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Summary of Contents for NR01

Page 1: ...INSTRUCTION MANUAL NR01 Four Component Net Radiation Sensor Revision 9 15 C o p y r i g h t 2 0 0 8 2 0 1 5 C a m p b e l l S c i e n t i f i c I n c...

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Page 3: ...ucts to CSI CSI will return such Products by surface carrier prepaid within the continental United States of America To all other locations CSI will return such Products best way CIP port of entry per...

Page 4: ...g container Campbell Scientific s shipping address is CAMPBELL SCIENTIFIC INC RMA _____ 815 West 1800 North Logan Utah 84321 1784 For all returns the customer must fill out a Statement of Product Clea...

Page 5: ...beginning work Wear a hardhat and eye protection and take other appropriate safety precautions while working on or around tripods and towers Do not climb tripods or towers at any time and prohibit cl...

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Page 7: ...er 11 6 5 Installation of the Radiation Shields 12 6 6 Datalogger Programming 12 6 6 1 Pyranometer Pyrgeometer Measurements 12 6 6 2 Calibration Factors 13 6 7 Instrument Inversion Test 13 7 Operation...

Page 8: ...Specifications 6 6 1 Recommendations for Installation of the NR01 8 6 2 Cable 1 to Datalogger Connections when using Differential Measurements and the 4WPB100 9 6 3 Cable 1 to Datalogger Connections...

Page 9: ...ons READ AND UNDERSTAND the Safety section at the front of this manual Care should be taken when opening the shipping package to not damage or cut the cable jacket If damage to the cable is suspected...

Page 10: ...in the pyrgeometers connection body and is used to prevent dew Measurement of the separate components of the net radiation is useful because it Enhances accuracy by having separately calibrated instr...

Page 11: ...emperature and off course net radiation net value of all SW and LW fluxes can be calculated The NR01 requires leveling a two axis leveling facility is incorporated in the design See Section 6 Installa...

Page 12: ...for 12 hour totals day and night Operating temperature 40 to 80 C Sensitivity All sensors have individual calibration factors Tpyrgeometer PT100 DIN class A Tpyrgeometer accuracy Within 1 C Tpyrgeome...

Page 13: ...Non Linearity 2 5 Directional response for beam radiation Within 25 W m2 Spectral selectivity 5 305 to 2000 nm Temperature response within an interval of 50 C Within 6 10 to 40 C Tilt response Within...

Page 14: ...f view 150 degrees Spectral selectivity Not specified Temperature response within an interval of 50 C Within 6 10 to 40 C Tilt response Within 2 Sensitivity 5 15 V Wm 2 Expected voltage output Meteoro...

Page 15: ...or pyranometer A level is located under the radiation screens 6 2 Mounting The NR01 has a hole suitable for a 1 inch IPS pipe 33 mm diameter for mounting the NR01 onto a CM204 or CM206 crossarm The cr...

Page 16: ...ere Height of installation In case of inverted installation a height of approximately 4 ft 1 5 m above ground is recommended by the WMO to get good spatial averaging Tilt The NR01 should typically be...

Page 17: ...quires one differential channel Please refer to the documentation for that module for further details TABLE 6 2 Cable 1 to Datalogger Connections when using Differential Measurements and the 4WPB100 W...

Page 18: ...rown Single Ended Input Pyrgeometer Up Ref Yellow Pyrgeometer Down Sig Purple Single Ended Input Pyrgeometer Down Ref Grey Shield Shield Ensure that it is cable 1 before connecting TABLE 6 4 Cable 2 C...

Page 19: ...put H PT100 Signal Ref Green U configured as a differential input Differential Input L Current Excite Red U configured as a current excitation Current Excitation IX Current Return Blue U configured as...

Page 20: ...asic dataloggers are provided in the following sections Equations used to calculate solar parameters and measurement details are provided in Section 7 Operation p 13 Complete program examples for a CR...

Page 21: ...nverting the instrument position 180 degrees turn and looking at the output signals The instrument output should have the same magnitude but a reversed sign so to and to For best results perform this...

Page 22: ...radiation hits the sensor perpendicularly normal to the surface sun at zenith 0 degrees angle of incidence zero response occurs when the sun is at the horizon 90 degrees angle of incidence 90 degrees...

Page 23: ...sky For down facing instruments the earth surface reflects part of the solar radiation depending on the local surface properties If there is direct radiation this often is the dominant source of ener...

