Related Manuals for Campbell LI200RX
Summary of Contents for Campbell LI200RX
- Page 1 LI200RX Pyranometer 6/16 C o p y r i g h t © 1 9 9 4 - 2 0 1 6 C a m p b e l l S c i e n t i f i c ,...
- Page 3 Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service for twelve months from the date of shipment unless otherwise specified in the corresponding product manual. (Product manuals are available for review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by CSI, are warranted only to the limits extended by the original manufacturer.
- Page 4 SCIENTIFIC, INC., phone (435) 227-9000. After an application engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. Campbell Scientific’s shipping address is: CAMPBELL SCIENTIFIC, INC.
- Page 5 Periodically (at least yearly) check electrical ground connections. • WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
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Page 7: Table Of Contents
Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. Introduction ..............1 2. Precautions ..............1 3. Initial Inspection ............2 4. - Page 8 Table of Contents 7-1. LI200RX schematic ................10 Tables 7-1. Datalogger Connections for Differential Measurements ....11 7-2. Multipliers Required for Average Flux and Total Flux Density in Sl and English Units ..............12 B-1. Wiring for Example Programs............B-1 CRBasic Examples B-1.
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Page 9: Introduction
If damage to the cable is suspected, consult with a Campbell Scientific application engineer. • Although the LI200RX is rugged, it should be handled as a precision scientific instrument. • Keep the sensor clean. The vertical edge of the diffuser must be kept clean to maintain appropriate cosine correction. -
Page 10: Initial Inspection
QuickStart Short Cut is an easy way to program your datalogger to measure the LI200RX and assign datalogger wiring terminals. Short Cut is available as a download on www.campbellsci.com and the ResourceDVD. - Page 11 Select Datalogger Model and Scan Interval (default of 5 seconds is OK for most applications). Click Next. Under the Available Sensors and Devices list, select the Sensors | Solar Radiation folder. Select LI200RX Pyranometer. Click to move the selection to the Selected device window. The flux density defaults to kW/m^2 and the total flux defaults to MJ/m^2.
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Page 12: Overview
The LI200RX is calibrated against an Eppley Precision Spectral Pyranometer to accurately measure sun plus sky radiation. Do not use the LI200RX under vegetation or artificial lights because it is calibrated for the daylight spectrum (400 to 1100 nm). FIGURE shows the pyranometer’s spectral response. -
Page 13: Specifications
LI200RX Pyranometer FIGURE 5-1. Pyranometer spectral response The –L portion of the model number indicates that the LI200RX has a user- specified cable length. Its cables can terminate in: Pigtails that connect directly to a Campbell Scientific datalogger • (cable termination option –PT). -
Page 14: Installation
(p. 2) Siting The LI200RX should be mounted such that no shadows or reflections are cast on it by the tripod/tower or other sensors. The sensor should be mounted with the cable pointing towards the nearest magnetic pole. For example, in the Northern Hemisphere, point the cable toward the North Pole. -
Page 15: Mounting To An Instrument Mount
7.2.2 Mounting Procedure 7.2.2.1 LI2003S Mounting The LI200RX must be mounted to the LI2003S to attach the sensor to the CM225 Solar Sensor Mounting Stand or the 015ARM Mounting Arm. To do this, place the LI200RX in the center of the LI2003S base/leveling fixture and secure the LI200RX to the LI2003S by tightening the small Phillips screws. -
Page 16: Cm225 Solar Sensor Mounting Stand
U-bolt nuts. Mounting Screws CM225 Stand CM200 Series U-bolt Nuts Crossarm Loosely mount the LI2003S and LI200RX on the CM225. Do not fully tighten the three mounting screws. Threaded mounting holes used with the LI200RX are indicated in yellow. -
Page 17: 015Arm
LI200RX Pyranometer Route the sensor cable along the underside of the crossarm to the tripod/tower, and to the instrument enclosure. Secure the cable to the crossarm and mast using cable ties. Cable Tie Cable Remove the red cap after installing the sensor. Save this cap for shipping or storing the sensor. -
Page 18: Wiring
LI200RX Pyranometer Loosely mount the LI2003S and LI200RX on the 015ARM. Do not fully tighten the three mounting screws. Threaded mounting holes used with the LI200RX are indicated in yellow. Turn the leveling screws as required to bring the bubble of the bubble level within the ring. -
Page 19: Programming
Appendix B, Example Programs (p. B-1) Programming basics and programming examples for Edlog dataloggers are provided at www.campbellsci.com/old-manuals. Output from the LI200RX is 0.2 kW m –2 –1 , which is measured by the datalogger using the VoltDiff() CRBasic instruction. CRBasic is included in PC400 and LoggerNet datalogger support software. -
Page 20: Total Solar Radiation
LI200RX Pyranometer Solar radiation can be reported as an average flux density (W m –2 ) or daily total flux density (MJ m –2 ). The appropriate multipliers are listed in TABLE 7-2. Programming examples are given for both average and daily total solar radiation. -
Page 21: Maintenance
Send in the entire sensor (not just the head) for recalibration. LI200RX pyranometers output a current that is proportional to the incoming solar radiation. Each LI200RX has a unique calibration factor. A variable shunt resistor in the cable converts the current to the voltage measured by the datalogger. - Page 22 LI200RX Pyranometer...
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Page 23: Importing Short Cut Code Into Crbasic Editor
Appendix A. Importing Short Cut Code Into CRBasic Editor This tutorial shows: How to import a Short Cut program into a program editor for • additional refinement • How to import a wiring diagram from Short Cut into the comments of a custom program Short Cut creates files, which can be imported into CRBasic Editor. -
Page 25: Example Programs
Appendix B. Example Programs The following programs measure the LI200RX every 10 seconds, and converts the mV output to Wm –2 and MJ m –2 . The programs output an hourly average flux (Wm –2 ) and a daily total flux density (MJm –2... -
Page 26: Example Cr6 Program
Scan(10,Sec,1,0) 'Default Datalogger Battery Voltage measurement 'BattV' Battery(BattV) 'Default Wiring Panel Temperature measurement 'PTemp_C' PanelTemp(PTemp_C,60) 'LI200RX Pyranometer measurements 'SlrMJ' and 'SlrW' 'Measurement returns SlrW in millivolts. VoltDiff(SlrW,1,mV200,U1,True,0,60,1,0) 'Set negative value to zero. If SlrW<0 Then SlrW=0 'Convert millivolts to Megajoules/m². - Page 28 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...
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