Series CDTA Communicating Carbon Dioxide Detector

Measures CO2, Humidity, Temperature, Temperature Set Point, and Override

The Series CDTA Communicating Carbon Dioxide Detectors combine the function of three room sensors into a single, compact housing. Parameters include carbon dioxide, humidity, temperature, and temperature set point with override. A 4-wire connection and daisy chaining together reduces installation cost. The RS-485 MAC address is set up using on board DIP switches. Additional DIP switches are used to select Modbus® RTU or BACnet MS/TP and to limit access to the set up menu. The barometric pressure can be programmed to correct for altitude. The humidity sensor is field replaceable without the need for additional calibration. Optional integral and remote displays are available to display temperature, humidity, or temperature set point instead of CO2.
*For environments occupied 24 hours per day it is recommended to periodically expose the CO2 sensor to outside ambient air.

Product Applications

Demand control ventilation in schools, office buildings, hospitals, and other indoor environments
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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

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Model	Description	Usually Ships*	Price	Order
CDTA-2N000 Ships: 1-2 Weeks Price: $361.00	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus® and BACnet Output, North American Wall Mount Housing, 2000 PPM Range	1-2 Weeks*	$361.00	Order
CDTA-2N000-LCD Ships: 1-2 Weeks Price: $420.50	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus® and BACnet Output, North American Wall Mount Housing, 2000 PPM Range, LCD Display	1-2 Weeks*	$420.50	Order
CDTA-5N000 Ships: 1-2 Weeks Price: $361.00	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus® and BACnet Output, North American Wall Mount Housing, 5000 PPM Range	1-2 Weeks*	$361.00	Order
CDTA-5N000-LCD Ships: 1-2 Weeks Price: $420.50	Carbon Dioxide / Temperature / Humidity Communicating Stat with Set Point and Override, Modbus® and BACnet Output, North American Wall Mount Housing, 5000 PPM Range, LCD Display	1-2 Weeks*	$420.50	Order

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Specifications

Sensor (CO2):: NDIR, 15 year life expectancy; Humidity: Capacitive polymer; Temperature: Solid state band gap.
Range:: CO2 : 0 to 2000 or 5000 PPM CO 2 (depending on model); Humidity: 0 to 100% RH; Temperature: 32 to 122°F (0 to 50°C).
Accuracy*:: CO2 : ±40 PPM ±3% of reading 2000 PPM; ±50 PPM + 5% of reading 5000 PPM; RH: ±2% (10 to 90% RH); Temperature: ±1°C @ 25°C.
Response Time (CO2):: 2 min for 90% step change.
Temperature Limits:: 32 to 122°F (0 to 50°C).
Humidity Limits:: 0 to 85% RH (non-condensing).
Power Requirements:: 10-42 VDC or 10-30 VAC.
Output:: 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol.
Weight:: 4.4 oz (125 g).
Compliance:: BTL, CE.
: *The specified CO2 accuracy is only guaranteed after three weeks of continuous operation in environments which are intermittently occupied.

Features

Minimize inventory and save time by combining CO 2 , RH and temperature measurements into one transmitter
Reduce installation time with field selectable Modbus and BACnet communications
Reduces the number of devices mounted in the space with integral humidity and temperature sensors
Requires minimal maintenance with Automatic Baseline Correction (ABC) to account for sensor drift
Prevent tampering with physical hardware lockout
Easily installation with optional remote display tool and simple installation with backplate electrical connection

Accessories

Model Number	Description	Usually Ships*	Price	Order
A-449	Remote display with mini USB display.	Next Day	$65.00	Order
A-CDT-KIT	Accessory kit including terminal block and power supply.	1-2 Weeks	$51.00	Order
GCK-200CO-2000CO2	Gas Calibration Kit (GROUND SHIPMENTS ONLY)	Call for Details	$688.00	Order

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Model Chart

SERIES	CDTA							Carbon Dioxide Detector
RANGE		2 5						2000 ppm 5000 ppm
MOUNTING CONFIGURATION			N					North American Wall Mount
CARBON DIOXIDE OUTPUT				0				NONE
TEMPERATURE OUTPUT					0			NONE
RH OUTPUT						0		NONE
OPTIONS							COC FC LCD	Certificate of Calibration Factory Calibration Certificate LCD Display

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Series CDTA Catalog Page

Product Data Sheet

CDTA

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