CD2OSN07R
Details
Details
Outside CO2 Transmitter, 0-2000 ppm, 4-20mA/0-5V/0-10V, Unheated Weatherproof Enclosure, 10k Type 3 Thermistor Temp, Relay
Needs 24 VAC/DC power. Operates only from 32 to 122 deg F; the heated model covers colder sites.
Key Features
- Output signal: 4-20mA (3-wire), 0-5V, or 0-10V, field selectable
- Relay: Form A (NO), 2A @ 140 VAC/30 VDC
- Response time: about 30 minutes for a 90% step change inside the outside enclosure
Product Specifications
| Manufacturer | Greystone |
|---|---|
| Model | CD2OSN07R |
| Gas detected | Carbon dioxide (CO2) |
| Sensor type | Dual wavelength non-dispersive infrared (NDIR) |
| Sensor accuracy | +/-(30 ppm + 3% of measured value) |
| Measurement range | 0 to 2000 ppm, adjustable 1000 to 10,000 ppm |
| Altitude adjustment | 0 to 8,370 ft (0 to 2550 m) in 164 ft (50 m) increments |
| Temperature dependency | +/-1.4 ppm per deg F (+/-2.5 ppm per deg C) |
| Response time | 20 seconds (T63); about 30 minutes for a 90% step change inside the outside enclosure |
| Warm-up time | 1 minute |
| Sensor life span | Over 15 years |
| Transmitter accuracy | +/-0.25% of span (including linearity, hysteresis, and repeatability) |
| Power supply | 24 VDC +/-20% or 24 VAC +/-10% (non-isolated half-wave rectified) |
| Protection circuitry | Reverse voltage and transient protected |
| Input voltage effect | Negligible over specified operating range |
| Output signal | 4-20mA (3-wire), 0-5V, or 0-10V, field selectable |
| Current consumption | Unheated, 4-20mA output: 75 mA max @ 24 VDC, 150 mA max @ 24 VAC; 0-5V/0-10V output: 50 mA max @ 24 VDC, 100 mA max @ 24 VAC |
| Operating conditions | 32 to 122 deg F (0 to 50 deg C), 5 to 90% RH non-condensing |
| Output drive @ 24 VDC | Current: 550 ohm max; voltage: 10k ohm min |
| LCD | Concealed, used for setting parameters; ppm (CO2), 0 to 10,000 ppm; 1.4 x 0.6 in. (35 x 15 mm), 2-line x 8 character |
| Temp sensor | 10k Type 3 NTC thermistor, +/-0.36 deg F (+/-0.2 deg C); 2-wire resistive output |
| Relay | Form A (NO), 2A @ 140 VAC/30 VDC, 2-wire output; selectable CO2 high or CO2 low |
| Enclosure | Weatherproof, unheated; vented, IP65 (NEMA 4X); 4.3 x 7.125 x 3.5 in. (110 x 180 x 89 mm) |
| Mounting | Outside wall, north-facing and under the eaves, out of direct sun and wind; four mounting holes |
| Wiring connections | Screw terminal block (14 to 22 AWG); optional temp sensor on a 2- or 3-wire pigtail; 0.85 in. conduit knockouts |
| Use limits | Not for explosive or hazardous locations or as a safety or emergency-stop device |
| Approvals | CE |
| Country of origin | Canada |