COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61  Roznov pod Radhostem
CZECH REPUBLIC
Tel.: +420 571 653 990

E-mail: info@cometsystem.com


 

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T5440 CO2 concentration transmitter with RS485 interface

code: T5440
CO2 - carbon dioxide level sensor.

Included in delivery:

carbon dioxide

 

 

Transmitter is also equipped with an alarm LED:

LED shines green - CO2 concentration 0 to 1000 ppm

LED shines yellow - CO2 concentration 1001 to 1200 ppm

LED shines red - CO2 concentration 1201 ppm and more


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Features

The CO2 - carbon dioxide level is recently regarded as an important parameter that substantially determines the quality of the interior climate. Especially in buildings where many people gather, such meeting rooms, hospitals, schools, cinemas, theatres and care centres. With the help of CO2 sensor engineers, technical advisors, environmental experts and health specialists can optimize the ventilation for creation of a healthy interior climate.

Method of CO2 sensor multipoint calibration leads to an excellent accuracy measurements of CO2 in the entire of operating temperature range. With this sensor is the device able to meet the demanding requirements for outdoor use. The measurement principle is based on the NDIR principle  with dual wavelength, which automatically compensates for aging of the sensor. The sensor is resistant against the pollution and provides maintenance-free operation and excellent long-term stability.

 

APPLICATIONS - measuring of CO2 level at:

  • building HVAC management
  • climate technology
  • schools, universities
  • meeting rooms, hospitals, cinemas, theatres
  • weather stations

Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals.

The CO2 concentration sensor is built inside the case.

Large dual line LCD is an advantage. Display is possible to switch off. Computerized design ensures maximum long term stability and failure indication.

Measured CO2 concentration values are converted to RS485 serial output. Transmitter circuitry is galvanically isolated from power circuitry to prevent collision in RS485 network.

Serial output RS485 - transmitter works with ModBus RTU communication protocol or with Advantech ADAM compatible protocol. Protocol is user selectable in special configuration mode by means of the PC. Serial link enables to read actual readings and modify transmitter configuration. Instrument works always in slave mode, i.e. responds only to master device query. Transmitters have the address space available from 1 to 255. Communication speed is 110 to 115200Bd.

SOFTWARE:

  • Comet Database
    Complex solution for data acquisition and analysing. Easy to use and high flexible database software for Comet Transmitters and Regulators.


  • T-Sensor software
    Free configuration utility for Comet Transmitters and Regulators.

  • SensorReader software
    Basic data acquisition utility for Comet Transmitters and Regulators. Software is free for download.

  Online Monitoring system with RS485/232 sensors

Technical Data

Technical parameters Value
Output RS485
Measured Value CO2
Construction Type Ambient Air
Design Industrial
Temperature Measuring Range to °C
Relay Output No
Two-State Input No
Lcd Display Yes
PoE No
Range of CO2 concentration measurement 0 to 2000 ppm
Accuracy of CO2 concentration measurement ±(50ppm +2% from reading) at 25°C and 1013hPa
Optional range of CO2 concentration measurement 0 to 10000ppm ±(100ppm +5% from reading) at 25°C and 1013hPa
Measuring interval of CO2 15s
Temperature operating range -30 to +60°C
Communication protocol ModBus RTU, ARION and Advantech ADAM compatible protocol
Communication speed 110 to 115200 Bd
IP protection IP30
Power 9-30Vdc, power consumption approximately 1W
Dimensions 88.5 x 94 x 39.5 mm (W x H x D)
Weight approximately 145g
Warranty 3 years
T6440 Temperature, humidity, CO2 transmitter with RS485 interface T6440 Temperature, humidity, CO2 transmitter with RS485 interface
code: T6440
Temperature, humidity, CO2 level sensor. Outdoor, indoor use.
H5424 CO2 concentration transmitter with RS485 and two relay outputs H5424 CO2 concentration transmitter with RS485 and two relay outputs
code: H5424
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