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Summary of Contents for Campbell CMP6
- Page 1 CMP6, CMP11, and CMP21 Pyranometers Revision: 4/15 C o p y r i g h t © 2 0 0 6 - 2 0 1 5 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
CVF4 Ventilation Unit ................. 9 7. Installation ..............10 Mounting to a Tripod or Tower ............10 Wiring ....................11 7.2.1 CMP6, CMP11, and CMP21 Thermopile Schematic ....12 7.2.2 CMP6 and CMP11 Wiring ............12 7.2.3 CMP21 Wiring ................13 Programming .................. - Page 8 Importing Short Cut Code into a Program Editor ......A-1 B. Example Programs ..........B-1 CR1000 Example Program for Measuring a CMP6 ......B-1 CR1000 Example Program for Measuring a CMP11 ...... B-2 CR1000 Example Program for Measuring a CMP21 ...... B-3 C.
- Page 9 Dataloggers ..................14 7-5. Multipliers Required for Flux Density and Total Fluxes ....16 B-1. CR1000 Wiring for CMP6 Example Program ......... B-1 B-2. CR1000 Wiring for CMP11 Example Program ....... B-2 B-3. CR1000 Wiring for CMP21 Example Program ....... B-3 C-1.
- Page 10 Table of Contents...
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Page 11: Introduction
Initial Inspection Check the contents of the shipment. If there is a shortage (see Section 3.1, Ships With ), contact Campbell Scientific. If any damage has occurred (p. 1) during transport, immediately file a claim with the carrier and contact Campbell Scientific to facilitate repair or replacement. -
Page 12: Calibration Certificate
CMP6, CMP11, and CMP21 Pyranometers Calibration Certificate Each pyranometer is shipped with an instruction manual provided by Kipp & Zonen that contains information concerning its construction, spectral sensitivity, cosine response, and a simple sensor check out procedure. Included with the sensor and manual is a calibration certificate with the sensor sensitivity value and serial number. -
Page 13: Pyranometer Installation
CMP6, CMP11, and CMP21 Pyranometers FIGURE 4-1. Pyranometer installation CM2XX-Series Crossarm FIGURE 4-2. Pyranometer mounted horizontally for the Northern Hemisphere (left) and Southern Hemisphere (right) -
Page 14: Two Views Of A Pyranometer Mounted At An Angle For The Northern Hemisphere
CMP6, CMP11, and CMP21 Pyranometers FIGURE 4-3. Two views of a pyranometer mounted at an angle for the Northern Hemisphere FIGURE 4-4. Pyranometer mounted at an angle for the Southern Hemisphere... -
Page 15: Short Cut Programming
CMP6, CMP11, and CMP21 Pyranometers Short Cut Programming NOTE The CMP21 is not included in Short Cut. Refer to Section 7, , for wiring and programming information if not Installation (p. 10) using Short Cut. Short Cut is an easy way to program your datalogger to measure the pyranometer and assign datalogger wiring terminals. - Page 16 4. 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 Sensors | Meteorological | Solar Radiation folder. Select CMP3/CMP6/CMP11 Pyranometer. Click to move the selection to the Selected device window.
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Page 17: Overview
The –L portion of the model number indicates that the pyranometer has a user- specified cable length. The pyranometers have several cable termination options. Their cables can terminate in: Pigtails that connect directly to a Campbell Scientific datalogger • (cable termination option –PT). -
Page 18: Construction
Compatible with Campbell Scientific CRBasic dataloggers: CR6, • CR200(X) series, CR800 series, CR1000, CR3000, CR5000, and CR9000(X). Pyranometers Dimensions are shown in FIGURE and the other specifications are provided in TABLE 6-1. FIGURE 6-1. Dimensions of the CMP6, CMP11, and CMP21... -
Page 19: Cvf4 Ventilation Unit
CMP6, CMP11, and CMP21 Pyranometers TABLE 6-1. CMP-series Specifications Specification CMP6 CMP11 CMP21 ISO Classification First Class Secondary Standard Maximum irradiance 2000 W•m 4000 W•m –2 –2 Spectral range 285 to 2800 nm (50% points) Response time (95 %) <18 s <5 s... -
Page 20: Installation
CMP6, CMP11, and CMP21 Pyranometers Heater induced offset: <1 W•m (with CMP11 Pyranometer) –2 Weight without cable: 1.6 kg (3.5 lb) Height: 12.95 cm (5.1 in) Length: 35.5 cm (14.0 in) Width: 23.0 cm (9.1 in) Installation If you are programming your datalogger with Short Cut, skip Section 7.2, Wiring , and Section 7.3, Programming... -
Page 21: Wiring
Campbell Scientific application engineer for assistance. The cable of the CMP6 and CMP11 has two conductors and a shield. The cable of the CMP21 has five conductors and a shield. The additional conductors on the CMP21’s cable are for connecting its internal thermistor. A schematic for the CMP6, CMP11, and the thermopile of the CMP21 is provided in Section 7.2.1, CMP6, CMP11, and CMP21 Thermopile Schematic... -
Page 22: Cmp6, Cmp11, And Cmp21 Thermopile Schematic
