Dwyer - Wall Mount CO2 - CDT Series
CDT Series Datasheet Series CDT Carbon Dioxide/Temperature Transmitters Description: The Series CDT Carbon Dioxide and Temperature Transmitters offer precise monitoring of CO2 concentration and temperature in indoor environments, contributing to energy conservation efforts. These transmitters integrate CO2 and temperature measurements into a single device, simplifying inventory management and installation. Featuring Automatic Baseline Correction (ABC), they require minimal maintenance to account for sensor drift, ensuring reliable performance. With options for CO2 universal output, users can select from 4-20 mA, 0-5 VDC, or 0-10 VDC outputs compatible with various building management controllers. For enhanced functionality, wall mount configurations of the Series CDT are available with an integral LCD display for visual indication. Additionally, to prevent tampering, the transmitter includes lockout functionality for button actions. The Series CDT CO2 transmitters are available with a -S option designed to comply with DSA requirements for monitoring CO2 levels in schools. They feature a front-facing LED that illuminates when CO2 levels exceed 1100 PPM. Features and Benefits: Combines CO2 and temperature measurements, reducing inventory and installation time. Automatic Baseline Correction (ABC) minimizes maintenance for sensor drift. Low energy, reliable, and repeatable CO2 sensor helps reduce operation costs. Backplate electrical connection simplifies installation. Applications: Demand control ventilation in schools, office buildings, hospitals, and indoor environments. LEED® certification. Specifications: Sensor: NDIR, 15-year life expectancy. CO2 Range: 0 to 2000 or 0 to 5000 PPM (depending on model). Temperature Range: 32 to 122°F (0 to 50°C). CO2 Accuracy: ±40 PPM + 3% of reading (2000 PPM CO2); ±50 PPM + 5% of reading (5000 PPM CO2). Temperature Accuracy: ±1°C @ 25°C. Response Time: 2 min for 90% step change. Temperature Limits: 32 to 122°F (0 to 50°C). Humidity Limits: 0 to 85% (non-condensing). Power Requirements: 16-35 VDC or 19-28 VAC. Power Consumption: Average: 2 W; Peak: 3.75 W. Output: Current: 4-20 mA (max. 500 Ω); Voltage: 0-5 VDC or 0-10 VDC (min. 500 Ω); Relay: SPST NO rated 2A @ 30 VDC; RTD or thermistor per r-t curves (depending on model). Compliance: CE. Part Numbers: CDT-2N40 Wall Mount CO2 Sensor CO2 0-2000ppm Universal Output no Temp CDT-2N44 Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal outputs for CO2 and Temp CDT-2N4A Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type III CDT-2N4B Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type II CDT-2N4D Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 100 Ohm RTD CDT-2N4E Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 1 kOhm RTD CDT-2N4F Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 20 kOhm CDT-2N40-RLY Wall Mount CO2 Sensor CO2 0-2000ppm Universal Output no Temp Relay CDT-2N44-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal outputs for CO2 and Temp Relay CDT-2N4A-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type III Relay CDT-2N4B-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type II Relay CDT-2N4D-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 100 Ohm RTD Relay CDT-2N4E-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 1 kOhm RTD Relay CDT-2N4F-RLY Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 20 kOhm Relay CDT-2N40-LCD Wall Mount CO2 Sensor CO2 0-2000ppm Universal Output no Temp LCD CDT-2N44-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal outputs for CO2 and Temp LCD CDT-2N4A-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type III LCD CDT-2N4B-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type II LCD CDT-2N4D-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 100 Ohm RTD LCD CDT-2N4E-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 1 kOhm RTD LCD CDT-2N4F-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 20 kOhm LCD CDT-2N40-RLY-LCD Wall Mount CO2 Sensor CO2 0-2000ppm Universal Output no Temp Relay LCD CDT-2N44-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal outputs for CO2 and Temp Relay LCD CDT-2N4A-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type III Relay LCD CDT-2N4B-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 10 kOhm Type II Relay LCD CDT-2N4D-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 100 Ohm RTD Relay LCD CDT-2N4E-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 1 kOhm RTD Relay LCD CDT-2N4F-RLY-LCD Wall Mount CO2 / Temp Sensor CO2 0-2000ppm Universal Output Temp - 20 kOhm Relay LCD Please refer to the datasheet to check models capabilities. Need help to order a specific Part-Number? Contact Us!
Brand: Dwyer
Category: Hardware > Tools > Measuring Tools & Sensors > Air Quality Meters > CO2 Meters