LI-8150 Multiplexer

LI-8150 MultiplexerFor the LI-8100 Automated Soil CO 2 Flux SystemAutomated Solution for Spatial and Temporal Sampling

LI-8150 MultiplexerLI-8150 MultiplexerWeatherproof CaseSystemDisplaySolenoidBanksChamberPortsLI-8100 AnalyzerControl UnitLI-8100 ConnectionsLI-8150 MultiplexerConnectionsThe Multiplexed System■ Connect up to16 chambers■ 30 m diametercoverage■ Auxiliary sensorconnections■ Easy connection to the LI-8100Analyzer Control Unit (ACU)■ NDIR CO 2 /H 2 O analyzer in theLI-8100 ACU■ Single gas analyzer preventsmeasurement bias

Automated Solution for Spatial and Temporal SamplingF CO2 (µmol m -2 s -1 )1.61.41.21.00.80.60.4F CO2Soil Temperature151050Soil Temperature (°C)0.20.048 50 52 54 56 58 60-5Day of YearTime series data for Soil CO 2 flux (F CO2 ) obtained with a 16-chamber system at Lincoln, Nebraska in February 2006.Also shown are the soil temperature data for each chamber.

8100-101 Long-TermChamberMotor-DrivenStrutNovel PressureVent DesignAdjustableLegsDouble GasketSealWeatherproofConnectorsThe Long-Term Chamber■ 20 cm diameter■ Chamber pressure tracksambient pressure■ Can be deployed on unevensurfaces and slopes■ Double gasket seal■ Mechanical movementminimizes soil perturbations■ –20 to 45°C operatingtemperature range

www.licor.com/8100The Multiplexed LI-8100 SystemThe LI-8150 MultiplexerDesigned exclusively for use with the LI-8100Automated Soil CO 2 Flux System, the LI-8150Multiplexer allows up to 16 chambers to beconnected.■ Choose from 8 or 16 port configurations■ Durable, weatherproof connectors and case■ High flow, low power, long-life solenoidvalves■ Filter assemblies clean incoming air■ LED indicator panel providesMultiplexer diagnostic information■ System software for leak testing withoutthe need for additional hardwareLI-8150 Multiplexer (left), four long-term chambers (background), LI-8100 AnalyzerControl Unit (right), communication through wireless Palm ® PDA.System AdvantagesAs your research needs grow, so can the LI-8100system. Its modular design allows for additionalchambers to be added at any time. The picturesat right demonstrate the spatial flexibility of thesystem. The four chamber system is arranged in asquare formation. With the addition of four morechambers, spatial coverage is doubled.Placement of chambers is flexible to within 15meters of the LI-8150 Multiplexer. An 8-portLI-8150 can easily be upgraded to 16 ports with afactory upgrade, or a field upgrade kit.Four chamber systemRegardless of the number of chambers you use, theLI-8100 ACU has plenty of data storage capacity.Data can be stored on the instrument’s internal flashmemory or on a removable compact flash card.Auxiliary sensors, such as soil temperature andmoisture probes, can be connected at each chamber.Eight chamber systemThe LI-8150 Multiplexer can be used for CO 2 profiling studies. Contact LI-COR for more details.

