Campbell-scientific EC155 CO2 and H2O Closed-Path Gas Analyzer and EC1 Uživatelský manuál

INSTRUCTION MANUAL EC155 CO2 and H2O Closed-Path Gas Analyzer Revision: 6/14 Copyright © 2010- 2014 Campbell Scientific, I

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EC155 CO2 and H2O Closed-Path Gas Analyzer 1. Introduction The EC155 is an in-situ, closed-path, mid-infrared absorption gas analyzer that measures

EC155 CO2 and H2O Closed-Path Gas Analyzer • CAUTION: o Grounding the EC100 measurement electronics is critical. Proper grounding to earth (chassis

EC155 CO2 and H2O Closed-Path Gas Analyzer 5. Specifications 5.1 Measurements Features • To compute carbon dioxide, water vapor, and sensible heat

EC155 CO2 and H2O Closed-Path Gas Analyzer Factory calibrated range CO2: 0 to 1000 µmol·mol-1 H2O: 0 mmol·mol-1 to 37oC dewpoint Analyzer temp: -30

EC155 CO2 and H2O Closed-Path Gas Analyzer 1 noise rms, assumes: o 25°C o 85 kPa o 19 mmol/mol H2O concentration o 326 mmol/mol CO2 concentration

EC155 CO2 and H2O Closed-Path Gas Analyzer 5.3 Physical Description Sample cell volume: 5.9 cm3 (0.36 in3) Sample cell length: 12.0 cm (4.72 in) Sa

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 5-1. Dimensions of EC155 analyzer head with optional heated intake FIGURE 5-2. Dimensions of EC1

EC155 CO2 and H2O Closed-Path Gas Analyzer 5.4 Power Requirements Voltage supply: 10 to 16 Vdc Power at 25oC including CSAT3A: 4.8 W Power at 25oC

EC155 CO2 and H2O Closed-Path Gas Analyzer f. Level the assembly by slightly loosening the bolt in the CM250 leveling mount. Adjust the assembly unt

EC155 CO2 and H2O Closed-Path Gas Analyzer The CSAT3A sonic anemometer is an updated version of the CSAT3, designed to work with the EC100 electronic

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 6-3. Exploded view of mounting the EC100 enclosure h. Remove the EC100 enclosure desiccant from t

EC155 CO2 and H2O Closed-Path Gas Analyzer The pressure drop in the optional heated intake assembly is approximately 2.5 kPa at 7 LPM flow with no fil

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 6-4. End views of the analyzer showing the sample intake (optional heated intake not sho

EC155 CO2 and H2O Closed-Path Gas Analyzer module. During zero and span the zero or span gas can be pushed into this fitting to flow backward through

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 6-6. Bottom of EC100 enclosure Do not connect or disconnect the EC155 gas analyzer head or CSAT3 s

EC155 CO2 and H2O Closed-Path Gas Analyzer Unlike previous models of the CSAT3 3D sonic anemometer, the CSAT3A sonic head and the EC155 gas analyzer h

EC155 CO2 and H2O Closed-Path Gas Analyzer f. Wire power and ground (i.e., power reference) cable CABLEPCBL-L (pn 21969-L) to the EC100. Feed the ca

EC155 CO2 and H2O Closed-Path Gas Analyzer 7.2 Details This section gives an explanation for each setting. 7.2.1 SDM Address This parameter must be

EC155 CO2 and H2O Closed-Path Gas Analyzer 7.2.5 RS-485 Baud Rate If the unprompted output mode is set to RS-485, this parameter determines the baud

Limited Warranty “Products manufactured by CSI are warranted by CSI to be free from defects in materials and workmanship under normal use and service

EC155 CO2 and H2O Closed-Path Gas Analyzer The final option is to select None for the Pressure Sensor setting. The EC100 will use a fixed (see below)

EC155 CO2 and H2O Closed-Path Gas Analyzer Besides changing settings, ECMon is also a useful tool for other common tasks such as: • Monitoring real-t

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 7-2. The Setup window in ECMon FIGURE 7-3. The ECMon Status window 22

EC155 CO2 and H2O Closed-Path Gas Analyzer 7.4 Device Configuration Utility The Device Configuration Utility software may also be used to change sett

EC155 CO2 and H2O Closed-Path Gas Analyzer dataloggers, the SDM protocol uses SDM-dedicated ports SDM-C1, SDM-C2, and SDM-C3. Each SDM device on the

EC155 CO2 and H2O Closed-Path Gas Analyzer TABLE 8-1. USB and RS-485 Output Elements Data Element Description Units/comments 1 Ux m/s 2 Uy m/s 3 U

EC155 CO2 and H2O Closed-Path Gas Analyzer The following block of code is an example implementation of Campbell Scientific’s signature algorithm in th

EC155 CO2 and H2O Closed-Path Gas Analyzer by heating in an oven. See the manual ENC10/12, ENC12/14, ENC14/16, ENC16/18, available at www.campbellsci

