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Table of Contents 

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1.

 

Introduction ................................................................. 1

 

2.

 

Cautionary Statements ............................................... 1

 

3.

 

Initial Inspection ......................................................... 1

 

3.1

 

Ships With ............................................................................................ 2

 

4.

 

Quickstart .................................................................... 2

 

5.

 

Overview ...................................................................... 4

 

6.

 

Specifications ............................................................. 5

 

7.

 

Installation ................................................................... 8

 

7.1

 

Placement on a Photovoltaic (PV) Module .......................................... 8

 

7.2

 

Mounting to a PV Module or Other Device ......................................... 9

 

7.3

 

Cable Strain Relief ............................................................................. 10

 

7.4

 

Submersion ........................................................................................ 11

 

7.5

 

Wiring ................................................................................................ 11

 

7.6

 

Datalogger Programming ................................................................... 11

 

7.6.1

 

Resistance Measurement ............................................................. 12

 

7.6.2

 

Converting Resistance Measurement to Temperature ................ 12

 

8.

 

Operation ................................................................... 13

 

8.1

 

Sensor Schematic ............................................................................... 13

 

8.2

 

Measurement Details .......................................................................... 13

 

8.3

 

Electrical Noisy Environments .......................................................... 14

 

8.4

 

Long Lead Lengths ............................................................................ 14

 

9.

 

Maintenance and Troubleshooting ......................... 17

 

9.1

 

Troubleshooting ................................................................................. 17

 

9.2

 

Maintenance ....................................................................................... 17

 

Appendices 

A.

 

Importing Short Cut Code ...................................... A-1

 

B.

 

Example Programs ................................................. B-1

 

B.1

 

CR1000 Programs ............................................................................ B-1

 

B.1.1

 

Half Bridge CR1000 Program................................................... B-1

 

B.1.2

 

4-Wire Half Bridge CR1000 Program ...................................... B-3

 

Summary of Contents for 110PV

Page 1: ...INSTRUCTION MANUAL 110PV Surface Temperature Probe Revision 6 15 C o p y r i g h t 2 0 1 0 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 ...

Page 2: ......

Page 3: ...ducts 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 Incoterms 2010 This warranty shall not apply to any Products which have been subjected to modification misuse neglect improper service accidents of nature or shipping damage This warranty is in lieu...

Page 4: ...ng 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 web site at www campbellsci com repair A completed form must be either emailed to repa...

Page 5: ...fore 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 climbing by other persons Take reasonable precautions to secure tripod and tower sites from trespassers Use only manufacturer recommended parts materials and tools Utility and Electrical You can be ...

Page 6: ......

Page 7: ...ule or Other Device 9 7 3 Cable Strain Relief 10 7 4 Submersion 11 7 5 Wiring 11 7 6 Datalogger Programming 11 7 6 1 Resistance Measurement 12 7 6 2 Converting Resistance Measurement to Temperature 12 8 Operation 13 8 1 Sensor Schematic 13 8 2 Measurement Details 13 8 3 Electrical Noisy Environments 14 8 4 Long Lead Lengths 14 9 Maintenance and Troubleshooting 17 9 1 Troubleshooting 17 9 2 Mainten...

Page 8: ...ounted to a PV module using Kapton tape 10 7 3 110PV s strain relief label 10 8 1 110PV Thermistor Probe schematic 13 8 2 110PV measured with a CR1000 showing effects of cable length when using a cable offset 15 8 3 110PV measured with a CR1000 showing effects of cable length 15 8 4 110PV measured with a CR200 X showing effects of cable length when a cable offset is used 16 8 5 110PV measured with...

Page 9: ...eved after mounting the probe to the measurement surface Section 7 3 Cable Strain Relief p 10 Placement of the 110PV s cable inside a rugged conduit is advisable for long cable runs especially in locations subject to digging mowing traffic use of power tools animals or lightning strikes Santoprene rubber which composes the black outer jacket of the 110PV cable will support combustion in air It is ...

Page 10: ...sign datalogger wiring terminals The following procedure shows using Short Cut to program the 110PV 1 Install Short Cut by clicking on the install file icon Get the install file from either www campbellsci com the ResourceDVD or find it in installations of LoggerNet PC200W PC400 or RTDAQ software 2 The Short Cut installation should place a shortcut icon on the desktop of your computer To open Shor...

