CDD4B101T2RS
Details
Details
Room CO2 Transmitter, 0-20,000 ppm, 4-20mA/0-5V/0-10V, 100 ohm Plat RTD Temp, Relay, Override, Viewable LCD
Needs 20 to 28 VAC/DC power.
Key Features
- Output signal: 4-20mA active (sourcing), 0-5V, or 0-10V, field selectable
- Relay: Form A (NO), 2A @ 140 VAC/30 VDC
- Override switch: Front panel pushbutton, NO SPST
Product Specifications
| Manufacturer | Greystone |
|---|---|
| Model | CDD4B101T2RS |
| Gas detected | Carbon dioxide (CO2) |
| Sensor type | Dual wavelength non-dispersive infrared (NDIR) |
| Sensor accuracy | +/-75 ppm or 10% of reading, whichever is greater |
| Measurement range | 0 to 20,000 ppm standard, programmable span 2000 to 20,000 ppm |
| Pressure dependency | Under 0.13% of reading per mm Hg |
| Temperature dependency | 0.11% FS per deg F (0.2% FS per deg C) |
| Stability | Under 5% FS over life of sensor (15 years typical) |
| Altitude correction | Programmable 0 to 5000 ft via keypad |
| Response time | Under 2 minutes for 90% step change, typical |
| Sensor coverage area | 1,000 sq ft (100 sq m) typical |
| Power supply | 20 to 28 VDC/VAC (non-isolated half-wave rectified) |
| Protection circuitry | Reverse voltage and overvoltage protected |
| Output signal | 4-20mA active (sourcing), 0-5V, or 0-10V, field selectable |
| Current consumption | 100 mA max @ 24 VDC, 185 mA max @ 24 VAC with all options |
| Output drive capability | Current: 550 ohm max; voltage: 5k ohm min |
| Ambient operating range | 32 to 122 deg F (0 to 50 deg C), 0 to 95% RH non-condensing |
| LCD | Viewable; 1 ppm CO2 resolution; 1.4 x 0.6 in. (35 x 15 mm), 2-line x 8 character; backlight enable or disable via keypad |
| Temp sensor | 100 ohm platinum RTD, IEC 751, 385 alpha, thin film; 2-wire resistive output |
| Relay | Form A (NO), 2A @ 140 VAC/30 VDC; trip point programmable 500 to 15,000 ppm, hysteresis 25 to 500 ppm |
| Override switch | Front panel pushbutton, NO SPST, 50 mA @ 12 VDC |
| Wiring connections | Screw terminal block (14 to 22 AWG) |
| Enclosure | White ABS, IP30 (NEMA 1); 3.3 x 4.7 x 1.15 in. (84 x 119 x 29 mm) |
| Mounting | Single-gang electrical box or directly on a wall |
| Calibration guarantee | 5 years for CO2-based ventilation control where the ACLP self-calibration can operate (Greystone terms) |
| Country of origin | Canada |