Campbell ClimaVUE 50 Product Manual
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Campbell ClimaVUE 50 Product Manual

Compact digital weather sensor
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Revision: 10/2020
Copyright © 2018 – 2020
Campbell Scientific, Inc.

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Summary of Contents for Campbell ClimaVUE 50

  • Page 1 Revision: 10/2020 Copyright © 2018 – 2020 Campbell Scientific, Inc.

  • Page 2: Table Of Contents

    Table of contents 1. Introduction 2. Precautions 3. Initial inspection 4. QuickStart 5. Overview 5.1 Drip counter rain gage 5.2 Pyranometer 5.3 Anemometer 5.4 Relative humidity sensor 5.5 Thermistor 5.6 Tilt sensor 5.7 Barometric pressure sensor 5.8 Lightning sensor 6. Specifications 7.
  • Page 3 8.5 Effects of bird spike kit on solar radiation data 8.5.1 Proper installation 9. Troubleshooting and maintenance 9.1 Maintenance and calibration 9.2 Troubleshooting Appendix A. Importing Short Cut code into CRBasic Editor Appendix B. Determining True North and sensor orientation Appendix C.

  • Page 4: Introduction

    Ensure that the ClimaVUE 50 is properly wired to the data logger before applying power. Applying power when incorrectly wired could damage the ClimaVUE 50 beyond repair. When mounting the ClimaVUE 50 to the mast, do not over-tighten the V bolt as it will cause the plastic to break.

  • Page 5: Initial Inspection

    The ClimaVUE 50 must be mounted within 2 degrees of level on a mast that will not tilt in the wind for the rain sensor to work. The built-in bubble level and the internal tilt sensor can be used during installation to level the ClimaVUE 50 to within these specifications.
  • Page 6 Short Cut is available as a download on www.campbellsci.com. It is included in installations of LoggerNet, RTDAQ, PC400, and PC200W. The following procedure also shows using Short Cut to program the ClimaVUE 50. 1. Open Short Cut and click Create New Program.
  • Page 7 (C) and change it to an unused control terminal, then use the ClimaVUE 50 factory default address of 0 for the SDI-12 address. If an unused control terminal is not available, type a new SDI-12 address in the SDI-12 address box, then...
  • Page 8 If your scan rate is longer than 10 seconds (s), the ClimaVUE 50 will be measured every scan. If it's less than 10 s, the ClimaVUE 50 will be measured every 10 s and your scan rate must be evenly divisible into 10 s.

  • Page 9: Overview

    ClimaVUE 50 is ideal for long-term, remote installations. Upon power up, the ClimaVUE 50 initializes an internal timer to 55. This internal timer is incremented by 1 every second and resets to 0 after incrementing to 59. In addition, issuing an averaging command (M!, R0!, R3!, R7!, and C!) resets this timer to 55.

  • Page 10: Drip Counter Rain Gage

    CR800 series, CR300 series, and CR1000 5.1 Drip counter rain gage The ClimaVUE 50 has a 9.31-cm diameter rain-collection funnel. A spring in the funnel acts as a filter to keep out large particles while allowing enough flow so water does not back up. Rain collected by the funnel exits the funnel through a precision flared hole that forms the rain into drops of a known size.

  • Page 11: Pyranometer

    The ClimaVUE 50 calculates wind speed by measuring differences in the time it takes for sound to travel back and forth between the transducers.

  • Page 12: Thermistor

    After initial leveling with a small level or the built-in bubble level, the internal tilt sensor helps users keep the ClimaVUE 50 level. Regularly check the X and Y tilt data. Adjust the ClimaVUE 50 leveling if it has tilted. More than two degrees off level can cause errors in the rain and solar radiation measurements.

