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Campbell cs215 Instruction Manual

Manual is about: temperature and humidity probe

Summary of cs215

  • Page 1

    Cs215 temperature and relative humidity probe revision: 7/12 c o p y r i g h t © 2 0 0 5 - 2 0 1 2 c a m p b e l l s c i e n t i f i c , i n c ..

  • Page 3: Warranty

    Warranty “products manufactured by campbell scientific, inc. Are warranted by campbell scientific, inc. (“campbell”) to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless otherwise specified in the corresponding campbell...

  • Page 4: Assistance

    Assistance products may not be returned without prior authorization. The following contact information is for us and international customers residing in countries served by campbell scientific, inc. Directly. Affiliate companies handle repairs for customers within their territories. Please visit www...

  • Page 5: Cs215 Table of Contents

    Cs215 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............................

  • Page 6

    Cs215 table of contents ii 7.5 changing the sdi-12 address using loggernet and a datalogger ...... 17 7.5.1 cr200(x) series datalogger ....................................................... 17 7.5.2 cr800/cr850 datalogger ........................................................... 18 7.5.3 cr1000 d...

  • Page 7: Humidity Probe

    Cs215 temperature and relative humidity probe 1. Introduction the cs215 temperature and relative humidity probe is designed for general meteorological and other datalogging applications. It utilizes the sdi-12 communications protocol to communicate with any sdi-12 recorder simplifying installation a...

  • Page 8: 4.  Quickstart

    Cs215 temperature and relative humidity probe 4. Quickstart 4.1 step 1 — mount the probe review section 7, installation, for complete instructions. To install the cs215, you will need: • 41305-5a 6-plate radiation shield • 1/2" open end wrench • small screw driver provided with datalogger • small ph...

  • Page 9

    Cs215 temperature and relative humidity probe 41303-5a cs215 tripod or tower mast figure 4-1. Cs215 and 41303-5a radiation shield on a tripod mast 41303-5a cs215 tripod or tower mast cm200 series crossarm figure 4-2. Cs215 and 41303-5a radiation shield on a cm200 series crossarm 3.

  • Page 10

    Cs215 temperature and relative humidity probe 4.2 step 2 — use scwin short cut to program datalogger and generate wiring diagram the simplest method for programming the datalogger to measure the cs215 is to use campbell scientific's scwin short cut program generator. 1. Open short cut and click on n...

  • Page 11

    Cs215 temperature and relative humidity probe 3. Select cs215 temperature and relative humidity sensor then click the right arrow to add it to the list of sensors to be measured. 4. Define the name of the public variables. Variables default to airtc and rh that hold the air temperature and relative ...

  • Page 12: 5.  Overview

    Cs215 temperature and relative humidity probe 5. Choose the outputs for the airtc and rh and then select finish. 6. Wire according to the wiring diagram generated by scwin short cut. 5. Overview the cs215 probe uses a single chip element that incorporates both a temperature and rh sensor. Each eleme...

  • Page 13: 6.  Specifications

    Cs215 temperature and relative humidity probe readings and presents the data via an sdi-12 compatible interface to a datalogger. The probe is fitted with a low-cost sintered plastic filter to minimize the effects of dust and dirt on the sensor. The filter is lightweight and hydrophobic, thereby mini...

  • Page 14

    Cs215 temperature and relative humidity probe 6.1 temperature measurement operating range: -40 ° to +70°c accuracy: ±0.3°c at 25°c, ±0.4°c over +5° to +40°c, ±0.9°c over -40° to +70°c response time with filter: 120 s (63% response time in air moving at 1 m/s) default units: degrees celsius 6.2 relat...

  • Page 15: 7.  Installation

    Cs215 temperature and relative humidity probe the black outer jacket of the cable is santoprene ® rubber. This compound was chosen for its resistance to temperature extremes, moisture, and uv degradation. However, this jacket will support combustion in air. It is rated as slow burning when tested ac...

  • Page 16

    Cs215 temperature and relative humidity probe it is best to protect the filter at the top of the sensor from exposure to liquid water as while the hydrophobic nature of the filter will repel light rain, driving rain can force itself into the pore structure of the filter and then take some time to dr...

  • Page 17

    Cs215 temperature and relative humidity probe • use low capacitance, low resistance, screened cable (as fitted by campbell scientific). With such cable, distances of several hundred meters to the sensor are possible. • ensure that the power ground cable has low resistance and is connected to the sam...

  • Page 18

    Cs215 temperature and relative humidity probe the sensor will automatically switch to making measurements every 11 seconds (±2 second) the first time it receives the ar! Command. It makes the measurements based on its own clock which is not synchronized to the datalogger clock. This means measuremen...

  • Page 19

    Cs215 temperature and relative humidity probe 7.4.2 measurements at fast scan rates 7.4.2.1 crbasic dataloggers crbasic dataloggers that support the slowsequence() function (cr800, cr850, cr1000, cr3000, and cr5000) can run the sdi-12 instruction entirely as a background process causing minimum inte...

  • Page 20

    Cs215 temperature and relative humidity probe 7.4.3 example programs 7.4.3.1 cr200(x) program for measuring one sensor every 30 seconds 'cr200(x) series datalogger 'example program showing measurement of a single cs215 sensor every 30 sec 'declare the variables we are going to use public cs215meas(2...

