Campbell SR20-T2 Скачать руководство пользователя | Manualshive

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Содержание SR20-T2

Страница 1: ...Revision 05 2020 Copyright 2018 2020 Campbell Scientific Inc ...

Страница 2: ... 3 Siting 4 4 Mounting procedure 5 5 Wiring 7 6 Analog programming 11 7 Integrated thermistor 12 8 Maintenance and troubleshooting 12 Appendix A Importing Short Cut code into CRBasic Editor 14 Appendix B SR20 T2 example programs 15 Table of Contents i ...

Страница 3: ...gy power production sites 2 QuickStart A video that describes data logger programming using Short Cut is available at www campbellsci com videos cr1000x datalogger getting started program part 3 Short Cut is an easy way to program your data logger to measure the sensor and assign data logger wiring terminals Short Cut is available as a download on www campbellsci com It is included in installation...

Страница 4: ...teorological Solar Radiation folder Double click the SR20 T2 ISO Secondary Standard Pyranometer Type the Sensitivity and temperature coefficient values listed on the calibration sheet These values are unique for each sensor SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 2 ...

Страница 5: ...to the data logger Click OK after wiring the sensor 5 Repeat steps three and four for other sensors 6 In Output Setup type the scan rate meaningful table names and Data Output Storage Interval SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 3 ...

Страница 6: ...on Site the sensor to allow easy access for maintenance while ideally avoiding any obstructions or reflections above the plane of the sensing element It is important to mount the sensor such that a shadow or a reflection will not be cast on it at any time If this is not possible try to choose a site where any obstruction over the azimuth range between earliest sunrise and latest sunset has an elev...

Страница 7: ...ts in the following figure indicate the mounting holes used for this pyranometer 3 Using a diopter in combination with a solar compass install and orient the crossarm on the tripod or the mast If installing the mounting bracket on a vertical pole ensure the pole is truly vertical 4 Secure the mounting bracket to the crossarm or vertical pole using the hardware included with the mounting bracket Th...

Страница 8: ...e mounting bracket is horizontal in two dimensions For pyranometers mounted at an angle set the mounting bracket angle to the desired angle prior to tightening the mounting hardware SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 6 ...

Страница 9: ...tial input1 DIFF H differential high analog voltage input U configured for single ended analog input1 SE single ended analog voltage input Green 5 9 Pyranometer signal reference U configured for differential input1 DIFF L differential low analog voltage input analog ground Brown 4 4 Heater polarity does not matter 1 5 W at 12 VDC Switched heater power SW SW12 SW12V SW Battery switched 12 V Constan...

Страница 10: ...s are automatically configured by the measurement instruction Table 5 2 Pin out wire color function and data logger connection for 4 wire half bridge Wire color Pin out Function Data logger connection PT PW Differential Single ended White 7 7 Pyranometer Signal High U configured for differential input1 DIFF H differential high analog voltage input U configured for single ended analog input1 SE sin...

Страница 11: ...C NC Thermistor Signal U configured for differential input1 DIFF H differential high analog voltage input U configured for differential input1 DIFF H differential high analog voltage input Orange 3 3 Thermistor Signal U configured for differential input1 2 DIFF L differential low analog voltage input 2 U configured for differential input1 2 DIFF L differential low analog voltage input 2 Gray 8 8 V...

Страница 12: ...E 5 1 Schematic of the integrated thermistor 2 wire configuration FIGURE 5 2 Schematic of the integrated thermistor 4 wire configuration SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 10 ...

Страница 13: ...e the maximum in millivolt units 2 Select the smallest input range that is greater than the maximum expected input voltage If electromagnetic radiation can be a problem use an fN1 of 50 or 60 Hz Select 60 Hz Noise Rejection for North America and areas using 60 Hz AC voltage Select 50 Hz Noise Rejection for most of the Eastern Hemisphere and areas that operate at 50 Hz The multiplier converts the m...

Страница 14: ...the Steinhart Hart equation are specific to the thermistor contained in your pyranometer A calibration certificate that lists these coefficients is shipped with each pyranometer In CRBasic the Steinhart Hart equation is entered as a mathematical expression SR20 T2 example programs p 15 8 Maintenance and troubleshooting The SR20 T2 has no service items requiring scheduled replacement There is no ac...

Страница 15: ...ameters for the measurement instructions Check for the presence of strong sources of electromagnetic radiation and use the 50 or 60 Hz integration option in the data logger program if electromagnetic radiation can be a problem Check the cable for damage and ensure that it is properly connected to the data logger SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 13 ...