OrderingLI-8150 Multiplexer. Choose from two versions:LI-8150-8 (eight ports) and LI-8150-16 (sixteen ports).LI-8150-8 Eight Port Multiplexer. Connect up to eight8100-101 Long-Term Chambers or gas sampling lines.Includes Spares Kit and Cable/Hose Assembly forconnection to LI-8100 Analyzer Control Unit. LI-8100,Chambers, and Power Supply not included. (Note:LI-8150 powers the LI-8100 Analyzer Control Unitwhen connected.)LI-8150-16 Sixteen Port Multiplexer. Connect up tosixteen 8100-101 Long-Term Chambers or gassampling lines. Includes Spares Kit and Cable/HoseAssembly for connection to LI-8100 Analyzer ControlUnit. LI-8100, Chambers, and Power Supply notincluded. (Note: LI-8150 powers the LI-8100 AnalyzerControl Unit when connected.)Accessories8150-706 DC Power Cable. 3 m cable, bare leadtermination. For user-supplied DC power source.8150-770 AC Power Supply. Includes connection toLI-8150.8150-661 Chamber Interface Box. Required for eachmultiplexed 8100-101 Long-Term Chamber whereauxiliary sensors are to be connected. Allows forconnection of up to three auxiliary sensors.8150-705 Cable/Hose Extension Assembly. 15 metersin length. Use only one extension per chamber.8100-202 Soil Moisture Probe. (ECH 2 O) Volumetricwater content, 0 to saturation.8100-203 Soil Temperature Thermistor. For use withmultiplexed 8100-101 Long-Term Chambers.8150-916 Eight to Sixteen Port Upgrade. Upgrade aneight port Multiplexer to sixteen ports. Includes factoryinstallation.LI-8150 Specifications *LI-8150 MultiplexerDimensions: 40.6 cm L x 57.2 cm W x 21.1 cm H(16” x 22.5” x 8.3”)Weatherproof Rating: Tested to IEC IP55 standardWeight8 port version: 9.4 kg (20.7 lb)16 port version: 11.2 kg (24.8 lb)Operating RangeTemperature: –20 to 45 °CHumidity: 0 to 95% RH, non-condensingCoverage AreaMax radius from LI-8150 to chambers: 15.0 m (49.2 ft)Max diameter of measurement circle: 30.0 m (98.4 ft)PlumbingFlow rate to/from chambers: 2-5 lpm(user adjustable)Flow rate between LI-8100 and LI-8150: 1.7 lpmPump in the LI-8100 sub-samples air stream inthe LI-8150LI-8150 Pump Type: Rotary-vane (non-pulsating flow)DisplayFour LED Indicators: Power, Check Error Log, ManualChamber Activation Indicator, Active Chamber ErrorFive 7-segment LED Displays: Active Chamber,Active Valve, three voltage channel indicatorsPower Requirements:10.5 – 14.5 VDC (120 VAC and 240 VAC with optionalpower supply)Power supplied through the LI-8150; LI-8150 powersthe LI-8100 when connectedSee example below for total system power requirementsLI-8100 + LI-8150+ n Chambersn Chambers24816TypicalOperationAmps @12.5VDCWatts2.02.12.12.325262729At Startup (IRGAswarming, chambersactuated)Amps @12.5VDCWatts2.02.22.32.525282931*Specifications subject to change without notice.Long-Term ChamberSystem Volume: 4092.5 cm 3Soil Area Exposed: 317.8 cm 2 (49.3 in. 2 )Dimensions: 43.2 cm L x 38.1 cm W x 20.3 cm H(17" x 15" x 8")Air temperature thermistorOperating Range: –20 to 45 °CAccuracy (when connected to LI-8150 Multiplexer):± 0.5 °C over 0 to 50 °C± 1.0 °C over –20 to 0 °CAccuracy (when connected to LI-8100 ACU):± 0.5 °C over 0 to 70 °CCable length: 2 m (6.56 ft.)Weight: 5.9 kg (13 lb.)Chamber Sensor InterfaceDimensions: 10.2 cm L x 3.8 cm W x 6.4 cm H(4" x 1.5" x 2.5")Inputs:3 general input channels (0-5 VDC)1 dedicated channel for soil moisture probe0-5V, powered every 1 to 60 minutes, user-selectablePower supply (external or from LI-8150):Constant or switched: 0-5 VDCUnregulated: 12 VDC (12-13.5 VDC typically)Connections: Terminal strip with screw postsAccessoriesSoil temperature thermistor6 foot cable. Accuracy: ± 1.0 °C from –20 to 50 °CCable/hose extension assemblyLength: 15 mConnections:Electrical cables:Turck weatherproof connectorsAir hoses: Quick-connect fittings8150-916-1 Eight to Sixteen Port Field Upgrade Kit.Field installation kit includes control panel assembly,solenoid/valve bank assemblies, Multiplexer modulePCA boards, filter assemblies, necessary hardware,and upgrade instruction document.4421 Superior Street • P.O. Box 4425 • Lincoln, Nebraska 68504 USANorth America: 800-447-3576 • International: 402-467-3576 • FAX: 402-467-2819envsales@licor.com • envsupport@licor.com • www.licor.comIn Germany, Norway, and the United Kingdom - LI-COR GmbH: +49 (0) 6172 17 17 771envsales-gmbh@licor.com • envsupport-gmbh@licor.comLI-COR is a registered trademark of LI-COR, Inc. All trademarks belong to their respective owners.These third parties do not endorse, are not affiliated with, and do not sponsor the LI-8150 or other LI-CORproducts. Copyright 2006, LI-COR, Inc. Printed in the U.S.A. The LI-8100 is covered by U.S. Patents Pendingand foreign equivalents.The LI-COR board of directors would like to take thisopportunity to return thanks to God for His mercifulprovidence in allowing LI-COR to develop and commercializeproducts, through the collective effort ofdedicated employees, that enable the examination ofthe wonders of His works.“Trust in the LORD with all your heart and do not leanon your own understanding. In all your ways acknowledgeHim, and He will make your paths straight.”—Proverbs 3:5,605/06 980-08518