  • Page 21

    Cs215 temperature and relative humidity probe 7.4.3.3 cr3000 program for measuring one sensor every 10 seconds 'cr3000 'example program showing measurement of a single cs215 sensor every 10 seconds 'declare variables and units we are going to use. Public trhdata(2) alias trhdata(1)=airtc alias trhda...

  • Page 22

    Cs215 temperature and relative humidity probe 7.4.3.5 cr10(x) program measuring a sensor every minute the following example is written for the cr10(x). Programs for the cr500, cr510, and cr23x would be similar. The program below shows a simple example reading a sensor which has been set up with addr...

  • Page 23

    Cs215 temperature and relative humidity probe 7.5 changing the sdi-12 address using loggernet and a datalogger up to ten cs215s or other sdi-12 sensors can be connected to a single datalogger control port. Each sdi-12 device must have a unique sdi-12 address between 0 and 9. (the cs215 also supports...

  • Page 24

    Cs215 temperature and relative humidity probe will change its address and the datalogger will exit the sdi-12 transparent mode and respond with “fail”. 7. Verify the new sdi-12 address. Press the key. At the “cr200(x)>” prompt enter the command sdi12>?! And press the key. The cs215 will respond with...

  • Page 25

    Cs215 temperature and relative humidity probe enter the command sdi12 and press the key. The cr800 will respond with “enter control port 1 or 3.” enter control port and press enter. Type in ?! And the cs215 will respond with sdi-12 address. If no characters are typed within 12 seconds, then the mode...

  • Page 26

    Cs215 temperature and relative humidity probe 4. Press the key until the datalogger responds with the “cr1000>” prompt. 5. To query the cs215 for its current sdi-12 address, press the key. At the “cr1000>” prompt, make sure you are in caps lock mode and enter the command sdi12 and press the key. The...

  • Page 27

    Cs215 temperature and relative humidity probe device menu, located in the lower left-hand side of the window, select the station. 3. Click on the open terminal button. If communications between the datalogger and pc are successful, the red bar located in the upper left-hand side of the window will t...

  • Page 28

    Cs215 temperature and relative humidity probe 7.5.5 table-based “edlog” dataloggers 1. Connect a single cs215 to the datalogger control port p as described in section 7.3, wiring, and download a datalogger program that contains the sdi-12 recorder (instruction 105) instruction with valid entries for...

  • Page 29

    Cs215 temperature and relative humidity probe figure 7-5. Screen capture of sdi-12 transparent mode on edlog table-based datalogger using control port 8 and changing sdi-12 address from 0 to 1 8. Maintenance and calibration the cs215 probe requires minimal maintenance. • check monthly to make sure t...

  • Page 30

    Cs215 temperature and relative humidity probe 8.1 sensor element replacement to replace the element: 1. Disconnect the sensor from the 12 v power supply. 2. Remove the filter by unscrewing it in a counter-clockwise direction when looking towards the tip of the sensor. The filter cap unscrews from th...

  • Page 31

    Cs215 temperature and relative humidity probe 8. Either hold the element by the black top of the package (the other end to the gold plated pins) or use a pair of fine nosed pliers or tweezers to grip the sensor by the pins. Carefully offer up the pins to the socket in the end of probe. 9. Confirm th...

  • Page 32

    Cs215 temperature and relative humidity probe sensor connector sticking out of the end of the tube gold pins sensing element sensing part of the element. Printing on this side. Center line of the sensor body and socket thread for the filter gold colored side of the tip figure 8-1. Correct fit of sen...

  • Page 33: 9.  Troubleshooting

    Cs215 temperature and relative humidity probe sensing part of element not on the center line center line of the sensor body figure 8-2. Incorrect fit of sensor element (side view) 9. Troubleshooting symptom: -9999 or nan for temperature, 0 or unchanging value for rh 1. Verify the green wire is conne...

  • Page 34: 10.  References

    Cs215 temperature and relative humidity probe 28 symptom: incorrect temperature or relative humidity 1. If 12v power is switched “on” for the measurement, verify the program is allowing a “warm-up” time of at least 100 ms. 2. Check to see if the filter tip has been contaminated. Replace the filter t...

  • Page 35: Appendix A.  Environmental

    Appendix a. Environmental performance this appendix details tests and limitations of the sensor when exposed to extremes of the environment. A.1 tests to defined standards the sensor element has been tested by the manufacturer and found to comply with various environmental test standards as shown in...

  • Page 36: A.4  Measurement Below 0

    Appendix a. Environmental performance extended range as shown in the figure below (although the electronics of the cs215 probe are not specified to operate beyond +70°c). When used outside the range of normal conditions or when subject to prolonged periods of condensation or freezing the sensor cali...

  • Page 38

    Campbell scientific companies campbell scientific, inc. (csi) 815 west 1800 north logan, utah 84321 united states www.Campbellsci.Com • info@campbellsci.Com campbell scientific africa pty. Ltd. (csaf) po box 2450 somerset west 7129 south africa www.Csafrica.Co.Za • cleroux@csafrica.Co.Za campbell sc...