Page 11: ...list select the Sensors Temperature Soil Moisture 110PV Click to move the selection to the selected device window Enter the Cable Resistance This value is unique for each 110PV and is printed on the heat shrink label attached to the sensor cable The surface temperature defaults to degree C This can be changed by clicking the Temperature box and selecting one of the other options ...

Page 12: ...ou will be prompted to send the program just created to the datalogger 9 If the sensor is connected to the datalogger as shown in the wiring diagram in step 6 check the output of the sensor in the datalogger support software data display to make sure it is making reasonable measurements 5 Overview The 110PV can provide the photovoltaic PV module temperature for solar energy applications This measu...

Page 13: ...WS900 Wireless Sensor Interface option CWS The CWS900 allows the 110PV to be used in a wireless sensor network Refer to www campbellsci com cws900 for more information 6 Specifications Features Easy to install adhesive strips on the 110PV s smooth face adhere to the back of a solar panel or other device Aluminum disk protects thermistor and promotes heat transfer from surfaces Makes accurate measu...

Page 14: ...in Length 5 72 cm 2 25 in Cable Diameter 0 622 cm 0 245 in Material Disk Anodized Aluminum Cable Jacket Santoprene Cable Probe Connection Santoprene Weight 90 7 g 0 2 lb with 3 2 m 10 5 ft cable 1 FIGURE 6 1 shows the Steinhart Hart error FIGURE 6 2 and FIGURE 6 3 show the temperature uncertainty The overall probe accuracy is a combination of the thermistor s interchangeability specification and t...

Page 15: ...110PV Surface Temperature Probe 7 FIGURE 6 1 Steinhart Hart error FIGURE 6 2 110PV measured with a 3 wire half bridge ...

Page 16: ...ng p 11 Short Cut does this work for you See Section 4 Quickstart p 2 for a Short Cut tutorial 7 1 Placement on a Photovoltaic PV Module The PV module may or may not have distinctive solar cells FIGURE 7 1 If the PV module does not have distinctive solar cells center the 110PV on the back of the PV module If the module has several distinctive photocells center the 110PV on the back of the photocel...

Page 17: ...unt the 110PV remove the paper from the mounting strip and adhere it to the back of the PV module or other device The mounting strip must be adhered to a clean surface for its adhesive to function properly If the temperature might exceed 70 C use Kapton tape pn 27015 to secure the probe to the measurement surface see FIGURE 7 2 PV module without distinctive solar cells PV module with distinctive s...

Page 18: ...ace To accomplish this the probe comes with cable ties and a cable tie mount A yellow label on the 110PV s cable indicates where the cable should be tied down see FIGURE 7 2 and FIGURE 7 3 Placement of the cable inside a rugged conduit is advisable for long cable runs especially in locations subject to digging mowing traffic use of power tools animals or lightning strikes FIGURE 7 3 110PV s strain...

Page 19: ...half bridge method requires two differential input channels and one voltage excitation channel The 3 wire half bridge method uses one single ended input channel and one voltage excitation channel Multiple probes can be connected to the same excitation channel The number of probes per excitation channel is physically limited by the number of lead wires that can be inserted into a single voltage exc...

Page 20: ...ronments p 14 and Section 8 4 Long Lead Lengths p 14 prior to programming your datalogger Measurement details are provided in Section 8 2 Measurement Details p 13 7 6 1 Resistance Measurement The CR6 CR800 CR850 CR1000 CR3000 CR5000 and CR9000 X can use either the BrHalf4W instruction or BrHalf instruction to measure the 110PV The BrHalf4W instruction reduces cable errors but the BrHalf instructio...

Page 21: ...tion is not necessary for general operation of the 110PV Probe with our dataloggers Simple half bridge measurement ignoring cable resistance has a measured voltage V of t EX R V V 990 4 990 4 Where VEX is the excitation voltage 4 990 ohms is the resistance of the fixed resistor and Rt is the resistance of the thermistor The resistance of the thermistor is 1 990 4 V V R EX t The Steinhart Hart equa...

Page 22: ...gh FIGURE 8 5 For each 110PV the cable resistance ohms is printed on the heat shrink label on the sensor cable When measuring the 110PV in a 3 wire configuration the cable resistance can be subtracted from the measured resistance value see Appendix B 1 1 Half Bridge CR1000 Program p B 1 and Appendix B 2 Example CR200X Program p B 4 Alternatively the 110PV L s cable includes leads allowing it to be...

Page 23: ...10PV Surface Temperature Probe 15 FIGURE 8 2 110PV measured with a CR1000 showing effects of cable length when using a cable offset FIGURE 8 3 110PV measured with a CR1000 showing effects of cable length ...

