Honeywell C7632 Carbon Dioxide (CO₂) Sensors
The Carbon Dioxide (CO₂) Sensors offer a fixed 0-2000ppm and fixed 0-10Vdc output. No adjustments are necessary. Like the C7232 sensors, these are for use in determining ventilation necessity with HVAC controllers.
The sensor measures the CO₂ concentration in the ventilated space or duct. The sensors are used in ventilation and air conditioning systems to control the amount of fresh outdoor air supplied to maintain acceptable levels of CO₂ in the space.
• Non-Dispersion-Infrared (NDIR) technology used to measure carbon dioxide gas
• Gold-plated sensor provides long-term calibration stability
• Fixed 0-2000ppm, fixed 0-10Vdc output
• Used for CO₂ based ventilation control (Demand Control Ventilation (DCV))
• Automatic Background Calibration (ABC) algorithm based on long term evaluation reduces required typical zero-drift check maintenance
Select a link under the "item" tab below to order.
| Cat # | Includes | Mounting | Display | inch | mm |
| C7632A1004 | Honeywell Logo | Wall mount | No | 4 1/8 in high x 3 7/8 in. wide x 1 1/16 in. deep | 104mm high x 99 mm high x 27 mm deep |
| C7632B1002 | Honeywell Logo | Duct mount | No | 5 5/8 in. high x 3 5/16 in. wide x 1 13/16 in. deep x plus 8 in. long sensing tube | 142 mm high x 84 mm wide x 87 mm deep x plus 203 mm sensing tube |
| Models | C7632 Sensor and Controller. A stand-alone carbon dioxide (CO₂) sensor with one 0-10 Vdc analog output | |
| C7632A | Wall mount model | |
| C7632B | Duct mount model | |
| Ambient Ratings | ||
| Operating Temperature | +32°F to +122°F (0°C to +50°C) | |
| Temperature Storage | -4°F to +158°F (-20°C to +70°C) | |
| Automatic Background Calibration (ABC) default | On. | |
| Electrical Ratings | ||
| Power Supply | 24 Vac ±20%, 50/60 Hz (Class 2) | |
| Maximum Power Consumption | Average: 1W Peak: 2W |
|
| Peak Current (at 20 ms) | 300 mA | |
| Linear Analog Output | 0-10 Vdc | |
| Mounting | ||
| C7632A | Vertical surface with standard single-gang junction box | |
| C7632B | Sheet metal duct with a sampling tube | |
| CO₂ Pressure Dependence | 1.6% change in reading per 1 kPa deviation from 100 kPa | |
| Output | Analog: 0-10 Vdc, 0-2000 ppm (fixed) | |
| Sensor Performance Ratings | ||
| Response Time | 1 min | |
| Carbon Dioxide Sensor | ||
| Operation | Non-dispersive infrared (NDIR) | |
| Sampling | Diffusion | |
| Range | 0 to 2000 ppm (fixed) | |
| Annual Drift | ±10 ppm (nominal) | |
| Accuracy | ±(30 ppm+2%) at normal temperature/pressure | |
| Wiring Connections | ||
| C7632A | Terminal block | |
| C7632B | 20-gauge cable with three 6 in. leadwires | |
| Approvals | CE Underwriters Laboratories Inc. Listed, File No. E4436 cUL |
|
| C7632B | Flammability Rating, UL94-5V | |
| C7632A | NEMA1 | |
| C7632B | NEMA3 | |
