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Campbell 110PV Product Manual

Surface temperature probe
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Revision: 07/2020
Copyright © 2010 – 2020
Campbell Scientific
CSL I.D - 897

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Summary of Contents for Campbell 110PV

  • Page 1 Revision: 07/2020 Copyright © 2010 – 2020 Campbell Scientific CSL I.D - 897...
  • Page 3 Quotations for repairs can be given on request. It is the policy of Campbell Scientific to protect the health of its employees and provide a safe working environment, in support of this policy a “Declaration of Hazardous Material and Decontamination”...
  • Page 5 PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North American market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in...
  • Page 7 • 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...

  • Page 9: Table Of Contents

    Table of contents 1. Introduction 2. Precautions 3. Initial inspection 4. QuickStart 5. Overview 6. Specifications 7. Installation 7.1 Placement on a photovoltaic (PV) module 7.2 Mounting/cable strain relief 7.2.1 Adhesive mounting strip 7.2.2 Cable strain relief 7.2.3 Extreme sealing tape 7.3 Wiring 7.4 Data logger programming 7.4.1 Resistance measurement...

  • Page 11: Introduction

    1. Introduction The 110PV temperature probe uses a thermistor to measure temperature from –40 to 135 °C. It is designed for measuring the back-of-photovoltaic (PV) module temperature but also can be used to measure other surface temperatures. The 110PV is compatible with all Campbell Scientific data loggers.

  • Page 12: Initial Inspection

    3. Initial inspection Upon receipt of the 110PV, inspect the packaging and contents for damage. File damage claims with the shipping company. The model number, cable length, and cable resistance are printed on a label at the connection end of the cable. Check this information against the shipping documents to ensure the expected product and cable length are received.
  • Page 13 3. In the Available Sensors and Devices box, type 110PV. You can also locate the sensor in the Sensors > Temperature folder. Double-click 110PV. The surface temperature defaults to degree C. This can be changed by clicking the Temperature box and selecting one of the other options.
  • Page 14 9. If the sensor is connected to the data logger, check the output of the sensor in the data logger support software data display in LoggerNet, RTDAQ, PC400, or PC200W to make sure it is making reasonable measurements. 110PV Surface Temperature Probe...

  • Page 15: Overview

    An adhesive tab on the aluminium disk fastens the 110PV to the measurement surface. If the temperature may exceed 70 °C, also use extreme sealing tape to secure the probe to the measurement surface.

  • Page 16: Specifications

    FIGURE 5-1. 110PV temperature probe 6. Specifications Temperature range: –40 to 135 °C Survival range: –50 to 140 °C Accuracy ±0.2 °C (–40 to 70 °C) Worst case: ±0.5 °C (71 to 105 °C) ±1 °C (106 to 135 °C) Maximum Steinhart-Hart linearization error:...

  • Page 17: Installation

    PV module. If the module has several distinctive photocells, center the sensor on the back of the photocell that is the middle of the PV module. 110PV Surface Temperature Probe...

  • Page 18: Mounting/Cable Strain Relief

    The cable must be properly strain relieved after mounting the 110PV to the measurement surface. To accomplish this, the 110PV comes with cable ties and a cable tie mount. A yellow label on the cable indicates where the cable should be tied down (FIGURE 7-1 (p.

  • Page 19: Extreme Sealing Tape

    FIGURE 7-1. 110PV strain relief label 7.2.3 Extreme sealing tape If the temperature might exceed 70 °C, extreme sealing tape is required to better secure the sensor to the measurement surface. To ensure that the sensor disk is adequately fastened to the measurement surface, use three strips of extreme sealing tape in two places each: 1.

  • Page 20: Wiring

    Campbell Scientific data loggers. Either a 4-wire half bridge or 3-wire half bridge configuration can be used to measure the 110PV. The 4-wire half bridge configuration is preferred because it reduces cable errors. The 3-wire half bridge configuration uses fewer terminals.
  • Page 21 FIGURE 7-3. 110PV schematic Table 7-1: Wire colour, function, and data logger connection Data logger connection using Data logger connection using Wire colour Function 4-wire half bridge 3-wire half bridge U configured for voltage U configured for voltage Voltage excitation...

  • Page 22: Data Logger Programming

    BrHalf (T110PV,1,mV5000,1,VX1,1,2500,True,0,60,1.0,0.0) Use a multiplier of 1.0 and offset of 0.0 in the instructions. 7.4.2 Converting resistance measurement to temperature The Steinhart-Hart equation is used to convert the resistance measurement to temperature. Temp_C = (1/(A+B*LN(T110PV_Res)+C*(LN(T110PV_Res))^3))-273.15 110PV Surface Temperature Probe...

  • Page 23: Operation

    8.2 Electrical noisy environments 8.3 Long cable lengths 8.1 Measurement details Understanding the details in this section is not necessary for general operation of the 110PV with our data loggers. Simple half bridge measurement, ignoring cable resistance, has a measured voltage, V, of:...

  • Page 24: Electrical Noisy Environments

    Cable resistance can cause significant error. The 4-wire configuration is the best configuration for long cable lengths. The heat shrink label on the 110PV cable provides the cable resistance (ohms). When using the 2-wire configuration, subtract this cable resistance from the measured resistance value.

  • Page 25: Maintenance

    CAUTION: If the 110PV needs to be sent to Campbell Scientific for repairs, 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 27: Appendix A. Importing Short Cut Code Into Crbasic Editor

    Block. This adds an apostrophe (') to the beginning of each of the highlighted lines, which instructs the data logger compiler to ignore those lines when compiling. The Comment Block feature is demonstrated at about 5:10 in the CRBasic | Features video 110PV Surface Temperature Probe...

  • Page 29: Appendix B. Example Programs

    This appendix provides example CR1000X programs; other data loggers are programmed BrHalf() similarly. CRBasic Example 1 (p. 18) uses the instruction to measure the 110PV and BrHalf4W() CRBasic Example 2 (p. 19) uses the instruction to measure the 110PV. The following table provides wiring for the example programs.
  • Page 30 CRBasic Example 1: Half bridge CR1000X program 'CR1000X Series data logger 'This example program measures a single 110PV-L probe using 'the BrHalf instruction once a second and stores the average 'temperature in degrees C every 10 minutes. 'Declare variables for temperature measurement using Half Bridge configuration...
  • Page 31 CRBasic Example 2: 4-Wire half bridge CR1000X program 'CR1000X Series data logger 'This example program measures a single 110PV-L probe using the 'BRHalf4W instruction once a second and stores the 'average temperature in degrees C every 10 minutes. 'Declare variables for temperature measurement using Half Bridge configuration...

  • Page 33: Appendix C. Sensor Material Properties

    If stored properly, product retains its performance and properties for 24 months from date of manufacture. If the products have been exposed to severe weather conditions, we suggest to precondition the products at the above storage conditions for at least 24 hours before using them. 110PV Surface Temperature Probe...
  • Page 34 Campbell Scientific regional offices Australia France Thailand Location: Garbutt, QLD Australia Location: Vincennes, France Location: Bangkok, Thailand Phone: 61.7.4401.7700 Phone: 0033.0.1.56.45.15.20 Phone: 66.2.719.3399 Email: info@campbellsci.com.au Email: info@campbellsci.fr Email: info@campbellsci.asia Website: www.campbellsci.com.au Website: www.campbellsci.fr Website: www.campbellsci.asia Brazil Germany Location: São Paulo, SP Brazil...

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