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Product Description
Dwyer CDT Series Carbon Dioxide and Temperature Transmitters measure the absorption of CO2 and temperature indoor areas to ensure energy savings. For greater sensor precision, a single beam dual-wavelength nondispersive infrared (NDIR) system is mostly used to automatically correct the measurement towards light source aging effects both in occupied * and unoccupied building structures. Similar to Automatic Baseline Correction methods, the single-beam dual-wavelength sensor technology offers the highest degree of precision and can accidentally change the calibration based on CO2 levels and barometric pressure.
Features of Dwyer CDT-5D40 Carbon Dioxide Transmitter :
- Single beam dual-wavelength NDIR sensor eliminates draft due to light source aging
- Optional integral display and relay output
- Integral passive temperature outputs reduce the number of devices mounted in the space
- Service display tool available for models without an integral LED
Additional Information
| Weight | 1 kg |
|---|---|
| Manufacturer | Dwyer |
| Model No. | CDT-5D40 |
| Measuring Parameters | CO2 and temperature |
| Range | 0 to 2000 or 0 to 5000 ppm |
| Accuracy | ±40 ppm ±3% of reading |
| Pressure Dependence | 0.13% of reading per mm of Hg. |
| Range_1 | 32 to 122°F (0 to 50°C) |
| Accuracy_1 | ±1°C @ 25°C |
| Temperature Dependence | ±8 ppm/°C at 1100 ppm |
| Current Output | 4 to 20 mA (max. 500 Ω |
| Voltage Output | 0 to 5 VDC or 0 to 10 VDC (min. 500 Ω) |
| Relay Output | SPST NO rated 2 A @ 30 VDC |
| Operating Temperature | 32 to 122°F (0 to 50°C). |
| Operating Humidity | 10 to 95% RH (non-condensing) |
| Enclosure Rating | Duct mount: NEMA 4X (IP66) for housing only; Wall mount: IP20 |
| Weight | 4.4 oz (125 g). |
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