Related Manuals for Campbell CS225
Summary of Contents for Campbell CS225
- Page 1 CS225 Temperature String 2/16 C o p y r i g h t © 2 0 1 6 C a m p b e l l S c i e n t i f i c , I n 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.
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Page 7: Table Of Contents
2. Precautions ..............1 3. Initial Inspection ............2 4. Overview ..............2 5. Specifications ............. 2 SGB3 3-Line Surge Protector .............. 2 CS225 Temperature String ..............3 6. Installation ..............3 Siting ....................3 Mounting ....................4 Wiring ....................4 7. - Page 8 1 and prompting for SDI-12 addresses ..................11 Tables 6-1. CS225 Connection to SGB3 ..............4 6-2. SGB3 Connection to Campbell Scientific Dataloggers ....... 5 7-1. SDI-12 Commands for the CS225 ............7 7-2. SDI-12 Addresses and Positions ............8 7-3.
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Page 9: Introduction
There are no user-serviceable parts and any attempt to disassemble the device will void the warranty. • The CS225 ships with a SGB3 surge protector, a 2-ft cable, 2 pan Phillips screws and 2 grommets. Do not make tight bends near the temperature sensor(s). -
Page 10: Initial Inspection
Check this information against the shipping documents to ensure the expected product and cable length are received. • The CS225 ships with a SGB3 surge protector, a 2-ft cable, two pan Phillips screws, two grommets, and a ResourceDVD. Overview The CS225 Temperature String uses digital sensor technology allowing for a simple three-wire integration. -
Page 11: Cs225 Temperature String
Installation Siting The CS225 is meant to be installed within the measurement medium. To make the most representative measurement, reliable contact needs to be made between the temperature string and medium. The temperature string should be... -
Page 12: Mounting
CS225 Temperature String The CS225 consists of the lead cable and the sensor array. The lead cable length is the length between the datalogger and sensor array. The sensor array length is the length of cable that incorporates all temperature sensors in their specified configuration. -
Page 13: Operation
(see below for limits on the total cable length). The SDI-12 address of the CS225 can be set two ways: • By sending the required commands to the sensors via an SDI-12 recorder/datalogger that allows talk through to the sensor •... -
Page 14: Power Conservation
7.1.2 Power Conservation The CS225 draws less than 1 mA of current per sensor between polling sessions from its 12 V supply. In many applications, this is minimal compared to overall system power use, so the sensor can be continually powered to avoid the warm-up period. -
Page 15: Sdi-12 Addressing
The CS225 comes pre-programed with addresses from the factory, but the user can also change it. This may be necessary if two CS225 strings need to be placed in the same SDI-12 channel to avoid duplicate addresses on the same... -
Page 16: Sdi-12 Addresses And Positions
CS225 Temperature String The starting address will be 1 and this will coincide with the first temperature sensor, which is located at the end of the sensor array. It is recommended to start the readdressing process with the largest temperature sensor address to avoid duplicate addresses. -
Page 17: Slow Sequence Program Instructions
Use of the slow sequence program instructions should be considered if the CS225 measurement will exceed the program scan interval of the additional instruments included in the station. For example, if a CS225 consists of 17 or more temperature sensors, the time required to poll all sensors and receive data back can be greater than 5 s based on the 300 ms execution time for the aR0! command. -
Page 18: Cr1000 And Cr800 Series Dataloggers
CS225 Temperature String using the a! command. This can be done using a computer running LoggerNet to issue and valid SDI-12 command through the datalogger to the CS225 as described in the following sections. 7.3.1 CR1000 and CR800 series Dataloggers Connect the CS225 to the datalogger using Control Port C1 or C3, as described in Section 6.3, Wiring... -
Page 19: Maintenance And Calibration
SDI-12 transparent mode. Maintenance and Calibration The CS225 string requires no maintenance or calibration. Troubleshooting Symptom: –9999 or NAN for temperature Verify the green wire is connected to the control port specified by the SDI-12 measurement instruction. - Page 20 CS225 Temperature String temporarily disconnect the red wire to a 12 V terminal (non-switched) for test purposes. Symptom: Sensor will not respond to command. Expected address not used or has been changed. In this case, you may wish to confirm all addresses in use with the aI! command in a trial and error fashion.
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Page 21: Appendix
Appendix A. Example Programs A.1 Slow Sequence Example The following example polls a single CS225 on control port 1 of a CR1000 in a slow sequence. The CS225 includes 20 sensors with SDI-12 addresses 1 through 20. Each sensor is polled with the aR0! command every 60 s, and stored to a data table on the same interval. -
Page 22: Metadata Example
The following Metadata program reads a CS225 string that has 15 temperature sensors. It calculates the metadata points based on the number of sensors. CRBasic Example A-2. MetaData Example 'CR1000 Series Datalogger 'The following Sample program reads a CS225 string that has 15 temperature Sensors 'Declare Public Variables Public PTemp, batt_volt... -
Page 23: Measuring 15 Sensors Every 60 Seconds
EndProg A.3 Measuring 15 Sensors Every 60 Seconds In the following example, a single CS225 is being measured on control port 1 of a CR1000. The CS225 includes 15 sensors with SDI-12 addresses 1 through 15. Each sensor is polled with the aR0! command every 60 s and stored to a data table on the same interval. -
Page 24: Measuring 15 Sensors Every 5 Minutes
EndProg A.4 Measuring 15 Sensors Every 5 Minutes In this example, a CR1000 measures a CS225 connected to control port 1. The CS225 includes 15 sensors with SDI-12 addresses 1 through 15. Each temperature sensor is polled both on power up and daily with the aR1! command to determine metadata, which is stored in a daily data table. - Page 25 CRBasic Example A-4. Measuring 15 Sensors Every 5 Minutes 'CR1000 Series Datalogger 'The following Sample program reads a CS225 string that has 15 temperature Sensors. 'Individual temperatures, user minimum and maximum are recorded every 5 minutes, and Meta 'Data is collected daily.
- Page 26 Appendix A. Example Programs EndSelect Return("") EndFunction 'ConvertNumToSDI12address() 'EndSub 'Main Program BeginProg Scan (60,Sec,0,0) PanelTemp (PTemp,250) Battery (batt_volt) 'Read the Meta Data from the sensor daily 'Also read if a non-valid serial number is present (Startup values should be zero). 'A valid serial number will be greater than 1 (CS225Meta(1,1) <...
- Page 28 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...
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