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Home > Toxic Gas (CO & NO2) > CO & NO2 - BACnet/Modbus

CO & NO2 - BACnet/Modbus

 

  • Supports BACnet MS/TP and Modbus RTU networks
  • Auto-configuration detects network baud rate, serial format, protocol type and self-addresses
  • Standard LCD, LED indicators and Audible Alarm
  • Integrated setpoint fan and alarm relays

 

Applications

  • Ensure adequate air flow in occupied spaces
  • Directly control exhaust fans
  • Monitor multiple toxic gases with one mounted unit

Description

Senva TG Series sensors can be ordered as individual CO or NO2 sensors or as a combination CO/NO2 sensor in a shared enclosure. The BACnet/Modbus protocol sensor supports BACnet MS/TP and Modbus communication in one unit. Standard features include network auto-configuration, a programmable fan relay, LED indicators, integrated display and audible alarm. 

Product     Price   Quantity
TGW-BC TG, WALL MOUNT, BACNET/MODBUS, CO   $ 825.00
TGW-BC-S TG, WALL MOUNT, BACNET/MODBUS, CO, SOLID WHITE LID   $ 825.00
TGW-BN TG, WALL MOUNT, BACNET/MODBUS, NO2   $ 900.00
TGW-BN-S TG, WALL MOUNT, BACNET/MODBUS, NO2, SOLID WHITE LID   $ 900.00
TGW-BCN TG, WALL MOUNT, BACNET/MODBUS, CO/NO2   $ 1,050.00
TGW-BCN-S TG, WALL MOUNT, BACNET/MODBUS, CO/NO2, SOLID WHITE LID   $ 1,050.00
TGM-BC TG, METAL, BACNET/MODBUS, CO   $ 975.00
TGM-BC-S TG, METAL, BACNET/MODBUS, CO, SOLID LID   $ 975.00
TGM-BCN TG, METAL, BACNET/MODBUS, CO/NO2   $ 1,200.00
TGM-BCN-S TG, METAL, BACNET/MODBUS, CO/N02, SOLID LID   $ 1,200.00
TGM-BN TG, METAL, BACNET/MODBUS, NO2   $ 1,050.00
TGM-BN-S TG, METAL, BACNET/MODBUS, NO2, SOLID LID   $ 1,050.00
TGS-CO REPLACEMENT SENSOR, CO   $ 100.00
TGS-NO2 REPLACEMENT SENSOR, NO2   $ 120.00
CO-TGA CO/NO2 Test Gas Adapters 1/8" Brass Hose Barb Adapter   $ 90.00

CLICK ON LISTED ITEM FOR SPECIFICATIONS.

List prices shown; trade pricing appears on orderpad for Senva Trade Accounts.
For qualified trade pricing, please contact us at 866-660-8864.
Oregon has no sales tax.

Cost-effective dual gas sensing and control

  • Integrated display, LED indicators, audible alarm
  • Menu selectable 0-5/10V, 1-5V and 4-20mA outputs (0-10V default)
  • Dual outputs support daisy chain wiring to cost-effectively sense and control large areas
  • Order as individual CO or NO2 sensor, or specify both sensing elements in one enclosure

High reliability reduces call backs

  • Temperature compensated elements for maximum accuracy
  • UL2034 recognized electrochemical CO sensing element
  • 5 year life expectancy on CO and NO2 elements
  • Warning indicators alert occupants when element’s lifecycle is near end for replacement
  • 7-year limited warranty on electronics; 2-year on elements

Versatility with BACnet/Modbus model

  • Supports BACnet MS/TP and Modbus RTU networks
  • Auto-configuration detects network baud rate, serial format, protocol type and self-addresses

Easy to install

  • Test mode speeds up field commissioning for verifying warning indicators and relay functions
  • Push buttons and LCD to navigate setting parameters
                                                                                                  SPECIFICATIONS
Power Supply   15-30VDC/24VAC(1), 4W Max, 120mA
BACnet/Modbus Baud Rates 9600, 19200, 38400, 57600, 76800, 115200
  Supported Protocols BACnet MS/TP, Modbus RTU, Modbus ASCII
Fan Relay Fan Relay Characteristics N.C. 10A@125VAC, 5A@30VDC 
  CO Fan Relay Setpoint 25ppm (default), 0-1000ppm (menu selectable)
  NO2 Fan Relay Setpoint 1ppm (default), 0-20ppm (menu selectable)
Display 3-1/2 digit LCD Indicates CO ppm, NO2 ppm (menu selectable)
LED’s Green, Yellow, Red Green = Normal, Yellow = Relay, Red = Alarm
Audible exposure alarm 85dB Piezo transducer 30 minutes above alarm setpoint per UL2034 (menu selectable)
CO Sensor Performance Type Electrochemical
  Accuracy +/-5% of full scale(2) @ 20oC
  Reproducibility <+/-2% of reading
  Response time (T90)  < 30 seconds
  Certifications UL2034 Recognized Component
  Long term stability <+/-5% per year
  Life expectancy >5 years
  Coverage Area 5000-7500 square feet
NO2 Sensor Performance Type Electrochemical
  Accuracy +/-5% of full scale(3) @ 20oC
  Reproducibility +/-2% (same day)
  Response time (T90)  < 25 seconds
  Long term stability < 2% per month
  Life expectancy >5 years
  Coverage Area 5000-7500 square feet
Operating Environment Temperature, continous  -20 to 40°C
  Temperature, intermittent  -30 to 55°C
  Humidity 15-95% continuous, 0-95% intermittent
Enclosure (Wall & Hose Barb) Material ABS/Polycarbonate
  Dimensions 4.0”h x 4.4”w x 2.1”d
  Conduit Opening Tapped 1/2" NPT
Enclosure (Metal) Material & Enclosure Rating Powder coated steel / acrylic, NEMA 3R
  Dimensions 5.0"h x 4.3"w x 2.25"d
  Opening Dual air vents on bottom of enclosure
  Mounting Pre-drilled for 2"x4" electrical box

(1) One side transformer secondary is connected to signal common. Dedicated transformer is recommended.

(2) Carbon Monoxide full scale is 200 ppm

(3) Nitrogen Dioxide full scale is 20ppm