1. Manuals
  2. Brands
  3. Campbell Manuals
  4. Measuring Instruments
  5. LP02
  6. Instruction manual

Campbell LP02 Instruction Manual

Pyranometer
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
LP02 Pyranometer
Revision: 1/14
C o p y r i g h t
©
2 0 0 6 - 2 0 1 4
C a m p b e l l
S c i e n t i f i c ,
I n c .

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LP02 and is the answer not in the manual?

Questions and answers

Related Manuals for Campbell LP02

Summary of Contents for Campbell LP02

  • Page 1 LP02 Pyranometer Revision: 1/14 C o p y r i g h t © 2 0 0 6 - 2 0 1 4 C a m p b e l l S c i e n t i f i c ,...
  • Page 3 Campbell pricelist or product manual. Products not manufactured, but that are re-sold by Campbell, are warranted only to the limits extended by the original manufacturer. Batteries, fine-wire thermocouples, desiccant, and other consumables have no warranty.
  • 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: Table Of Contents

    9. Troubleshooting............16 Appendix A. CM245 Adjustable Angle Mounting Stand .... A-1 Installation ..................A-1 Figures 4-1. CM225 Bracket Attached to a Crossarm ..........2 4-2. CM225 Bracket Attached to a Mast ............. 3 4-3. LP02 Mounting Hole ................3...
  • Page 6 Table of Contents 4-4. CM225 Bracket Mounting Holes ............4 4-5. LP02 Pyranometer Attached to CM225 Solar Sensor Mounting Stand ....................4 7-1. LP02 Schematic ................. 10 A-1. CM245 bracket with 2.125 in. U-bolts positioned to mount the pyranometer horizontally on a crossarm ........A-1 A-2.

  • Page 7: Introduction

    Section 4, Quick Start • Cautionary Statements • Although the LP02 is rugged, it is also a highly precise scientific instrument and should be handled as such. Care should be taken when opening the shipping package to not damage or •...

  • Page 8: Quickstart

    It is important to mount the LP02 such that a shadow 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 elevation not exceeding 5°.

  • Page 9: Cm225 Bracket Attached To A Mast

    LP02 Pyranometer FIGURE 4-2. CM225 Bracket Attached to a Mast 2. Place the LP02 in the center of the CM225 with the cable pointing to the nearest magnetic pole, and align the sensor’s mounting holes with two of the bracket’s mounting holes (see FIGURE 4-3 and FIGURE 4-4).

  • Page 10: Cm225 Bracket Mounting Holes

    (2) Mounting Screws CM200 Series Crossarm FIGURE 4-5. LP02 Pyranometer Attached to CM225 Solar Sensor Mounting Stand 4. Starting with the leveling screw nearest the bubble level, turn the leveling screws to bring the bubble of the bubble level within the ring (see...

  • Page 11: Use Scwin To Program Datalogger And Generate Wiring Diagram

    (see FIGURE 4-5). Use SCWin to Program Datalogger and Generate Wiring Diagram The simplest method for programming the datalogger to measure the LP02 is to use Campbell Scientific’s SCWin Program Generator. 1. Open Short Cut and click on New Program.
  • Page 12 LP02 Pyranometer 3. Select LP02 Pyranometer, and select the right arrow (in center of screen) to add it to the list of sensors to be measured, and then select Next. 4. Enter the Sensitivity supplied on the manufacturer’s certificate of calibration;...
  • Page 13 LP02 Pyranometer 5. Choose the Outputs and then select Finish. 6. In the Save As window, enter an appropriate file name and select Save. 7. In the Confirm window, click Yes to download the program to the datalogger. 8. Click on Wiring Diagram and wire according to the wiring diagram...

  • Page 14: Overview

    Two LP02s can be used in combination to measure albedo. The LP02 can also be used to measure most types of artificial light (Xenon lamps, Halogen lamps, etc.).
  • Page 15 LP02 Pyranometer Compatible Dataloggers: CR800 CR850 CR1000 CR3000 CR9000(X) CR5000 CR23X CR10(X) CR510 CR500 Overall classification according to ISO 9060 / WMO: Second class pyranometer Response time for 95% response: 18 s Zero offset (response to 200 W m –2 thermal radiation): <15 W m...

