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Campbell 110PV Instruction Manual

Surface; temperature probe
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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 .

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Summary of Contents for Campbell 110PV

  • Page 1 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 ,...
  • 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.

  • 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. Cautionary Statements ..........1 3. Initial Inspection ............1 Ships With ....................
  • Page 8 Steinhart-Hart error ................7 6-2. 110PV measured with a 3-wire half bridge ......... 7 6-3. 110PV measured with a CR1000 using a 4-wire half bridge ....8 7-1. Types of PV modules ................9 7-2. 110PV mounted to a PV module using Kapton tape ......10 7-3.

  • Page 9: Introduction

    Do not use epoxy to secure the 110PV to a PV module. • Prying the 110PV off without heating it will likely damage both the probe • and PV module. The 110PV’s cable must be properly strain relieved after mounting the •...

  • Page 10: Ships With

    (2) Cable tie, 4-inch, UV stabilized (pn 2207) (1) Resource DVD Quickstart Short Cut is an easy way to program your datalogger to measure the 110PV and assign datalogger wiring terminals. The following procedure shows using Short Cut to program the 110PV.
  • Page 11 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: Overview

    FIGURE 5-1). The aluminum disk protects the thermistor and promotes heat transfer from surfaces. An adhesive tab on the probe’s aluminum disk fastens the 110PV to the measurement surface. If the temperature may exceed 70 °C, also use Kapton tape (pn 27015) to secure the probe to the measurement...

  • Page 13: Specifications

    Connector that attaches to a prewired enclosure (option –PW). Refer www.campbellsci.com/prewired-enclosures for more information. • Connector that attaches to a CWS900 Wireless Sensor Interface (option –CWS). The CWS900 allows the 110PV to be used in a wireless sensor network. Refer to www.campbellsci.com/cws900 more information. Specifications Features: •...
  • Page 14 110PV Surface Temperature Probe Temperature Range: –40 to 135 °C Survival Range: –50 to 140 °C Accuracy Worst Case: ±0.2 °C (–40 to 70 °C) ±0.5 °C (71 to 105 °C) ±1 °C (106 to 135 °C) Maximum Steinhart-Hart Linearization Error: 0.0024 °C at –40 °C...

  • Page 15: Steinhart-Hart Error

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

  • Page 16: Installation

    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 photocell that is the middle of the PV module.

  • Page 17: Mounting To A Pv Module Or Other Device

    FIGURE 7-1. Types of PV modules Mounting to a PV Module or Other Device The 110PV includes an adhesive mounting strip adhered to the flat surface of the aluminum disk. To mount the 110PV, remove the paper from the mounting strip and adhere it to the back of the PV module or other device.

  • Page 18: Cable Strain Relief

    The 110PV’s cable must be properly strain relieved after mounting the probe to the measurement surface. 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 and FIGURE 7-3).

  • Page 19: Submersion

    110PV Surface Temperature Probe Submersion The 110PV can be submerged to 15 m (50 ft). It must be adhered to a dry, clean surface before submerging. The probe’s adhesive mounting strip is not intended for submersion. Therefore, the 110PV must be mounted to the measurement surface with a user-supplied method that is compatible with submersion.

  • Page 20: 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() instruction requires fewer input channels. A typical BrHalf4W() instruction is: BrHalf4W(Dest,1,mV2500,mV2500,1,Vx1,1,2500,True ,True ,0,250,1.0,0)

  • Page 21: Operation

    FIGURE 8-1. 110PV Thermistor Probe schematic Measurement Details Understanding the details in this section 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:...

  • Page 22: Electrical Noisy Environments

    AC power lines, pumps, and motors, can be the source of electrical noise. If the 110PV probe or datalogger is located in an electrically noisy environment, the 110PV probe should be measured with the 60 or 50 Hz rejection option as shown in Appendix B.1.1, Half Bridge CR1000 Program , and Appendix (p.

  • Page 23: 110Pv Measured With A Cr1000 Showing Effects Of Cable Length When Using A Cable Offset

    110PV Surface Temperature Probe 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: 110Pv Measured With A Cr200(X) Showing Effects Of Cable Length When A Cable Offset Is Used

    110PV Surface Temperature Probe 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: Maintenance And Troubleshooting

    (p. 11) damage and possible moisture intrusion. CAUTION 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. Prying the probe off without heating it will likely damage both the probe and the PV module.
  • Page 26 110PV Surface Temperature Probe...

  • Page 27: Importing Short Cut Code

    Appendix A. Importing Short Cut Code 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 that can be imported into either CRBasic Editor.

  • Page 29: Example Programs

    B.1 CR1000 Programs B.1.1 Half Bridge CR1000 Program 'CR1000 Series Datalogger 'This example program measures a single 110PV-L probe utilizing 'the BrHalf instruction once a second and stores the average 'temperature in degrees C every 10 minutes. '110PV-L Wiring Configuration...
  • Page 30 ' Measure 110PV-L probe BrHalf (T110PV_mV,1,mV2500,1,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...

  • Page 31: 4-Wire Half Bridge Cr1000 Program

    Appendix B. Example Programs B.1.2 4-Wire Half Bridge CR1000 Program 'CR1000 Series Datalogger 'This example program measures a single 110PV-L probe utilizing the 'BRHalf4Winstruction once a second and stores the 'average temperature in degrees C every 10 minutes. '110PV-L Wiring Configuration...

  • Page 32: Example Cr200X Program

    ' Measure 110PV-L probe with SE1 ExDelSE (T110PV_mV,1,1,Ex1,mV2500,500,1.0,0) ' Convert mV to ohms T110PV_Res = 4990*(2500/T110PV_mV)-4990 ' 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...

  • Page 33: Probe Material Properties

    Appendix C. Probe Material Properties The probe consists of 6061 aluminum (clear anodized), thermistor, 3M9485PC adhesive, and Santoprene ® jacketed cable. C.1 3M 9485PC Adhesive Humidity Resistance: High humidity has a minimal effect on adhesive performance. Bond strengths are generally higher after exposure for 7 days at 90 °F (32 °C) and 90% relative humidity.
  • Page 34 Appendix C. Probe Material Properties...
  • Page 35 Appendix C. Probe Material Properties...
  • Page 36 Appendix C. Probe Material Properties...
  • Page 38 • 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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