Automatic Weather Station Automatic Weather Station , Automatic Weather Station , Technical Specifications 1 ) Data Logging And Display Unit : 1 Unit The Data Logger Should Be Connected With A Battery And Its Battery Charger / Solar Panel. The Equipm, KFRI, Peechi-Kerala

Automatic Weather Station Automatic Weather Station , Automatic Weather Station , Technical Specifications 1 ) Data Logging And Display Unit : 1 Unit The Data Logger Should Be Connected With A Battery And Its Battery Charger / Solar Panel. The Equipment Must Have The Facility To Connect To, Minimum 8 Analog And 8 Digital Sensors At A Time. The Sensors Should Be Connected To The Data Logger Using Suitable Connectors. The Current Data Of Each Parameter Must Be Seen And Downloaded Directly In A Pen Drive. Each Logger Should Be Supplied With Two Sets Of Pen Drive And Therefore The Pen Drive Can Be Used As Data Shuttle Device. Channel Input: Analog: 8 Channel. Digital : 8 Channel. Display : Values Of Each Parameter Must Seen On Is Oled Display One By One. Data Logger: The Data Should Be Available In Csv. File. Memory Type : Should Contain Solid-State Memory Of 8 Gb Or More. Computer Communication Port : Inbuilt Usb Port. Weather Proof Covering: The Entire Equipment Must Be Mounted On A Pole At A Convenient Place. The Unit Should Be Well Protected From Rain, Dust, And Have To Design For Hostile And Adverse Weather Conditions Ideal For Forest Application. Long Cable For Remote Observation : Cables Attached To The Sensors Should Have Enough Length To Be For Easy Communication To The Data Logger. Energy Integrators: The Equipment Must Have Equipped With Energy Integrators For Solar Radiation, Wind Velocity, In Order To Estimate The Total Energy Of Solar Radiation Received At A Location Over A Period Of Months Or Years And Cumulative Value Of Volume Of Wind Passed Through The Area Where Equipment Is Installed. This Information Should Be As Separate Channel Information, Which Could Be Used To The Above Estimation. Additional Data Of Sunshine Duration Should Be Provided As From Solar Radiation In The Accuracy Of Minutes. Provision To 2 ) Power: 12 V Dc. With Battery And Battery Charger. ( 12V, 7 Ah Battery ) . Quantity: 2 Nos. 3 ) Sensors : The Sensor And Its Mast Should Have Compatible Design For Installing Inside The Forest Considering The Hostile, Humid Condition Existing In Forest Areas. A ) Air Temperature And Relative Humidity Sensor: • Air Temperature: Range: -10 To 60 0C, Accuracy : + / - 0.1 0C Resolution: 0.1 °C Type Of Sensor: Must Be Thermistor Type Sensor With Copper Temperature Absorption Plates For Fast Temperature Sensing Of Changing Environment. • Relative Humidity Range: 0 To 100 Accuracy: + / - 1.8% Resolution: 1 °C Type Of Sensor: Capacitance Type. Both Air Temperature And Relative Humidity Sensors Should Be Assembled In One Weather Proof Shield:1 Nos. Quantity : 2 Assembled Units ( 2 Air Temperaturesensor And 2 Relative Humidity Sensor ) B ) Wind Velocity Sensor : Made Out Of 3-Cup Rotor With Ir Pick Up. Special Single Teflon Baring Free Rotation Of Cups. Distance Constant: Less Than 3M. Ranges : 0 To 60 M / Sec. + / - 0.3 M / Sec. 0 To 216 Kmph. + / - 1.08 Kmph. Housing Material : Aluminum Housing Threshold Value : Less Than 0.45 M / Sec. Or 1.62 Kmph. Quantity: 2 Nos. C ) Wind Direction Sensor : Shouldmeasure The Direction Of Wind Having Very Low Threshold. Type : Wind Wane With Magnet Coupled Contact Free Coupling Without Wear And Tear, It Should Besuitable For Long Term Operation. ( No Potentiometer Is Used Which Reduces The Life Of The Sensor. ) Range : 0 To 360? + / - 2? Housing Material : Aluminum Housing Threshold Value : Less Than 0.4 M / Sec. Or 1.44 Kmph. Quantity: 2 Nos. D ) Soil Moisture Sensor : Should Based On Capacitance Principle Ideal To Measure Soil Moisture. The Sensor Should Be Suitable Continuous Undistorted And Long-Term Measurements, Which Can Be Installed At Desired Soil Depths Of 20 Cms., 100 Cms. Etc. Range: Flat Range Of 0 To 100%. Accuracy : + / - 2%, Resolution: 0.1% Response Time: Instant Response. One Time Calibration Needed At The Time Of Installation. Software : Additional App Based Software Must Be Available For Automated Calculation Of The Moisture Values For Higher Accurate Measurements. Quantity : 2 Nos E ) Soil Temperature. Semiconductorshould Encased Inside Strong Case To Withstand High Geostatic Pressure In Different Soil Depths, Continuously. More Nos. Used For Different Depths And Undisturbed Measurements Made. Range: 0 To 80 0C, Accuracy: + / - 0.1 0C Resolution : 0.01 0C Quantity : 2 Nos. F ) Incident Solar Radiation: It Should Measure The Incident Solar Radiation In Watts / M2. The Sensor Measures The Incident Solar Radiation Which Is Exposed To The Sunlight. Response Time : Fast Response Better Than 100 Milli Sec. Range: 0 To 1500 W / M2 Accuracy: + / - 1% Response: Less Than 1 Second. Quantity: 2 Nos. G ) Water Current Sensor: It Should Measure The Velocity Of The Flowing Water. Sensor To Measure Velocity Of Water In Streams, Canals, Creek Etc. Measurement Directly To Display The Velocity In Cms / Sec. Measured Value Should Be Always Of A Constant Time Which Gives The Automatic Average Of The Time. Measurement Type : Direct Reading In Cms. / Sec. Electronic Meter With Single Read Out For Current :3½ Lcd Display. Range Of Current : 1 To 400 Cms / Sec, + / - 1% Sensing Threshold Value :Less Than 2 Cms / Sec. Type Of Rotor: Plastic To Measure Low Velocities. Water Current Sensing Method :Savanius Rotor For Sensing At Very Low Ranges. Cable Length :15 Metres. ( Longer Cables On Request ) . Body Material :Delrin And Stainless Steel. Quantity: 2 Nos. H ) Rain Gauge: It Shouldmeasure The Total Rain In Milli Meter Accuracy Using Tipping Bucket Rain Gauge. Self-Emptying Rain Sensor With Measurement Accuracy Of 0.254 Mm / Tip. Type Of Measurement : Tipping Bucket. Volume Of Tip / Bucket : 0.254 Mm. Casing : Metal And Plastic Housing. Data Recording: The Output Of The Sensor Should Be Connected To Data Logger For Continuous Recording Of Rain Data. The Data Received Can Be Presented As Rain Intensity Per Selected Time Or Total Accumulated Rain. Quantity: 2 Nos. 4 ) Mast With Solar Panel: The Sensor Mast Cables And Other Accessories Mustsupplied Along With The Equipment. Quantity: 1 Nos. 5 ) Solar Panel : Solar Panel With Minimum 50 Watts Capacity Should Provide To Charge Theinternal Lithium Battery Supplied Along With The System. Quantity-2 Nos. 6 ) In Case The Existing Aws Have To Be Upgraded Into Wireless Gprs Type, It Should Be Easily Possible Using Additional Add On Board.

