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CDD4B3 Carbon Dioxide Sensor, Dual Beam, Outside, Analog Op, Heated

CDD4B3  Carbon Dioxide Sensor, Dual Beam, Outside, Analog Op, heated
£56700

(£680.40 incl VAT)
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Model:CDD4B3

Description

The CDD4 Series CO2 transmitter uses a highly accurate and reliable Non-dispersive Infrared (NDIR) with state-of-the-art digital linearization and temperature compensated circuitry in an outside mount to detect CO2 levels and provides a linear analog signal output of 4-20 mA, 0-5 or 0-10 Vdc signals. The CDD4 is available with a range 0-20,000 ppm (Dual-channel). Parameters are set up via the concealed LCD display. Various precision thermistors or RTD’s are also available as an optional temperature output.

Features

  • Menu driven set-up
  • 20,000 (Dual-channel) PPM CO2 range
  • Patented self-calibration algorithm
  • Guaranteed 5 year calibration interval
  • Optional Temperature Sensor Outputs
  • Easily field calibrated

Specifications

  • Range....................................0 - 2000 ppm standard,
    programmable span from 2000 to 20,000 ppm
  • Accuracy ..............................±75 PPM or 10% of reading (whichever is greater)
  • Sensor.......................................Dual Channel Non-Dispersive Infrared (NDIR), diffusion sampling
  • Sensor Coverage Area ....100 m² (1000 ft²) typical
  • Temp. Dependence .........0.2% FS per °C
  • Stability................................< 5 % FS over life of sensor
  • Sensor Life Span ...............15 years typical
  • Press. Dependence ..........0.13% of reading per mm Hg
  • Altitude Correction ..........Programmable from 0-5000 ft via keypad
  • Response Time ..................<2 minutes for 90% step change typical
  • Warm-up Time...................<2 minutes
  • Power Supply.....................20-28 Vac/dc (non-isolated half-wave rectified)
  • Output Signals...................4-20 mA active (sourcing), 0-5 Vdc or 0-10 Vdc (field selectable)
  • Consumption.....................Heated: 1.0 A max @ 24 Vdc 1.1 A max @ 24 Vac
    Unheated: 100 mA max @ 24 Vdc 185 mA max @ 24 Vac
  • Output Drive Capability.....Current: 550 ohms max
    Voltage: 10 Kohm min
  • Output Resolution ...........10 bit PWM
  • Protection Circuitry..........Reverse voltage & overvoltage protected
  • Operation Conditions .....Heated: -40˚- 50°C (-40˚-122°F)
    Unheated: 0˚- 50°C (32˚-122°F)
    0-95% RH non-condensing
  • Wiring Connections.........Screw terminal block (14 to 22 AWG)
  • External Dimensions .......110mm W x 180mm H x 89mm D (4.3” x 7.125” x 3.5”)
  • Enclosure Ratings.............IP65 (NEMA 4X)

 

Optional Temperature Signal:

  • Sensing Element...............Various RTDs or thermistors as a 2-wire resistance output

Optional Relay Output:

  • Contact Ratings.................Form A contact (N.O.), 2 Amps @ 140 Vac, 2 Amps @ 30 Vdc
  • Relay Trip Point..................Programmable 500-15,000 ppm
  • Relay Hysteresis ................Programmable 25-500 ppm

Concealed LCD Display (Used for setting parameters):

  • Resolution ...........................1 ppm CO2
  • Size.........................................1.4” w x 0.6” h (35 mm x 15 mm)
    Alpha-numeric 2 line x 8 character
  • Backlight..............................Enable or disable via keypad

Description

The CDD4 Series CO2 transmitter uses a highly accurate and reliable Non-dispersive Infrared (NDIR) with state-of-the-art digital linearization and temperature compensated circuitry in an outside mount to detect CO2 levels and provides a linear analog signal output of 4-20 mA, 0-5 or 0-10 Vdc signals. The CDD4 is available with a range 0-20,000 ppm (Dual-channel). Parameters are set up via the concealed LCD display. Various precision thermistors or RTD’s are also available as an optional temperature output.

Features

Specifications

 

Optional Temperature Signal:

Optional Relay Output:

Concealed LCD Display (Used for setting parameters):

Technical

Outside Carbon Dioxide ( CO2 ) sensor datasheet

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