  • Page 13: Specifications

    0 to 50 mm hr Tilt ±90 0.1° ±1° Lightning strike variable with distance, 0 to 65535 strikes 1 strike count >25% detection at <10 km, typical Lightning average 0 to 40 km 3 km variable distance ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 14 FIGURE 6-1. Vapor pressure accuracy at different temperatures and relative humidity FIGURE 6-2. Relative humidity accuracy at different temperatures and relative humidity ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 15 Power line slew rate: 1.0 V/ms (use an oscilloscope to measure the voltage at the power input to the sensor as it is turned on to ensure it is supplying 1 V per millisecond or faster) ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 16: Installation

    Ensure that the solar radiation sensor is not shaded. 7.2 Mounting The ClimaVUE 50 includes a V-bolt for mounting to a pipe with a nominal outer diameter of 31.8 to 50.8 mm (1.25 to 2.0 in). The CM310 mounting pole is recommended to mount the ClimaVUE 50 with a small enclosure and solar panel (no other sensors).

  • Page 17: Mounting Procedure

    (FIGURE 7-1 (p. 14)). FIGURE 7-1. ClimaVUE50, MetSENS, or WindSonic Mounting Pipe Kit and crossarm 2. Loosely mount the ClimaVUE 50 to the tripod mast, CM300-series pole, or mounting tube by using the V-bolt, washers, and nuts (FIGURE 7-2 (p. 14)).
  • Page 18 15)). The angle of the instrument mount may need to be adjusted if the mast is not vertical. Shims can be added between the top of the mast and the bottom of the ClimaVUE 50 to achieve level. The sensor must be within ±2° of dead level (0, 0) in both the X and Y directions to accurately measure rainfall and solar radiation.
  • Page 19 (FIGURE 7-5 (p. 16)). CAUTION: Do not over-tighten V-bolt as it will cause the plastic to break. FIGURE 7-5. ClimaVUE 50 with connector cable 6. Mate the extension cable connector to the cable connector shown in FIGURE 7-5 (p. 16).

  • Page 20: Optional Bird Spike Kit

    Effects of bird spike kit on solar radiation data (p. 26). The optional bird-spike kit helps discourage birds from roosting on the ClimaVUE 50. The kit consists of a plastic ring with flexible spikes. When installed, the spikes point upwards and extend 10.2 cm (4 in) above the funnel.
  • Page 21 FIGURE 7-6. Spikes inserted into the plastic ring slots 5. Tug upward on each spike to make sure the spike is pressed in. 6. Position the ring on top of the ClimaVUE 50 with the pyranometer aligned with the triangle between two spikes (FIGURE 7-7 (p.

  • Page 22: Wiring To The Data Logger

    U terminal. Each must have a unique SDI-12 address. Valid addresses are 0 through 9, a through z, and A through Z. The ClimaVUE 50 ships with a default SDI-12 address of 0.

  • Page 23: Programming

    Downloadable example program is available at www.campbellsci.com/downloads/climavue50-example-program. 7.4.1 SDI-12 programming SDI12Recorder() instruction is used to measure a ClimaVUE 50. This instruction sends a request to the sensor to make a measurement and then retrieves the measurement from the sensor. See Sensor measurements (p.

  • Page 24: Operation

    8. Operation 8.1 Sensor measurements The ClimaVUE 50 responds to the standard SDI-12 commands shown in Table 8-1 (p. 22); refer to Table C-4 (p. 47) for extended commands. When using an M!, M1!, or M3! command, the data logger waits for the time specified by the sensor, sends the D! command, pauses its operation, and waits until either it receives the data from the sensor or the sensor timeout expires.
  • Page 25 Table 8-1: Standard ClimaVUE 50 SDI-12 commands SDI-12 command (a is the sensor Values returned Units address) –2 aR7! 1. Solar flux density 2. Precipitation 3. Lightning strike count 4. Strike distance –1 5. Wind speed 6. Wind direction °...
  • Page 26 Table 8-1: Standard ClimaVUE 50 SDI-12 commands SDI-12 command (a is the sensor Values returned Units address) aM1! 1. Tilt North(+)/South(–) orientation ° 2. Tilt West(+)/East(–) orientation ° 3. Compass heading (disabled) ° aM3! 1. Strike distance 2. Relative humidity fraction (0 to 1) 3.
  • Page 27 Table 8-1: Standard ClimaVUE 50 SDI-12 commands SDI-12 command (a is the sensor Values returned Units address) –2 1. Solar flux density 2. Precipitation 3. Lightning strike count 4. Strike distance –1 5. Wind speed 6. Wind direction ° –1 7.

