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Dwyer Instruments
Dwyer CDTR Carbon Dioxide / RH / Temperature Transmitter
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المعاملات الرئيسية
Measuring range
CO2 0–2000 or 0–5000 ppm; RH 0–100%; Temperature 32 to 122 °F (0 to 50 °C)
Accuracy
CO2 ±40 ppm + 3% of reading; RH ±2%
Output
Universal CO2 and RH outputs 4–20 mA / 0–5 / 0–10 VDC; optional passive thermistor or RTD temperature
Supply
16–35 VDC or 19–28 VAC
Protection
Duct NEMA 4X (IP66) housing; wall IP20
Ambient temperature
32 to 122 °F (0 to 50 °C); humidity limits 10–95% RH non-condensing
| المعامل | القيمة |
|---|---|
| Measuring range | CO2 0–2000 or 0–5000 ppm; RH 0–100%; Temperature 32 to 122 °F (0 to 50 °C) |
| Accuracy | CO2 ±40 ppm + 3% of reading; RH ±2% |
| Output | Universal CO2 and RH outputs 4–20 mA / 0–5 / 0–10 VDC; optional passive thermistor or RTD temperature |
| Supply | 16–35 VDC or 19–28 VAC |
| Protection | Duct NEMA 4X (IP66) housing; wall IP20 |
| Ambient temperature | 32 to 122 °F (0 to 50 °C); humidity limits 10–95% RH non-condensing |
| Display | Optional LCD; configurable CO2 / RH / temperature combinations |
| Approvals | CE |
| Mounting | Wall (North American / European housings) or duct |
| Sensor type | NDIR CO2 + RH + temperature (barometric pressure compensation) |
| Notes | Series CDTR combines CO2, RH, and temperature in one transmitter. Specs from Dwyer CDTR datasheet. |
| Duct Air Velocity | 0–4000 FPM (20.32 m/s) |