Series CDW2 Carbon Dioxide Transmitters

Monitors CO2, Temperature and Humidity, Optional LCD Display

The Series CDW2 Wall Mount Carbon Dioxide Transmitters monitor ambient carbon dioxide conditions for variable air volume (VAV) on demand ventilation systems. Universal current/voltage temperature and humidity outputs are also available to reduce the number of instruments mounted on the wall. The Non-Dispersive Infrared (NDIR) sensor continuously updates the calibration through a proprietary logic feature which limits the amount of error due to drift. A duct mount and a heated outside air enclosure are available enabling the CDW2 to be used in different environments.

We are in the process of phasing this Series out, please see Series CDT for additional ranges.

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model	Description	Usually Ships*	Price	Order
CDW2-2W4A4 Ships: Consult Factory Price: $440.00	Carbon dioxide temperature & humidity transmitter, standard wall housing, 10kΩ Type III thermistor temperature output.	Consult Factory*	$440.00	Order
CDW2-2W4B0 Ships: 3-4 Weeks Price: $340.00	Carbon dioxide temperature transmitter, standard wall housing, 10kΩ Type II thermistor temperature output.	3-4 Weeks*	$340.00	Order
CDW2-2W4B4 Ships: 3-4 Weeks Price: $440.00	Carbon dioxide temperature & humidity transmitter, standard wall housing, 10kΩ Type II thermistor temperature output.	3-4 Weeks*	$440.00	Order

Specifications

Range:: CO2: 0 to 2000 PPM;
Relative Humidity: 0 to 99%;
Active Temperature: 32 to 122°F (0 to 50°C).
Accuracy:: CO2: ±30 PPM or 3% of reading, whichever is greater;
RH: ± 2.5% (20 to 80% RH) / 3.5% (<20% and >80%);
Active Temperature: ± 1.5°F @ 72°F (0.8°C @ 22°C);
Thermistor: ± 1.9°F @ 60 to 95°F (1°C @ 15 to 35°C).
Temperature Dependence:: ±0.11% FS per °F (0.2% per °C).
Pressure Dependence:: 0.135% of reading per mm Hg.
Response Time:: Signal updates every 5 seconds.
Warm Up Time:: < 2 min (operational), 10 min (max. accuracy).
Temperature Limits:: Ambient: 32 to 122°F (0 to 50°C);
Storage: -40 to 158°F (-40 to 70°C).
Power Requirements:: 18 to 30 VAC RMS 50/60 Hz.
Sensor:: CO2: Non-dispersive infrared sensor (NDIR) with ABC logic;
RH: Capacitive polymer sensor;
Temperature: 10 kO NTC thermistor.
Weight:: 7.2 oz (204 g).
Agency Approvals:: CE, RoHS.

Accessories

	Model Number	Description	Usually Ships*	Price	Order
	1508	Duct Mount Enclosure	3-4 Weeks	$105.00	Order
	1552	Outside Air Measurement Enclosure	3-4 Weeks	$263.00	Order

Product Literature

Manuals

Catalog Pages

Series CDW2 Catalog Page

Approvals

Drawings

Photo Downloads

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