CDTA-2N000

CDTA-2N000 is a CDTA series communicating carbon dioxide detector which combines 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. For environments occupied 24 hours per day it is recommended to periodically expose the CO2 sensor to outside ambient air. Application includes demand control ventilation in schools, office buildings, hospitals, and other indoor environments, LEED® certification.

• 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
• 2000PPM Max CO2 level, north American housing style, No display
• 2 min for 90% step change response time (CO2)
• Power requirements range from 10 to 42VDC / 10 to 30VAC
• 2-wire RS-485, Modbus® RTU or BACnet MS/TP communication protocol output
• BTL compliance
• Temperature limits range from 0 to 50°C, 32 to 122°F