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 thissensor 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 operationand excellent long-term stability.
Measured temperature and relative humidity values are also converted to other humidity interpretation - dew point temperature, absolute humidity, specific humidity, mixing ratio or specific enthalpy. Degrees Celsius and Fahrenheit are user selectable.
APPLICATIONS - measuring of temperature, humidity and 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 and temperature an relative humidity sensors in a filter with stainless steel mesh. 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.
State-of-the-art capacitive polymer sensor ensures excellent calibration long term stability, inertia against water and condensation. Transmitter is designed for use in non-aggressive environment.
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:
|
 |
| Technical parameters | Value |
|---|---|
| Output | RS485 |
| Measured Value | CO2 + Temperature + Relative Humidity |
| Construction Type | Ambient Air |
| Design | Industrial |
| Temperature Measuring Range | -30 to 60 °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 |
| Relative humidity range | 0 to 100% |
| Accuracy of relative humidity measurement | ±2.5% relative humidity from 5 to 95% at 23°C |
| Accuracy of temperature output | ±0.4°C |
| Available temperature units | degrees Celsius, Fahrenheit |
| Accuracy and range of dew point temperature output - for more details see graphs | ±1.5°C at ambient temperature T<25°C and RH>30% range -60 to +80 °C |
| Accuracy and range of absolute humidity output | ±1.5g/m3 at ambient temperature T < 25°C range 0 to 400 g/m3 |
| Accuracy and range of specific humidity output | ±2g/kg at ambient temperature T < 35°C range 0 to 550 g/kg |
| Accuracy and range of mixing ratio output | ±2g/kg at ambient temperature T < 35°C range 0 to 995 g/kg |
| Accuracy and range of specific enthalpy output | ±3kJ/kg at ambient temperature T < 25°C range: 0 to 995 kJ/kg |
| Measuring interval of CO2 | 15s |
| Temperature operating range | -30 to +60°C |
| Communication protocol | ModBus RTU and Advantech ADAM compatible protocol |
| Communication speed | 110 to 115200 Bd |
| Filtering ability of sensor cover | 0.025mm - filter with stainless steel mesh |
| Protection of the case with electronics | IP30 electronics, IP40 sensors |
| Power | 9-30Vdc, power consumption approximately 1W |
| Dimensions | 88.5 x 170 x 39.5 mm (W x H x D), stem length 75 mm |
| Weight | approximately 175g |
| Warranty | 2 years |
File:
| Tx3xx and Tx4xx protocols |
425.01 KB |  |
| Instruction manual T5/6_3/4 |
1.52 MB | |
| Quick-Start Manual T5/6_3/4 |
667.67 KB | |
| Comet Digital Sensors Catalog |
3.27 MB | |
This Product was added to our catalogue on Thursday 31 March, 2016.