CMP6, CMP11, and CMP21 Pyranometers 7.2.1 CMP6, CMP11, and CMP21 Thermopile Schematic A schematic diagram of a CMP6, CMP11, or CMP21 thermopile is shown in FIGURE 7-2. White (+) Black (-) Blue Shield Black FIGURE 7-2. CMP6, CMP11, and CMP21 thermopile detector schematic 7.2.2 CMP6 and CMP11 Wiring... -
Page 23: Cmp21 Wiring
TABLE 7-3. A user-supplied jumper wire should be connected between the low side of the differential input and ground (⏚) to keep the signal in common mode range. Connections to Campbell Scientific dataloggers for a single-ended measurement are given in TABLE 7-4. -
Page 24: Programming
CMP6, CMP11, and CMP21 Pyranometers TABLE 7-4. CMP21 Single-Ended Connections to Campbell Scientific Dataloggers Wire Wire Label/ CR9000(X), CR5000, CR3000, Color Description CR1000, CR800, CR6 White Pyranometer Sig Single-ended analog ⏚ Blue Pyranometer Ref Yellow Thermistor Volt Excite Voltage excitation... -
Page 25: Input Range
CMP6, CMP11, and CMP21 Pyranometers Nearby AC power lines, electric pumps, or motors can be a CAUTION source of electrical noise. If the sensor or datalogger is located electrically noisy environment, measurement should be made with the 60 or 50 Hz rejection integration option as shown in the example programs. -
Page 26: Offset
CMP6, CMP11, and CMP21 Pyranometers TABLE 7-5. Multipliers Required for Flux Density and Total Fluxes Units Multiplier Output Processing W•m Average –2 MJ•m M * t * 0.000001 Totalize –2 kJ•m Totalize –2 * 0.001 cal•cm –2 M * t * 0.0239 * 0.001 Totalize M * 1.434 * 0.001... -
Page 27: Maintenance/Troubleshooting
8.1.2 Changing the Desiccant A desiccant-filled drying cartridge prevents dew from forming on the inner sides of the domes; Campbell Scientific pn 27052 is the replacement desiccant for this cartridge. The optional CVF4 Heater/Ventilator Unit is also available to keep the pyranometer dome free from ice and dew (see Appendix C, CVF4 Ventilation Unit ). -
Page 28: Check Sensor Output
Replace the desiccant granules when they become translucent (normally after several months). Refill packs of desiccant are shipped with the pyranometer and can be purchased from Campbell Scientific. The drying cartridge uses the content of one refill pack. FIGURE shows the replacement process. -
Page 29: Recalibration
The calibration of the pyranometer may drift with time and exposure to radiation. Recalibration every two years is recommended. The sensor should be returned to Campbell Scientific for recalibration. A Returned Materials Authorization (RMA) is required (refer to the Assistance page for more information). - Page 30 CMP6, CMP11, and CMP21 Pyranometers...
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Page 31: 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 A.1 Importing Short Cut Code into a Program Editor Short Cut creates files that can be imported into either CRBasic Editor or... - Page 32 Appendix A. Importing Short Cut Code Into CRBasic Editor 6. Import wiring information to the program by opening the associated .DEF file. Copy and paste the section beginning with heading “-Wiring for CRXXX–” into the CRBasic program, usually at the head of the file. After pasting, edit the information such that a ' character (single quotation mark) begins each line.
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Page 33: Example Programs
B.1 CR1000 Example Program for Measuring a CMP6 Although this example is for the CR1000, other CRBasic dataloggers are programmed similarly. The following program measures the CMP6 every second and converts the millivolt output to W•m . A sensor calibration of –2... -
Page 34: Cr1000 Example Program For Measuring A Cmp11
Appendix B. Example Programs B.2 CR1000 Example Program for Measuring a CMP11 Although this example is for the CR1000, other CRBasic dataloggers are programmed similarly. The following program measures the CMP11 every second and converts the millivolt output to W•m . -
Page 35: Cr1000 Example Program For Measuring A Cmp21
Appendix B. Example Programs B.3 CR1000 Example Program for Measuring a CMP21 Although this example is for the CR1000, other CRBasic dataloggers are programmed similarly. The following program measures the CMP21 every second. It converts the pyranometer’s millivolt output to W•m –2 pyranometer calibration of 8.65 µV / W•m is used for the example program. - Page 36 Appendix B. Example Programs ‘Measure the Battery Voltage and Panel Temperature PanelTemp (PTemp,250) Battery (Batt_Volt) ‘Measure the CMP21 pyranometer VoltDiff (CMP21_Irr,1,mV25C,3,True,10000,_60Hz,1000/8.65,0) 'CMP21 Thermistor Measurement BrHalf (Vs_Vx,1,mV5000,15,Vx1,1,2500,True ,0,250,1.0,0) Rs = 1000*(Vs_Vx/(1-Vs_Vx)) CMP21_T_C = 1/(1.0295e-3+2.391e-4*LN(Rs)+1.568e-7*(LN(Rs))^3)-273.15 'Convert CMP21 temp to Kelvin. CMP21_T_K = CMP21_T_C+273.15 CallTable TenMin NextScan EndProg...
