Comet H5324 – CO2 Concentration Transmitter w/RS232 and Two Relay Outputs

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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 as 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 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 the aging of the sensor. The sensor is resistant to pollution and provides maintenance-free operation and excellent long-term stability.

Large dual line LCD is an advantage. Display is possible to switch off. Computerized design ensures maximum long-term stability and failure indication. Transmitter contains a microprocessor-based control circuitry in a durable plastic case with connection terminals.

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.

Applications

• Building HVAC management
• Climate technology
• Schools, universities
• Meeting rooms, hospitals, cinemas, theatres
• Weather stations

Transmitter is equipped with two relay outputs for alarm indication or control of external devices. Each relay can be assigned to any measured or computed value. For each relay setting of delay, hysteresis, an audible alarm is enabled.

Parameters are easily adjustable from regulator keyboard or from the computer.

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. The 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 a non-aggressive environment.

Software

• Comet Database
• Complex solution for data acquisition and analysis. Easy to use and high flexible Database software for Comet Transmitters and Regulators.
• Sensor RS485/232 utility
• Allows communication of sensors with RS485/RS232 output and sending data to Comet Database.
• 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