Swahusada is the official distributor of Dwyer in Indonesia. All items on this website are new, and have a direct factory warranty. If you need another type, you can chat with us directly. We serve pre-order and indent purchases for all Dwyer units.
DWYER SERIES CDTR CARBON DIOXIDE/RH/TEMPERATURE TRANSMITTERS CDTR-2D4B4
The Series CDTR Carbon Dioxide and Temperature Transmitters accurately monitor the CO2 concentration and temperature in indoor environments to help achieve energy savings. In order to achieve a higher level of accuracy, the Series CDTR includes barometric pressure adjustment. The CO2 universal output allows users to select the transmitter output to be 4-20 mA, 0-5 VDC, or 0-10 VDC to work with virtually any building management controller. For applications that require visual indication, the wall mount configurations of the Series CDTR can be ordered with an integral LCD display. To prevent tampering, the action of the buttons can be locked out using an internal dip switch selection.
The Series CDTR CO2 transmitters are available with a -S option that provides the necessary attributes and parameters to be compliant with DSA requirements for monitoring CO2 levels in schools. There is a front facing LED that illuminates when the CO2 level exceeds 1100 PPM.
Features
• Minimize inventory and save time by combining CO2, temperature and humidity measurements into one transmitter
• Requires minimal maintenance with Automatic Baseline Correction (ABC) to account for sensor drift
• Reduce operation costs using a low energy, reliable, and repeatable CO2 sensor
• Simplify installation with backplate electrical connection
Spesification :
Sensor NDIR, 15 year life expectancy.
Range CO2: 0 to 2000 or 0 to 5000 PPM (depending on model); Temperature: 32 to 122°F (0 to 50°C).
Accuracy** CO2: ±40 PPM + 3% of reading (2000 PPM CO2); ± 50 PPM + 5% of reading (5000 PPM CO2); Temperature: ±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 on page 4 (depending on model). **The specified CO2 accuracy is only guaranteed after three weeks of continuous operation in environments which are intermittently occupied.
Product Application :
• Demand control ventilation in schools, office buildings, hospitals, and other indoor environments
• LEED® certification
