Senva TGD-BCX-AS : Duct Mount Toxic Gas CO Sensor/Controller, BACnet MS/TP, Modbus RTU, Modbus ASCII Output, LCD Display, Solid/Opaque Enclosure, 7-Year Warranty
The Senva TGD-BCX-AS is a duct-mounted toxic gas carbon monoxide (CO) sensor/controller featuring BACnet MS/TP, Modbus RTU, and Modbus ASCII output capabilities. It includes an LCD display with a solid/opaque enclosure, all backed by a 7-year warranty. The TGD-BCX-AS finds applications in ensuring adequate airflow in occupied spaces, making it ideal for parking lot garages. It serves to alert occupants of elevated gas levels and enables the direct control of exhaust fans. The specifications include a power supply of 15-30VDC/24VAC, BACnet/Modbus protocol over RS-485, selectable baud rates, fan relay with setpoints, alarm relay with setpoints, a 3-1/2 digit LCD display indicating CO and NO2 levels, LED indicators for normal, warning/fan relay, and alarm/alarm relay statuses. An audible alarm with a 85dB piezo transducer is present, and the CO sensor performance is based on electrochemical technology.
Applications
- Ensure adequate air flow in occupied spaces
- Ideal fo parking lot garages
- Alert occupants of elevated gas levels
- Directly control exhaust fans
Specifications
| Power Supply | 15-30VDC/24VAC(1), 4W max, 160mA max. |
| BACnet /Modbus | |
| Protocol RS-485 | BACnet MS/TP, Modbus RTU, Modbus ASCII |
| Baud Rates | 9600, 19200, 38400, 57600, 76800, 115200 |
| Fan Relay | |
| Fan relay characteristics | N.C. 1A@24/30VDC (50/60Hz) (no mains connection) |
| CO fan relay setpoint | 25ppm (default), 0-1000 ppm (menu selectable) |
| Alarm Relay | |
| Alarm relay characteristics | N.C. 1A@24/30VDC (50/60Hz) (no mains connection) |
| CO alarm relay setpoint | 100ppm (default), 0-1000 ppm (menu selectable) |
| Display | |
| 3-1/2 digit LCD | Indicates CO ppm (menu selectable) |
| LEDs | |
| Green, Yellow, Red | Green = Normal, Yellow = Warning/Fan Relay, Red = Alarm/Alarm Relay |
| Audible Alarm Exposure | |
| 85dB Piezo transducer | 30 minutes above alarm setpoint per UL2034 (menu selectable) |
| CO Sensor Performance | |
| Type | Electrochemical |
| Accuracy | ±5% of default range(2) ±5%of reading above 200ppm |
| Resolution | 1ppm |
| Certifications | UL2034 Listed Component |
| Life expectancy | >7 years |
| Coverage Area | 5000-7500 square feet (placed within 50' apart from a Senva TG sensor) |
| Enclosure (Wall & Duct) | |
| Material | ABS/Polycarbonate |
| Dimensions | 4.0”h x 4.4”w x 2.1”d (+6.8” probe for duct version) |
| Conduit Opening | Tapped 1/2” NPT |
| Rating | IP20 |
| Compliance | UL61010-1 Listed UL, cUL, CE |
Datasheets
- Enclosure Style:
- Duct
- Gas Element:
- Carbon Monoxide
- Analog Output:
- 0
- Relay Output:
- 2 SPDT
- Communication:
- BACnet MS/TP
- Display:
- LCD Display
