Environmental, industrial, and commercial Carbon Dioxide (CO2) gas detector. Available in both a space and duct mount version.


Decorative Enclosure for CO2


To sense and transmit to any compatible electronic analog control, DDC/PLC controller or automation system for the control of ventilation equipment. Designed to meet ventilation requirements specified in ASHRAE Standard 62-1999.


  • Setup/calibration fully menu driven
        (requires LCD option).
  • Monitors CO2 over range 0-2000 PPM
        (factory default).
  • Field adjustable range (Model Specific)
  • NDIR single beam with patented self
        calibration algorithm.
  • Guaranteed 5 year calibration interval.
  • Optional on board relay with field adjustable trip
        point.
  • Optional LCD for displaying PPM level and
       menu options.
  • Powered by either AC or DC source with no
       change to circuit required.
  • Choice of two field adjustable analog output
        signals, linearized over full range.
  • Easy to calibrate in the field



    •  CO2 DETECTOR - Product # CDD

    Product
    CDD1A1, 2, 3 & 6
    Range
    (CDD1A1 & CDD1A2)
    0-2000 ppm standard, programmable from 1500 up to 10,000 ppm
    Standard Accuracy
    ±50 PPM or +3% of reading @22ºC(72ºF) when compared to certified calibration gas
    Range
    (CDD1A3 & CDD1A6)
    0-2000 ppm standard, programmable from 0-1000 to 0-2000 ppm in 100 ppm increments
    Standard Accuracy
    ±75 PPM @ 1000 ppm @ 22ºC(72ºF) when compared to certified calibration gas
    Sensing Element
    Non-Dispersive Infrared Detector (NDIR)
    Operation Conditions
    0-50ºC (32-122ºF), 0-95% RH non-condensing.
    Temperature Dependence
    0.2% FS per ºC
    Stability
    < 2 % FS over life of sensor (15 years typical)
    Output Signal
    4-20 mA active (sourcing) or 0-5Vdc or 0-10Vdc, Model Specific
    Output Drive Capability
    Current - 550 ohm max
    Voltage - 10 Kohm min
    Pressure Dependance
    0.13% of reading per mm Hg
    Altitude Correction
    Programmable from 0-500 ft in 500 ft increments
    Response Time
    2 minutes for 90% step change
    Warm-up Time
    2 minutes
    Power Supply
    20-30 Vac/dc (non-isolated half-wave rectified)
    Consumption
    140mA@24V maximum(40mA typical)
    Input Voltage Effect
    Negligible over specified operating range
    Protection Circuitry
    Reverse voltage protected and output limited
    LCD Display (Optional)
    LCD for displaying PPM level (required for field programming), 1 ppm resolution, 1.1”w x 0.5”h (28 x 13 mm) alpha-numeric 2 line x 8 character
    Relay Output (Optional)
    One form C contact (N.O. and N.C.), status LED, 5 Amp @ 250 Vac, 5 amp @ 30 Vdc, p.f. = 1
    Programming and Selection
    Via internal push-buttons and jumper
    Wiring Connections
    Screw terminal block (14 to 22 AWG)
    External Dimensions
    Corporate - 91mm W x 127mm H x 43mm D (3.6" x 5" x 1.7")
    Space/Duct ABS - 124mm W x 183mm H x 43mm D (4.9" x 7.22" x 1.7")


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