  • Page 28: Measurements At Fast Scan Rates

    8.2 Snow and ice accumulation The ClimaVUE 50 is not heated, so it will not measure frozen precipitation until snow and ice that have accumulated in the funnel melt. In locations with heavy snowfall or long periods below freezing, snow accumulation will fill the funnel and no longer accumulate, leading to inaccurate precipitation measurements even when the precipitation melts.

  • Page 29: Correcting Pressure To Sea Level

    That value (dP) is then added to the absolute pressure measurement returned by the ClimaVUE 50 as seen in the example program. Once that is done, the program shows the pressure conversion to hPa. U. S. Standard Atmosphere and dry air were assumed when Eq.
  • Page 30 On a mostly clear sky day, the error caused by the bird spike kit was a decrease in total solar radiation by 3.0% and 4.7% for two ClimaVUE 50 pyranometer sensors. On a cloudy day, the error caused by the bird spike kit was less than 1%. On a clear sky day, the error caused by the bird spike kit was a decrease in total solar radiation by 2.6% and 5.7%.

  • Page 31: Proper Installation

    FIGURE 8-2. ClimaVUE 50 solar radiation data for 3/9/2019 8.5.1 Proper installation The pyranometer sensor should be in the middle of two wires, indicated by the triangle (FIGURE (p. 28)). Expect increased errors when bird spike kits are not correctly installed (FIGURE 8-4 (p.
  • Page 32 4.5% NOTE: The ClimaVUE 50 with a properly installed bird spike kit was about 1% higher than the control when compared to the baseline data with no bird spike; the other ClimaVUE 50 was about –1% ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 33: Troubleshooting And Maintenance

    (p. 31)), and sintered glass reflection plate (FIGURE 9-3 (p. 32)). CAUTION: Do not touch the temperature sensor when cleaning because it is very delicate and can be damaged if pushed into the body. ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 34 FIGURE 9-1. Temperature sensor and ultrasonic transducer openings FIGURE 9-2. Top view of ClimaVUE 50 ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 35 Gently clean the sonic transducers and do not allow water to enter the ultrasonic sensors (FIGURE 9-1 (p. 31)). Water may corrode the metal parts inside the sensors and ruin them. 3. Clean around posts and between crevices using a dry brush. ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 36 (p. 34)). Use a pipe cleaner or small soft brush to clean the downspout. d. If needed, clean the spring after twisting it loose. Ensure that the gold electrodes are free of debris and contamination. e. Reattach the pyranometer connector. ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 37 Press the funnel down against the spring and turn clockwise until it clicks in place. i. Check the level of the ClimaVUE 50 (either with a torpedo level, bubble level, or the built-in tilt sensor). FIGURE 9-5. Rain gage cutout...

  • Page 38: Troubleshooting

    Maintenance and calibration (p. 30)). 2. Check the sensor level. The ClimaVUE 50 must be within approximately ±2 degrees of dead level (0, 0) in both the X and Y directions to accurately measure rainfall. If not within this ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 39 Use a torpedo level, the bubble level, or the internal tilt measurements to confirm that the ClimaVUE 50 is level. Symptom: No wind speed (–9,990, –9,999 or –7999) 1.

