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    CARBON DIOXIDE ANALYZER, Model : 423 SERIES, Brand : Nova

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    Origin
    Canada
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    Specification

    The Nova 423 Series Carbon Dioxide monitor/ controller has a sensitive solid-state infrared CO2 detector which continuously displays detected CO2 on a front panel digital meter. A built in sample pump draws in a sample through a filter and flow meter then on to the solid state infrared detector for analysis. A 4-20mA linear output signal is available for operation of a recorder or input to a computer. The Model 423 CO2 Monitor can be time shared between a number of sample points using a Nova automatic sequencer. Calibration need only be done once per year. Applications include HVAC and IAQ systems, CO2 monitoring and control of greenhouses, wineries, breweries, food processing plants or any area requiring a stand-alone CO2 monitor or controller.

    Specifications
    Method of Detection
    Solids State NDIR infrared detector with no free air path
    Ranges Available
    0-2000, 0-3000, 0-5000, 0-10000, 0-20000 PPM CO2
    Resolution 10 PPM
    Accuracy & Repeatability ± 2% of full scale
    Drift Less than 100 PPM per month non-accumulative
    Response Time ( T-90) 20-30 seconds
    Ambient Temperature Range
    0 to 49 º C - 32 to 122 º F
    Linearity 1% of full scale
    Size & Weight 10 " H x 8 " W x 5 " D ( 25 x 20 x 13 cm) , 6 lbs. ( 2.7 kg)
    Power 115 VAC, 60 Hz - 220 VAC, 50 Hz
    Output Options 4-20 mA, 0-1 VAC, RS232
    Alarms Non latching control relay with set point
    Analyzer Type Agricultural CO2 Analyzers

    Applications
    For continuous carbon dioxide ( CO2) monitoring and control of greenhouses, mushroom farms, controlled atmospheres for produce storage, and others.

    Features
    Bright digital readout
    Solid state infrared CO2 detector - no moving parts
    Fast warm up - approx. 1 minute
    Built in sampling pump
    Unaffected by moisture or humidity
    Dust-tight fiberglass enclosure
    Can be used with Nova auto sequencer for multi-point sampling
    Modular layout that is easy to maintain

    Options
    Hi/ Low gas and low flow alarms available
    Cold weather package for low temp use to -5° F ( -20° C)
    Relay contacts available for On/ Off CO2 control
    4-20mA or 0-1VDC outputs

    Calibration
    Air ( scrubbed of CO2) for zero
    Analyzed CO2 cylinder for span