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 9-1. The underside of the optional heated intake 9.3 Cleaning Analyzer Windows The windows of the

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 9-2. The EC155 analyzer with the top shell open FIGURE 9-3. By loosening the thumbscrews above

Assistance Products may not be returned without prior authorization. The following contact information is for US and international customers residing

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 9-4. The EC155 analyzer and sample cell with shell top open FIGURE 9-5. Analyzer removed fro

EC155 CO2 and H2O Closed-Path Gas Analyzer 9.4 Zero and Span As is the case with optical instrumentation, the EC155 may drift slightly with exposure

EC155 CO2 and H2O Closed-Path Gas Analyzer 1. Connect the zero-and-span gas to the Sample inlet, and disconnect the pump, leaving the Pump connection

EC155 CO2 and H2O Closed-Path Gas Analyzer i. Examine the measurements that were written down for span CO2, span H2O, and zero air. Compute the drif

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 9-6. ECMon Zero/Span window l. Enter the known concentration of CO2 (in ppm) in the Span Concentr

EC155 CO2 and H2O Closed-Path Gas Analyzer b. Unscrew the large metal plug found at the base of the analyzer next to the analyzer cable; it should on

EC155 CO2 and H2O Closed-Path Gas Analyzer FIGURE 9-8. Replacing the detector housing desiccant/scrubber bottle 9.6 Factory Recalibration When the

EC155 CO2 and H2O Closed-Path Gas Analyzer 10. Datalogger Programming with CRBasic CRBasic supports two instructions to communicate with the EC100 vi

EC155 CO2 and H2O Closed-Path Gas Analyzer TABLE 10-1. Output Modes for EC100 Instruction Output Mode Data Field Description Units 0, 1, 2, 1 Ux m

EC155 CO2 and H2O Closed-Path Gas Analyzer TABLE 10-3. Bits in the Gas Diagnostic Flag bit hex value decimal Name Function 0 0x1 1 Bad

Precautions DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND TRIPODS, TOWERS, AND ANY ATTACHMENTS TO

EC155 CO2 and H2O Closed-Path Gas Analyzer 10.2 EC100Configure() Instruction This instruction is another way, besides ECMon and Device Configuration,

EC155 CO2 and H2O Closed-Path Gas Analyzer TABLE 10-4. ConfigCmd Values for Setting and Retrieving Settings ConfigCmd Variable Setting Description (s

EC155 CO2 and H2O Closed-Path Gas Analyzer 10.2.1 ConfigCmd 11 Zero-and-Span Control To perform zeroing of CO2 and H2O, ConfigCmd 11 is set to 1. Aft

EC155 CO2 and H2O Closed-Path Gas Analyzer 10.3 Example CRBasic Program 'CR3000 Series Datalogger 'CR3000 Series Datalogger Public sonic_

EC155 CO2 and H2O Closed-Path Gas Analyzer 11. Theory of Operation The EC155 is a non-dispersive mid-infrared absorption analyzer. Infrared radiatio

Appendix A. Filter Bandwidth and Time Delay The EC100 measures CO2 and H2O from the EC155 gas analyzer head (as well as wind velocity and sonic temp

Appendix A. Filter Bandwidth and Time Delay the non-EC100 data by two datalogger scans to match the EC100 data. For the best synchronicity, choose a

Appendix A. Filter Bandwidth and Time Delay FIGURE A-2. Frequency response comparison of the EC100 10-Hz bandwidth and a 50-msec moving average TA

Appendix A. Filter Bandwidth and Time Delay A-4

Appendix B. Useful Equations The following table lists all the variables and constants used in the equations below: Table of Variables and Constants

Appendix B. Useful Equations ( )+−+=vvddXXTRPM1000115.273ρ (B-5) Dew Point from Molar Mixing Ratio tmpdtmpddTTT__502.17 97.240−= (

Appendix C. EC155 Sample Cell and Intake Maintenance The following steps can be undertaken when the sample cell and intake tube becomes dirty, or as

Appendix C. EC155 Sample Cell and Intake Maintenance 3. Plug the hole in the inlet with your finger. The pump will pull a vacuum on its internal fi

Appendix D. Material Safety Data Sheets (MSDS) D.1 Magnesium Perchlorate MSDS D-1

Appendix D. Material Safety Data Sheets (MSDS) D.2 Decarbite MSDS D-2

Appendix D. Material Safety Data Sheets (MSDS) D-3

Appendix D. Material Safety Data Sheets (MSDS) D-4

Appendix E. EC155 Packing Information E-1

Appendix E. EC155 Packing Information E-2

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 spec

Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbe

Table of Contents 7.4 Device Configuration Utility ..... 23 8. EC100 Outputs ...

Table of Contents 6-2. EC100 enclosure mounting bracket mounted on a vertical mast (left) and a tripod leg (right) .........