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Page 37: Cvf4 Ventilation Unit
CVF4 replaces the successful and widely used CVF3 ventilation unit. The CVF4 is meant to run continuously. The heater can either be switched on permanently for cold regions or be switched by a Campbell Scientific datalogger to remove dew in the morning and be switched off afterwards. In that case, the heater could operate for a period of time before and after sunrise. -
Page 38: Cvf4 Components (Top View, No Cover
Appendix C. CVF4 Ventilation Unit Pyranometer Cover Nut Mounting Holes Heater Ventilator Heater Pyranometer CVF4 Cable Cover Nut Cable Slot Connector FIGURE C-1. CVF4 Components (top view, no cover) Connector Box Mounting Feet Filter Cover Mounting Feet Cover Nut FIGURE C-2. CVF4 Components (bottom view) -
Page 39: Cvf4 Installation
Appendix C. CVF4 Ventilation Unit FIGURE C-3. CVF4 Ventilation Unit and Ships With Kit C.3 CVF4 Installation Siting information provided in Section 4.1, Siting , is pertinent when using (p. 2) the CVF4 heater/ventilation. 1. CVF4 heater/ventilator unit includes the heater/ventilator unit, white cover, cable, and mounting hardware. -
Page 40: Crossarm And 17593 Nu-Rail Mounted To Mast (Exploded View
Appendix C. CVF4 Ventilation Unit To install, do the following: 1. Mount the crossarm to the tripod or tower (FIGURE C-4). U-bolt Washers CM210 Bracket (included with crossarm) U-bolt Nuts 17953 NU-RAIL U-bolts CM200-series Crossarm FIGURE C-4. Crossarm and 17593 NU-RAIL Mounted to Mast (exploded view) 2. - Page 41 Appendix C. CVF4 Ventilation Unit 3. Place the CVF4 (without the white plastic cover) on the 31153 with the fan hanging over the edge of the plate and with the mounting feet lined up with the mounting holes. 4. Fasten the CVF4’s feet to the 31153 using the supplied washers and screws (FIGURE C-6).
- Page 42 Appendix C. CVF4 Ventilation Unit 6. Turn the pyranometer’s leveling screws as required to bring the bubble of the level within the ring. 7. Tighten the pyranometer’s mounting screws to secure the assembly in its final position. Check that the pyranometer is still correctly leveled and adjust as necessary.
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Page 43: Wiring
Appendix C. CVF4 Ventilation Unit C.4 Wiring Wiring of the CVF4 is shown in TABLE C-1. Refer to Section 7.2, Wiring , for information about wiring the pyranometer. TABLE C-1. CVF4 Wiring Wire Color Description Connection Brown Ventilator Power +12V on Power Supply Blue Heater Power +12V on Power Supply... -
Page 44: Cvf4 Example Program
Appendix C. CVF4 Ventilation Unit C.5 CVF4 Example Program 'CR1000 Series Datalogger 'Example program for CVF4 'Declare Public Variables Public PTemp, batt_volt Public GH_Irradiance_CMP11 Public CVF4_Tach Public SolarPos(5) Public Airtemp Public TimeArray(9) 'Declare Constants Const CMP11_Sensitivity = 12.5 Const Latitude = 41.767561 Const Longitude = -111.85592 Const Altitude = 1358 'Define Aliases... -
Page 45: Cvf4 Heater/Ventilator Maintenance
Appendix C. CVF4 Ventilation Unit 'Measure CVF4 Tachometer Output '--------------------------------------------------------------------------- PulseCount (CVF4_Tach,1,1 ,0,1,1.0,0) CVF4_Tach = CVF4_Tach*(60/2) 'convert to RPM, CVF4 outputs two pulses per revolution '--------------------------------------------------------------------------- 'Control the CVF4 Heater '--------------------------------------------------------------------------- If SunElevation > -10 AND SunElevation < 10 Then PortSet (1,1) Else PortSet (1,0) - Page 46 Appendix C. CVF4 Ventilation Unit Ventilator Diagonal Line Filter Filter Cover Cover Diagonal Line FIGURE C-9. CVF4 filter replacement, pn 31435 C-10...
- Page 48 • info@campbellsci.com.cn • info@campbellsci.de www.campbellsci.com www.campbellsci.de Campbell Scientific do Brasil Ltda. (CSB) Campbell Scientific Spain, S. L. (CSL Spain) Rua Apinagés, nbr. 2018 ─ Perdizes Avda. Pompeu Fabra 7-9, local 1 CEP: 01258-00 ─ São Paulo ─ SP 08024 Barcelona...
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