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Dwyer CDTR-2E404 | Carbon Dioxide Transmitter
The Dwyer CDTR-2E404 is a carbon dioxide transmitter with accuracy CO₂: ±40 ppm + 3% of reading RH: ±2%, approvals CE and IP20 protection. Dwyer lists dual wavelength, one beam NDIR CO2 sensor., interchangeable temperature and humidity sensors. and hardware lockout on a physical level. among its features.
- Accuracy: CO₂: ±40 ppm + 3% of reading RH: ±2%
- Approvals: CE
- Enclosure Rating: IP20
- Humidity: Limits: 10 to 95% RH (non-condensing)
- Maximum Operating Temperature: 32 to 122°F (0 to 50°C)
- Mounting: Wall mount (European housing)
- Non-Linearity: 16 ppm
- Output: Current: 4-20 mA (max 500 Ω) Voltage: 0-5 VDC or 0-10 VDC (min 500 Ω)
- Specifications
- Features
- Downloads
| Accuracy | CO₂: ±40 ppm + 3% of reading RH: ±2% |
| Approvals | CE |
| Enclosure Rating | IP20 |
| Humidity | Limits: 10 to 95% RH (non-condensing) |
| Manufacturer | Dwyer Instruments |
| Maximum Operating Temperature | 32 to 122°F (0 to 50°C) |
| Mounting | Wall mount (European housing) |
| Non-Linearity | 16 ppm |
| Output | Current: 4-20 mA (max 500 Ω) Voltage: 0-5 VDC or 0-10 VDC (min 500 Ω) |
| POWER CONSUMPTION | Average: 2 W Peak: 3.75 W |
| Power | 16-35 VDC or 19-28 VAC |
| PRESSURE | Dependence: 0.13% of reading per mm Hg |
| Range | CO₂: 0-2000 PPM Relative Humidity: 0-100% RH Temperature: 32 to 122°F (0 to 50°C) |
| Range | Duct Air Velocity: 0-4000 FPM (20.32 m/s) |
| Response Time | 2 minutes for 99% step change |
| Sensor Type | Single-beam, dual-wavelength NDIR |
| Temperature | Dependence: ±8 ppm/°C at 1100 ppm |
| Temperature Output | None |
| Display | None |
| Type | Carbon Dioxide, Relative Humidity and Temperature Transmitter |
| Weight | 5.6 oz (158.8 g) |
| Part Number | CDTR-2E404 |
- The self-heating effects of wall mount combination devices are eliminated by the Digital Intelligence Temperature Compensation Algorithm (DITCATM).
- Dual wavelength, one beam NDIR CO2 sensor.
- Interchangeable temperature and humidity sensors.
- Hardware lockout on a physical level.
- For wall mount and duct mount units without an LCD relay output option, there is a service display tool available.
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