  • Page 40: 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 ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 41: Appendix B. Determining True North And Sensor Orientation

    1. Establish a reference point on the horizon for True North. 2. Sighting down one pair of the ClimaVUE 50 north south posts, aim the pair at True North. If the wind is blowing and a flag or banner can be used to determine the true wind direction, the data logger displayed wind direction reading can be compared to the true wind direction.
  • Page 42 FIGURE B-1. Magnetic declination for the conterminous United States (2015) FIGURE B-2. Declination angles east of True North are subtracted from 360 to get True North ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 43 FIGURE B-3. Declination angles west of True North are added to 0 to get True North ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 44: Appendix C. Sdi-12 Sensor Support

    SDI-12, Serial Data Interface at 1200 baud, is a protocol developed to simplify sensor and data logger compatibility. Only three wires are necessary — serial data, ground, and 12 V. With unique addresses, multiple SDI-12 sensors can connect to a single SDI-12 terminal on a Campbell Scientific data logger.

  • Page 45: Acknowledge Active Command (A!)

    Table C-1: Campbell Scientific sensor SDI-12 command and response set Response Name Command aAb! Change Address b<CR><LF> Start Measurement atttn<CR><LF> aM1!...aM9! Start Concurrent atttnn<CR><LF> aC1!...aC9! Measurement a<values><CR><LF> or aD0!...aD9! Send Data a<values><CRC><CR><LF> aR0!...aR9! Continuous Measurement a<values><CR><LF> aXNNN! Extended Commands a<values><CR><LF>...

  • Page 46: Start Verification Command (Av!)

    When the aM! is issued, the data logger pauses its operation and waits until either it receives the data from the sensor or the time, ttt, expires. Depending on the scan interval of the data logger ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 47: Start Concurrent Measurement Commands (Ac!)

    See the following example. A data logger has three sensors wired into terminal C1. The sensors are addresses X, Y, and Z. The data logger will issue the following commands and receive the following responses: ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 48 Ten seconds later, after a total of 40 seconds have passed, the data logger starts the process of YD0! collecting data from sensor Y by issuing the first D command. The sensor immediately responds with the sensor Y+1+2+3+4+5+6<CR><LF> address and the 6 values. ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 49: Stopping A Measurement Command

    R commands (R0! … R9!). The response to the R commands mirrors the Send Data command (aD0!). A maximum of 75 characters can be returned in the <values> part of the response to the R command. ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 50: Extended Commands

    Operating system (OS) upgrades require additional equipment and extended commands and therefore are not practical for most customers. Contact a Campbell Scientific repair department for assistance if a OS upgrade is needed. Table C-4: ClimaVUE 50 extended commands...

  • Page 51: Changing An Sdi-12 Address

    3. Under Select Device, located in the lower left side of the window, select the CR1000 station. 4. Click Open Terminal. 5. Select All Caps Mode. 6. Press Enter until the data logger responds with the CR1000X> prompt. 7. Type SDI12 and press Enter. ClimaVUE 50 Compact Digital Weather Sensor...

  • Page 52: References

    CR1000X. C.3 References SDI-12 Support Group. SDI-12: A Serial-Digital Interface Standard for Microprocessor-Based Sensors – Version 1.4. River Heights, UT: SDI-12 Support Group, 2017. http://www.sdi- 12.org/current_specification/SDI-12_version-1_4-Dec-1-2017.pdf. ClimaVUE 50 Compact Digital Weather Sensor...
  • Page 53 See Product Details on the Ordering Information pages at www.campbellsci.com. Other manufacturer's products, that are resold by Campbell Scientific, are warranted only to the limits extended by the original manufacturer.
  • Page 54 Campbell Scientific office serves your country. To obtain a Returned Materials Authorization or Repair Reference number, contact your CAMPBELL SCIENTIFIC regional office. Please write the issued number clearly on the outside of the shipping container and ship as directed.
  • Page 55 Do not recharge, disassemble, heat above 100 °C (212 °F), solder directly to the cell, incinerate, or expose contents to water. Dispose of spent batteries properly. 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...
  • Page 56 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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