  • Page 16: Operation

    LP02 Pyranometer Operation Wiring A schematic diagram of the LP02 is shown in FIGURE 7-1. White Green Clear FIGURE 7-1. LP02 Schematic When Short Cut is used to create the datalogger program, the sensor should be wired to the channels shown in the wiring diagram created by Short Cut.

  • Page 17: Programming

    Programming examples are given for both average and daily total solar radiation. The LP02 outputs a low level voltage ranging from 0 to a maximum of up to 35 mV, in natural light, depending on the calibration factor and radiation level.

  • Page 18: Multiplier

    Some users may wish to remove small negative readings by including code after the measurement instructions that sets negative readings to zero. 7.2.4 Example Programs The following programs measure the LP02 every 10 seconds and convert the mV output to W m –2 and MJ m –2...

  • Page 19: Cr1000 Example Program

    EndTable 'Main Program BeginProg Scan(10,Sec,1,0) 'LP02 Pyranometer measurement in Wm 'The Multiplier (m) for this example is based upon a sensor calibration (c) of '15.02 µV/Wm , and will be different for each sensor. 'Multiplier (m) = 1000/c = 66.577896.

  • Page 20: Cr10X Example Program

    EndProg 7.2.4.2 CR10X Example Program ;{CR10X} *Table 1 Program 01: 10.0000 Execution Interval (seconds) ; LP02 measurement in Wm 1: Volt (Diff) (P2) 1: 1 Reps 2: 23 25 mV 60 Hz Rejection Range ;use the 50 mV range for the CR7, 21X and CR23X...

  • Page 21: Output Format Considerations

    LP02 Pyranometer 9: Average (P71) 1: 1 Reps 2: 3 Loc [ Solar_Wm2 ] 10: If time is (P92) 1: 0 Minutes (Seconds --) into a 2: 1440 Interval (same units as above) 3: 10 Set Output Flag High (Flag 0)

  • Page 22: Maintenance

    50% in the first hours after sunrise. The calibration of the LP02 may drift with time and exposure to radiation. Recalibration every two years is recommended. The sensor should be returned to Campbell Scientific, the manufacturer, or a calibration lab with facilities to calibrate radiation sensors.
  • Page 23 LP02 Pyranometer Symptom: sensor signal shows unexpected variations Check for the presence of strong sources of electromagnetic radiation (radar, radio etc.) Check the condition and the connection of the sensor shield wire. Check the condition of the sensor cable.
  • Page 24 LP02 Pyranometer...

  • Page 25: Cm245 Adjustable Angle Mounting Stand

    Appendix A. CM245 Adjustable Angle Mounting Stand A.1 Installation The CM245 includes slots that allow it to be adjusted to any angle from horizontal to vertical. If mounting the pyranometer at an angle, ensure that the crossarm is leveled horizontally before placing the bracket at its proper angle. Angle positions are included on the bracket label (see FIGURE A-1 and FIGURE A-2).

  • Page 26: Cm245 Bracket With 1.5 In. U-Bolts Positioned To Mount

    Appendix A. CM245 Adjustable Angle Mounting Stand pn 17446 pn 4365 pn 4366 Second pn 27291 First 1.5 in 1.5 in U-bolt U-bolt pn 17446 1.50 in FIGURE A-2. CM245 bracket with 1.5 in. U-bolts positioned to mount pyranometer at a 40° angle on a vertical pipe Do the following to level the pyranometer horizontally: 1.
  • Page 28 Campbell Scientific Ltd. (CSL Germany) Fahrenheitstraße 13 28359 Bremen GERMANY www.campbellsci.de • info@campbellsci.de Campbell Scientific Spain, S. L. (CSL Spain) Avda. Pompeu Fabra 7-9, local 1 08024 Barcelona SPAIN www.campbellsci.es • info@campbellsci.es Please visit www.campbellsci.com to obtain contact information for your local US or international representative.

Table of Contents