Page 24: ...lled directional response or cosine response that is close to the ideal cosine characteristic To attain the proper directional and spectral characteristics a pyrgeometer s main components are 1 Thermo...

Page 25: ...components 1 Low temperature radiation from the universe filtered by the atmosphere The atmosphere is transparent for this radiation in the so called atmospheric window around 10 to 15 micrometer wav...

Page 26: ...radiation values in TABLE 7 3 are corrected for sensor temperature The values in TABLE 7 4 are not corrected for sensor temperature On a smaller timescale the most important factors are solar position...

Page 27: ...c recommends activating the heater to avoid dew deposition During the day the window heating offset may affect the downward facing pyrgeometer s output This can produce a maximum error of 15 W m2 At n...

Page 28: ...nternal connections see TABLE B 3 The sensor signal is unrealistically high or low Check if the right calibration factors are entered into the algorithm Please note that each sensor has its own indivi...

Page 29: ...vg SR01 Down short wave radiation Avg IR01 Up long wave radiation Avg IR01 Down long wave radiation Avg NR01 temperature degrees C Avg NR01 temperature degrees K Avg Net shortwave radiation Avg Net lo...

Page 30: ...Public IR01UpCo Public IR01DnCo Units Batt_Volt Volts Units SR01Up W m2 Units SR01Dn W m2 Units IR01Up W m2 Units IR01Dn W m2 Units NR01TC Deg C Units NR01TK K Units NetRs W m2 Units NetRl W m2 Units...

Page 31: ...lbedo UpTot DnTot NetTot IR01UpCo and IR01DnCo For the CR1000 use autorange for the SR01 measurements due to the wide dynamic range VoltDiff SR01Up 1 autorange 1 True 0 _50Hz SR01UpCal 0 VoltDiff SR01...

Page 32: ...o Avg Total Net radiation Avg temperature corrected IR01 Up Avg temperature corrected IR01 Down CR3000 Datalogger ANALOG INPUT 1H SR01 UP downwelling shortwave radiation signal red 1L SR01 UP downwell...

Page 33: ...False Average 1 NetRl FP2 False Average 1 Albedo FP2 False Average 1 UpTot FP2 False Average 1 DnTot FP2 False Average 1 NetTot FP2 False Average 1 IR01UpCo FP2 False Average 1 IR01DnCo FP2 False EndT...

Page 34: ...temperature RH probe is not used The algorithm turns the heater on off at 4 Hz The duty cycle of the pulse is changed depending on how close the radiometer body temperature is to the dewpoint tempera...

Page 35: ...5 Const NR01_SHORT_UW_CAL 1000 13 93 Unique NR 01 shortwave upwelling multiplier 1000 13 5 Const NR01_LONG_DW_CAL 1000 8 8 Unique NR 01 longwave downwelling multiplier 1000 10 5 Const NR01_LONG_UW_CAL...

Page 36: ...ample 1 rh_hmp_mean IEEE4 Sample 1 t_dew_hmp_mean IEEE4 Sample 1 duty_cycle IEEE4 Average 9 Rn IEEE4 FALSE EndTable DataTable scratch TRUE 1 TableHide DataInterval 0 5 Min 10 Average 1 t_hmp IEEE4 FAL...

Page 37: ...using 4 Hz pulse width modulation Below the dew point temperature applies 100 power Above the dew point power is reduced linearly to 20 until the dew point plus DELTA_SET_POINT_1 After the dew point...

Page 38: ...Appendix A Example Programs A 10...

Page 39: ...Pyranometer Down Sig 8 Green Pyranometer Down Ref 7 Brown Pyrgeometer Up Sig 4 Yellow Pyrgeometer Up Ref 3 Purple Pyrgeometer Down Sig 6 Grey Pyrgeometer Down Ref 5 Clear Shield Ground 11 12 The conne...

Page 40: ...f the NR01 for servicing purposes only PCB04 Connection PCB04 Terminal PCB05 Connection PCB05 Terminal Polarity 3 8 Pyrgeometer UP 4 7 Pyrgeometer UP 5 12 Pyrgeometer DOWN 6 11 Pyrgeometer DOWN 13 Pyr...

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Page 42: ...ua Apinag s nbr 2018 Perdizes CEP 01258 00 S o Paulo SP BRASIL www campbellsci com br vendas campbellsci com br Campbell Scientific Canada Corp 14532 131 Avenue NW Edmonton AB T5L 4X4 CANADA www campb...

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