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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
TGS-CO REPLACEMENT SENSOR ELEMENT, CO   $ 100.00
TGS-NO2 REPLACEMENT SENSOR ELEMENT, 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 +/-10% of reading @ 20oC
  Reproducibility <+/-2% of reading
  Response time  < 15 seconds
  Certifications UL2034 Recognized Component
  Long term stability <+/-5% per year
  Life expectancy >5 years
NO2 Sensor Performance Type Electrochemical
  Accuracy +/-10% of reading @ 20oC
  Reproducibility <+/-3% of reading
  Response time  < 15 seconds
  Certifications None
  Long term stability <+/-5% per year
  Life expectancy >5 years
Operating Environment Temperature, continous  -20 to 40°C
  Temperature, intermittent  -30 to 55°C
  Humidity 15-95% continuous, 0-95% intermittent
Enclosure Material ABS/Polycarbonate
  Dimensions 4.0”h x 4.4”w x 2.1”d
  Conduit Opening Tapped 1/2" NPT

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