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 from 0-1500 PPM up to
        10,000 PPM without re-calibration
  • 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, 1A2, 1A3, 1A6
    CDD1A7 & CDD1A8
    CDD1A4 & CDD1A5
    Range
    0-2000 ppm standard, programmable from 1500 up to 10,000 ppm
    0-2000 ppm
    Standard Accuracy
    ±50 PPM or +3% of reading @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
    Temp Range w/ OSA
    Not Applicable
    -40-70ºC (-40-158ºF)
    Standard Accuracy
    ±50 PPM or +3% of reading @22 C(72 F) when compared to certified calibration gas
    Temperature Dependance
    0.2% FS per ºC
    Stability
    < 2 % FS over life of sensor (15 years typical)
    Output Signal 4-20 mA active (sourcing), 0-5Vdc and 0-10Vdc, jumper selectable (Note correct part number) (1A7)4-20 mA active (sourcing) or (1A8) 0-5Vdc or 0-10Vdc 4-20 mA active (sourcing), 0-5Vdc(1A5) or 0-10Vdc(1A4)
    Output Drive Capability Current - 550 ohm max
    Voltage - 10 Kohm min     		Current - 550 ohm max
    Voltage - 2 Kohm min     		Current - 550 ohm max
    Voltage - 10 Kohm min
    Pressure Dependance
    0.13% of reading per mm Hg
    Alitiude Correction
    Programmable from 0-5000 ft in 500 ft increments
    Not Applicable
    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) 125mA@24V maximum(70mA typical) 65mA@24V maximum (25mA 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 mm x 13 mm) alpha-numeric 2 line x 8 characters LCD for displaying PPM level 0-2000, 0-100 %RH and 0-35ºC (32-95ºF) temperature, 1.3”w x 0.55”h (33 x 14 mm) LCD for displaying PPM level 0-2000, 1 ppm resolution, 1.3”w x 0.55”h (33 x 14 mm)
    Optional Relay Output One Form C contact (N.O. and N.C.), status LED, 5 amps @ 250 Vac, 5 amps @ 30Vdc, p.f. = 1
    Not Available
    Programming and Selection Via internal push-buttons and jumper Via internal push-buttons
    Temperature Sensor Not Applicable 10K ohm curve matched thermistor Optional Thermistor or RTD
    Temperature Output Range Not Applicable 0-35ºC (32-95ºF) or 0-50ºC (32-122ºF) Programmable Not Applicable
    Temperature Output Accuracy Not Applicable ±0.2ºC (±0.4ºF) Not Applicable
    Humidity Sensor Not Applicable Thermoset Polymer Based Capacitive Not Applicable
    Humidity Output Range Not Applicable 0-100% Not Applicable
    Humidity Output Accuracy Not Applicable ±2%RH Not Applicable
    Humidity Response Time Not Applicable 15 Seconds Typical Not Applicable
    Humidity Output Hysteresis Not Applicable ±2%RH Not Applicable
    Humidity Stability Not Applicable ±1%RH typical @ 50% RH in 5 years Not Applicable
    Wiring Connections Screw terminal block (14 to 22 AWG)
    External Dimensions Corporate Space - 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")     		Executive Space - 71mm W x 119mm H x 32mm D (2.8" x 4.7" x 1.25") Executive Space - 71mm W x 119mm H x 32mm D (2.8" x 4.7" x 1.25")
    Outside Encl. - 110mm W x 180mm H x 90mm D (4.25" x 7" x 3.5")


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