Page 24: ...PV Surface Temperature Probe 16 FIGURE 8 4 110PV measured with a CR200 X showing effects of cable length when a cable offset is used FIGURE 8 5 110PV measured with a CR200 X showing effects of cable length ...

Page 25: ...talogger ground Symptom Incorrect Temperature Verify the multiplier and offset parameters are correct for the desired units Section 7 6 Datalogger Programming p 11 Check the cable for signs of damage and possible moisture intrusion If the 110PV needs to be sent to Campbell Scientific for repairs remember that the probe must be heated to 70 to 80 C before removing it from the measurement surface Pr...

Page 26: ...110PV Surface Temperature Probe 18 ...

Page 27: ...gram 2 Open CRBasic Editor 3 Click File Open Assuming the default paths were used when Short Cut was installed navigate to C CampbellSci SCWin folder The file of interest has a CR6 CR1 CR8 CR3 CR2 or CR5 extension for CR6 CR1000 CR800 CR3000 or CR5000 dataloggers respectively Select the file and click Open 4 Immediately save the file in a folder different from Campbellsci SCWin or save the file wi...

Page 28: ......

Page 29: ... the average temperature in degrees C every 10 minutes 110PV L Wiring Configuration Lead Color CR1000 Channel Description Black VX1 Voltage Excitation Red SE1 Signal Purple AG Signal Reference Blue Not Used N A Green Not Used N A White Not Used N A Clear AG Shield Declare variables for temperature measurement using Half Bridge configuration Public T110PV_mV Public T110PV_Res Public T110PV_Temp_C P...

Page 30: ...500 1 Vx1 1 2500 True 0 _60Hz 1 0 0 Convert mV to ohms T110PV_Res 4990 1 T110PV_mV T110PV_mV Subtract off cable resistance see 110PV L cable for R_cable T110PV_Res T110PV_Res R_cable Using the Steinhart Hart equation to convert resistance to temperature T110PV_Temp_C 1 A B LOG T110PV_Res C LOG T110PV_Res 3 273 15 Convert Celsius to Fahrenheit T110PV_Temp_F T110PV_Temp_C 1 8 32 Call AvgTemp data ta...

Page 31: ... T110PV_Temp_C Public T110PV_Temp_F Declare constants to be used in Steinhart Hart equation Const A 1 129241 10 3 Const B 2 341077 10 4 Const C 8 775468 10 8 Declare variable units Units T110PV_mV millivolts Units T110PV_Res Ohms Units T110PV_Temp_C Deg C Units T110PV_Temp_F Deg F Define a data table for 10 minute averages DataTable AvgTemp 1 1000 DataInterval 0 10 Min 10 Average 1 T110PV_Temp_C F...

Page 32: ... Const A 1 129241 10 3 Const B 2 341077 10 4 Const C 8 775468 10 8 Const R_cable 0 see sensor cable for cable resistance Declare variable units Units T110PV_mV millivolts Units T110PV_Res Ohms Units T110PV_Temp_C Deg C Define a data table for 10 minute averages DataTable AvgTemp 1 1000 DataInterval 0 10 min Average 1 T110PV_Temp_C False EndTable Main Program BeginProg Scan 1 Sec Measure 110PV L pr...

Page 33: ... bond actually shows an increase in strength Temperature Cycling Resistance Bond strength generally increases after cycling four times through 4 hours at 158 F 70 C 4 hours at 20 F 29 C 16 hours at room temperature Chemical Resistance When properly applied adhesive will hold securely after exposure to numerous chemicals including gasoline oil Freon TF sodium chloride solution mild acids and alkali...

Page 34: ...Appendix C Probe Material Properties C 2 ...

Page 35: ...Appendix C Probe Material Properties C 3 ...

Page 36: ...Appendix C Probe Material Properties C 4 ...

Page 37: ......

Page 38: ...om br Campbell Scientific Canada Corp CSC 14532 131 Avenue NW Edmonton AB T5L 4X4 CANADA www campbellsci ca dataloggers campbellsci ca Campbell Scientific Centro Caribe S A CSCC 300 N Cementerio Edificio Breller Santo Domingo Heredia 40305 COSTA RICA www campbellsci cc info campbellsci cc Campbell Scientific Ltd CSL Campbell Park 80 Hathern Road Shepshed Loughborough LE12 9GX UNITED KINGDOM www ca...

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