INR 500 /-

INR 2500.0 /-

INR 2.50 Lakhs /-

Name of Work: Supply of Automatic Weather Station

Sl. No.	Item Description
1	Automatic Weather Station
2	Technical Specifications 1) Data logging and display unit : 1 unit The data logger should be connected with a battery and its battery charger/Solar Panel. The equipment must have the facility to connect to, minimum 8 analog and 8 digital sensors at a time. The sensors should be connected to the data logger using suitable connectors. The current data of each parameter must be seen and downloaded directly in a Pen drive. Each Logger should be supplied with two sets of pen drive and therefore the Pen drive can be used as data shuttle device. Channel input: Analog: 8 channel. Digital : 8 channel. Display : values of each parameter must seen on is OLED display one by one. Data logger: The data should be available in CSV. File. Memory type : should contain Solid-state memory of 8 GB or more. Computer communication port : Inbuilt USB port. Weather proof covering: The entire equipment must be mounted on a pole at a convenient place. The unit should be well protected from rain, dust, and have to design for hostile and adverse weather conditions ideal for forest application. Long cable for remote observation : cables attached to the sensors should have enough length to be for easy communication to the data logger. Energy Integrators: The equipment must have equipped with energy integrators for solar radiation, Wind velocity, in order to estimate the total energy of solar radiation received at a location over a period of months or years and cumulative value of volume of wind passed through the area where equipment is installed. This information should be as separate channel information, which could be used to the above estimation. Additional data of sunshine duration should be provided as from solar radiation in the accuracy of minutes. Provision to 2) Power: 12 V DC. With battery and Battery charger. (12V, 7 Ah battery). Quantity: 2 nos. 3) Sensors : The sensor and its mast should have compatible design for installing inside the forest considering the hostile, humid condition existing in forest areas. A) Air Temperature and Relative humidity sensor: • Air Temperature: Range: -10 to 60 0C, Accuracy : +/- 0.1 0C Resolution: 0.1 °C Type of sensor: must be Thermistor type sensor with copper temperature absorption plates for fast temperature sensing of changing environment. • Relative Humidity Range: 0 to 100 Accuracy: +/- 1.8% Resolution: 1 °C Type of sensor: Capacitance type. Both Air temperature and Relative Humidity sensors should be assembled in one weather proof shield:1 nos. Quantity : 2 assembled units (2 Air Temperaturesensor and 2 Relative Humidity sensor) B) Wind Velocity sensor : Made out of 3-cup rotor with IR pick up. Special single Teflon baring free rotation of cups. Distance constant: Less than 3m. Ranges : 0 to 60 m/sec. +/- 0.3 m/sec. 0 to 216 Kmph. +/- 1.08 Kmph. Housing material : Aluminum housing Threshold value : Less than 0.45 m/sec. or 1.62 Kmph. Quantity: 2 nos. C) Wind Direction sensor : Shouldmeasure the direction of wind having very low threshold. Type : Wind wane with magnet coupled contact free coupling without wear and tear, it should besuitable for long term operation. (No potentiometer is used which reduces the life of the sensor.) Range : 0 to 360? +/- 2? Housing material : Aluminum housing Threshold value : Less than 0.4 m/sec. or 1.44 kmph. Quantity: 2 nos. D) Soil Moisture sensor : Should Based on capacitance principle ideal to measure soil moisture. The sensor should be suitable continuous undistorted and long-term measurements, which can be installed at desired soil depths of 20 cms., 100 cms. etc. Range: Flat range of 0 to 100%. Accuracy : +/- 2%, resolution: 0.1% Response time: Instant response. One time calibration needed at the time of installation. Software : Additional app based software must be available for automated calculation of the moisture values for higher accurate measurements. Quantity : 2 nos E) Soil Temperature. Semiconductorshould encased inside strong case to withstand high geostatic pressure in different soil depths, continuously. More nos. used for different depths and undisturbed measurements made. Range: 0 to 80 0C, Accuracy: +/- 0.1 0C Resolution : 0.01 0C Quantity : 2 nos. F) Incident Solar radiation: It should measure the Incident Solar radiation in Watts/m2. The sensor measures the incident solar radiation which is exposed to the sunlight. Response time : Fast response better than 100 milli sec. Range: 0 to 1500 W/m2 Accuracy: +/- 1% Response: Less than 1 second. Quantity: 2 nos. G) Water Current sensor: It should measure the velocity of the flowing water. Sensor to measure velocity of water in streams, canals, creek etc. Measurement directly to display the velocity in Cms/sec. Measured value should be always of a constant time which gives the automatic average of the time. Measurement type : Direct reading in cms./sec. Electronic meter with single read out for current :3½ LCD display. Range of current : 1 to 400 cms/sec, +/- 1% Sensing threshold value :Less than 2 cms/sec. Type of rotor: Plastic to measure low velocities. Water current sensing method :Savanius rotor for sensing at very low ranges. Cable length :15 metres. (Longer cables on request). Body material :Delrin and Stainless steel. Quantity: 2 nos. H) Rain Gauge: It shouldmeasure the total rain in milli meter accuracy using tipping bucket rain gauge. Self-emptying rain sensor with measurement accuracy of 0.254 mm/tip. Type of measurement : Tipping bucket. Volume of tip/bucket : 0.254 mm. Casing : Metal and plastic housing. Data recording: The output of the sensor should be connected to Data logger for continuous recording of rain data. The data received can be presented as rain intensity per selected time or total accumulated rain. Quantity: 2 nos. 4) Mast with Solar panel: The sensor mast cables and other accessories mustsupplied along with the equipment. Quantity: 1 nos. 5) Solar panel : Solar panel with minimum 50 watts capacity should provide to charge theinternal Lithium battery supplied along with the system. Quantity-2 nos. 6) In case the existing AWS have to be upgraded into Wireless GPRS type, it should be easily possible using additional add on board.