Senva TGM-BCN-A : Metal Wall Mount Dual Toxic Gas CO/NO2 Sensor/Controller, BACnet MS/TP, Modbus RTU, Modbus ASCII Output, LCD Display, 7-Year Warranty
The Senva TGM-BCN-A is a dual toxic gas sensor/controller that detects carbon monoxide (CO) and nitrogen dioxide (NO2) in occupied spaces like parking garages. It can act as a standalone controller or connect to building networks via BACnet/Modbus. It features audible alarms, LED indicators, and a customizable display. Users can daisy chain multiple sensors for cost-effective coverage of large areas and directly control exhaust fans based on gas levels.
Applications
- Ensure adequate air flow in occupied spaces
- Ideal fo parking lot garages
- Monitor multiple toxic gases with one mounted unit
- 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 | NO2 fan relay setpoint |
| CO fan relay setpoint | 25ppm (default), 0-1000 ppm (menu selectable) |
| NO2 fan relay setpoint | 1ppm (default), 0-30ppm (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) |
| NO2 alarm relay setpoint | 3ppm (default), 0-30ppm (menu selectable) |
| Display | |
| 3-1/2 digit LCD | Indicates CO ppm, NO2 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) |
| NO2 Sensor Performance | |
| Type | Electrochemical |
| Accuracy | ±5% of default range(3) ±5%of reading above 20ppm |
| Resolution | 0.1ppm |
| Life expectancy | >7 years |
| Coverage Area | 5000-7500 square feet (placed within 50' apart from a Senva TG sensor.) |
| Enclosure (Metal) | |
| Material & Enclosure Rating | Powder-coated steel, NEMA 3R |
| Dimensions | 5.0”h x 4.3”w x 2.25”d |
| Opening | Dual air vents on front lid of enclosure |
| Mounting | Pre-drilled for 2x4” electrical box |
| Rating | IP20 |
| Compliance | UL61010-1 Listed UL, cUL, CE |
Datasheets
- Enclosure Style:
- Wall
- Gas Element:
- Carbon Monoxide / Nitrogen Dioxide
- Analog Output:
- None
- Relay Output:
- 2 SPDT
- Communication:
- BACnet/Modbus
- Display:
- LCD Display
