CDDTF2R02
Details
Details
Duct CO2 Transmitter, 0-20,000 ppm, 4-20mA/0-5V/0-10V, 100 ohm Plat RTD Temp, Relay, Cable Gland Fitting
Needs 20 to 28 VAC/DC power.
Key Features
- Output signal: 4-20mA active (sourcing) or 0-5V/0-10V, field selectable
- Relay: Form A (NO), 2A @ 140 VAC, 2A @ 30 VDC
Product Specifications
| Manufacturer | Greystone |
|---|---|
| Model | CDDTF2R02 |
| Gas detected | Carbon dioxide (CO2) |
| Measurement type | Dual channel non-dispersive infrared (NDIR), diffusion sampling |
| Measurement range | 0 to 20,000 ppm, programmable span |
| Standard accuracy | +/-75 ppm (400 to 1000 ppm); 10% of reading above 1000 ppm |
| Temperature dependence | 0.11% FS per deg F (0.2% FS per deg C) |
| Stability | Under 5% FS over life of sensor (10 years typical) |
| Pressure dependence | 0.13% of reading per mm Hg |
| Altitude correction | Programmable 0 to 5000 ft via keypad |
| Response time | Under 2 minutes for 90% step change, typical |
| Warm-up time | Under 2 minutes |
| Power supply | 20 to 28 VAC/DC (non-isolated half-wave rectified) |
| Current consumption | 4-20mA output: 120 mA max @ 24 VDC, 212 mA max @ 24 VAC |
| Output signal | 4-20mA active (sourcing) or 0-5V/0-10V, field selectable |
| Output drive capability | Current: 550 ohm max; voltage: 5k ohm min |
| Output resolution | 10 bit PWM |
| Input voltage effect | Negligible over specified operating range |
| Protection circuitry | Reverse voltage and overvoltage protected |
| LCD | Backlit (enable or disable via keypad); 1 ppm CO2 resolution; 1.4 x 0.6 in. (35 x 15 mm) |
| Temp sensor | 100 ohm platinum RTD, IEC 751, 385 alpha, thin film; 2-wire resistive output |
| Relay | Form A (NO), 2A @ 140 VAC, 2A @ 30 VDC; trip point and hysteresis programmable via keypad |
| Wiring connections | Screw terminal block (14 to 22 AWG) |
| Enclosure | IP65 (NEMA 4X) polycarbonate, hinged and gasketed cover; thread adapter (1/2 in. NPT to M16) and cable gland fitting included |
| Dimensions | Enclosure 4.585 x 4.43 x 2.11 in. (116.5 x 112.5 x 53.7 mm); probe 6 in. (152 mm) long, 0.88 in. (22.5 mm) diameter, 0.5 in. NPT |
| Mounting | Outside of a return air duct with the sampling tube inserted; straight duct at least 5 ft from corners |
| Approvals | CE, RoHS |
| Country of origin | Canada |