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Dwyer Instruments
Dwyer CDT Carbon Dioxide & Temperature Transmitter
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المعاملات الرئيسية
Measuring range
CO2 0–2000 or 0–5000 ppm (model dependent); Temperature 32 to 122 °F (0 to 50 °C)
Accuracy
CO2 ±40 ppm + 3% of reading (2000 ppm range class per DS)
Output
Universal 4–20 mA / 0–5 VDC / 0–10 VDC (jumper selectable); optional passive thermistor/RTD temperature
Supply
16–35 VDC or 19–28 VAC
Protection
Duct mount NEMA 4X (IP66) housing; wall mount IP20
Ambient temperature
32 to 122 °F (0 to 50 °C)
| المعامل | القيمة |
|---|---|
| Measuring range | CO2 0–2000 or 0–5000 ppm (model dependent); Temperature 32 to 122 °F (0 to 50 °C) |
| Accuracy | CO2 ±40 ppm + 3% of reading (2000 ppm range class per DS) |
| Output | Universal 4–20 mA / 0–5 VDC / 0–10 VDC (jumper selectable); optional passive thermistor/RTD temperature |
| Supply | 16–35 VDC or 19–28 VAC |
| Protection | Duct mount NEMA 4X (IP66) housing; wall mount IP20 |
| Ambient temperature | 32 to 122 °F (0 to 50 °C) |
| Display | Optional integral LCD on wall-mount configurations |
| Approvals | CE |
| Mounting | Wall or duct mount housings |
| Sensor type | NDIR CO2 sensor (15-year life expectancy) + temperature |
| Notes | Series CDT CO2 & temperature transmitter for HVAC/demand-control ventilation. Specs from Dwyer CDT datasheet (assets.dwyeromega.com OEM CDN; branded dwyer-inst.com). |
| Response Time | 2 minutes for 99% CO2 step change |