accuracy : ±3% Rim Diameter : 20cm Material: Stainless steel, powder coated paint 6. Wind Speed Sensor (Anemometer)3cup, Digital / Pulse Unit : m/s or km/hr Range: 0-58 m/s (0-209 km/hr) Resolution : 0.45 m/s (1.6 km/hr) Accuracy : ±5% 7. Wind Direction Sensor (Digital) Operating Range : 0 to 360° Resolution: 1° (0 to 355°) Accuracy : 7° Excitation Voltage : None passive 8. Soil Moisture Sensor (Quantity- 3) Measuring principal: TDR/FDR Range: 0— 100% VWC Accuracy +/- 3% Cable : >3m 9. Soil Temperature Sensor (Quantity- 3) Range: -20°C to - 60°C Resolution : 0.1°C Accuracy : +/- 0.10C Cable Length : 4 m 10. Soil Heat Flux plate-heat flux Unit: W/m2 Range : -2000 to +2000 W/m2 Sensitivity: 5011V/W m2 Accuracy : +/- 5% FSD Cable Length: 1 m 11. PAR-Quantum sensor with 2m cable Range: 2000m mol/m2/sec Resolution : 0.01m mol/m2/sec Accuracy: 5% FSD Excitation Voltage : None passive Quantum PAR Cosine Corrected (PAR; 400 to 700nm) Cable Length : 5 meter 12. Automatic Evapo-transpiration Calculation logged as a Virtual Sensor