Страница 16: ...finement NOTE Once the file is edited with CRBasic Editor Short Cut can no longer be used to edit the program it created 2 To add the Short Cut wiring information into the new CRBasic program open the DEF file located in the C campbellsci SCWin folder and copy the wiring information which is at the beginning of the DEF file 3 Go into the CRBasic program and paste the wiring information into it 4 I...

Страница 17: ...r supplied wire CRBasic Example 1 CR1000X 2 wire configuration for measuring the SR20 T2 CR1000X Series Data Logger Hukseflux SR20 T2 Pyranometer SR20 is a ISO 9060 Secondary Standard pyranometer T2 uses a 10k Ohm thermistor SequentialMode Measurement function S T So a T 2 b T c S T Sensitivity 10 6 V W m 2 at instrument body temperature T So Sensitivity at 20 DegC a b c are temperature coefficien...

Страница 18: ...s SR20T2_SENS_TC uV W m 2 DataTable OneMin 1 1 DataInterval 0 1 Min 10 Average 1 SR20T2_IRR IEEE4 False Average 1 SR20T2_IRR_TC IEEE4 False Maximum 1 SR20T2_IRR_TC IEEE4 False False Minimum 1 SR20T2_IRR_TC IEEE4 False False StdDev 1 SR20T2_IRR_TC IEEE4 False Average 1 SR20T2_BodyTemp IEEE4 False EndTable DataTable SR20_T2_MetaData 1 1 DataInterval 0 1 Hr 10 Average 1 SR20T2_SENS_TC IEEE4 False Max...

Страница 19: ...tialMode Measurement function S T So a T 2 b T c S T Sensitivity 10 6 V W m 2 at instrument body temperature T So Sensitivity at 20 DegC a b c are temperature coefficients determined from second order polynomial fit Calibration Constants for Irradiance and Temperature SN 4971 Const SR20T2_SENS_So 16 12 uV W m 2 20 DegC Const SR20_A 7 3905E 6 Deg C 2 Const SR20_B 0 3711E 4 Deg C 1 Const SR20_C 1 00...

Страница 20: ...verage 1 SR20T2_BodyTemp IEEE4 False EndTable DataTable SR20_T2_MetaData 1 1 DataInterval 0 1 Hr 10 Average 1 SR20T2_SENS_TC IEEE4 False Maximum 1 SR20T2_SENS_TC IEEE4 False False Minimum 1 SR20T2_SENS_TC IEEE4 False False StdDev 1 SR20T2_SENS_TC IEEE4 False EndTable BeginProg Scan 1 Sec 0 0 VoltDiff SR20T2_mV 1 mV200 1 True 0 _60Hz 1 0 0 SR20T2_IRR SR20T2_mV 1000 SR20T2_SENS_So BrHalf4W Rs 1 mV50...

Страница 21: ...ple 2 CR1000X 4 wire configuration for measuring the SR20 T2 SW12 SW12_1 0 0 EndIf CallTable OneMin CallTable SR20_T2_MetaData NextScan EndProg SR20 T2 ISO Spectrally Flat Class A Secondary Standard Pyranometer 19 ...

Страница 22: ...Other manufacturer s products that are resold by Campbell Scientific are warranted only to the limits extended by the original manufacturer Refer to www campbellsci com terms warranty for more information CAMPBELL SCIENTIFIC EXPRESSLY DISCLAIMS AND EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Campbell Scientific hereby disclaims to the fullest extent allow...

Страница 23: ...e shipping 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 Cleanliness and Decontamination form and comply with the requirements specified in it The form is available from our website at www campbellsci com repair A completed form must be either emailed ...

Страница 24: ...or around tripods and towers l Do not climb tripods or towers at any time and prohibit climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers l Use only manufacturer recommended parts materials and tools Utility and Electrical l You can be killed or sustain serious bodily injury if the tripod tower or attachments you are installing constructing usin...

Страница 25: ...info campbellsci fr www campbellsci fr Germany Location Phone Email Website Bremen Germany 49 0 421 460974 0 info campbellsci de www campbellsci de India Location Phone Email Website New Delhi DL India 91 11 46500481 482 info campbellsci in www campbellsci in South Africa Location Phone Email Website Stellenbosch South Africa 27 21 8809960 sales campbellsci co za www campbellsci co za Spain Locati...

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