CDT2000 Duct

CO2 transmitters with temperature output for duct

CDT2000 Duct combines CO2 and temperature measurements in one device installed in air ventilation duct. Illuminated display ensures easy readability also from a distance. The CDT2000 Duct has a screwless lid and an easily adjustable mounting flange that make the installation of the device easy.

The CDT2000 Duct series transmitters calibrate themselves automatically using ABCTM logic. The ABCTM logic requires that the space in which the transmitter is used needs to to be unoccupied for four hours per day so that the indoor CO2 concentration drops to the outside level. CDT2000-DC Duct is a dual channel model with a measuring channel and a reference channel that makes a continuous comparison and the necessary adjustment accordingly. CDT2000-DC Duct is also suitable for buildings that are continuously  occupied.

CDT2000 Duct series devices include:
• Separate output for each measurement parameter (CO2 and T)
• Mounting flange

CDT2000 Duct series device options offer:
• Clear backlit display
• Modbus RTU interface

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Applications

CDT2000 Duct is commonly used to monitor and control:

•  CO2 levels of incoming and return air in ventilation system
• CDT2000-DC Duct series devices can also be used in applications where there is a constant source of carbon dioxide present (for example hospitals and greenhouses)

Specifications

Performance

Measurement range:
CO2: 400–2,000 ppm
Temperature: 32−122 °F
Accuracy:
CO2: ±40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater)
Temperature: <0.9 °F

Technical Specifications

Media Compatibility:
Dry air or non-aggressive gases
Measuring units:
ppm and °F
Measuring element:
CO2: Non Dispersive Infrared (NDIR)
Temperature: NTC10K
Environment:
Operating Temperature: 32−122 °F (0−50 °C)
Storage Temperature: -4−158 °F (-20−70 °C)
Humidity: 0 to 95 % rH, non condensing

Physical

Dimensions:
Case: 4.69” x 3.94” x 1.76” (119 x 100 x 44.7 mm)
Probe: L=7.4” (188 mm), d= 0.47” (12 mm)
Weight:
5.3 oz (150 g)
Materials:
Case: ABS
Cover: PC
Probe: ABS
Protection standard:
IP54 / NEMA3
Electrical connections:
4 spring loaded terminals
(24 V, GND, CO2, T)
12–24 AWG (0.2–1.5 mm2)

Electrical

Supply voltage: 24 VAC or VDC ±10 %
Current consumption: max 230 mA (at 24 V) + 10 mA for each voltage output
Output signals for every media:
0/2…5/10 VDC, Load R minimum 1 kΩ

Conformance

Meets requirements for CE marking:
EMC Directive: 2014/30/EU
RoHS Directive: 2011/65/EU
WEEE Directive: 2012/19/EU

 

Model summary

  CDT2000 Duct  
Description Model# Part#
Carbon dioxide transmitter for duct CDT2000 Duct 10014
– with display CDT2000 Duct-D 10015
– with Modbus configuration and display CDT-MOD-2000 Duct-D 10200
– with dual channel sensor CDT2000-DC Duct 10204
– with dual channel sensor and display CDT2000-DC Duct-D 10205
– with Modbus configuration, dual channel sensor and display CDT-MOD-2000-DC Duct-D 10206