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Key Features
- 24V AC/DC Power Supply
- Pluggable terminal block
- Automatic object configuration
- 3x 0-10V outputs (Network writeable)
- Volt free contact output (Network writeable)
- Typical 10+ year life expectancy
- Self-calibrating CO2 sensor
- Flanged enclosure with hinged lid for ease of installation
- UK MANUFACTURED
Technical Specification
| Power Supply | 24V AC/DC ±10% |
| Power Consumption | 50mA Max |
| Bacnet | MS/TP over RS485 |
| Baud:9k6, 19k2, 38k4 or 76k8 | |
| 127 Address (1/10th Load) | |
| Full specification available on request | |
| Analogue Outputs | 3x 0-10V |
| VFC Output | SPST - 100mA @ 24V Max |
| CO2 Range | 0 - 10,000ppm |
| CO2 Output scaling | 0 - 2,000 / 5,000 ppm |
| CO2 Accuracy | ±40ppm +3% @NTP |
| CO2 Sensing Method | Non Dispersive Infra-red (NDIR) |
| CO2 Typical Sensor Life | 10+ years |
| Temp Range | 0 - 50°C |
| Temp Accuracy | ±0.3°C @ 25°C |
| RH Range | 0 - 100% |
| RH Accuracy | +/-2% @ 20 - 80% |
| Operating Conditions | Temp 0°C to 50°C |
| Humidity 0 to 95% (NC) | |
| Sampling Method | Diffusion |
| Warm-up Time | 30 seconds |
| IP Rating | IP66 (external to duct) |
| Housing Material | Flame Retardant ABS/PC |
| Approval | CE |
Dimensions
| Height | 152 mm |
| Width | 110 mm |
| Depth | 50 mm |
| Probe Length | 200 mm |
Installer Selectable Options
- CO2 Analogue output (2,000 / 5,000 ppm)
- Relay set point (see below)
The unit has two user selectable programmes to control the volt free contact set point depending on the application.
These are as follows:
| Program | Ventilation | Gas Safety | Relay Position | Normally Open | Normally Closed |
|---|---|---|
| Relay Set Point | 1,000ppm | 4,500ppm |
Part Numbers & Options / Accessories
| Part No | Description |
|---|---|
| DBAC-CO2 | Duct BACnet Sensor - CO2 |
| DBAC-CO2TH | Duct BACnet Sensor - CO2, Temp & RH |
| DBAC-TH | Duct BACnet Sensor - Temp & RH |
