Comet T6440 – Temperature, Humidity, CO2 Transmitter with RS485 Interface

• T6440 Temperature, Humidity, CO2 Transmitter with RS485 Interface
• Protocol compatible with Advantech-ADAM standard
• The device supports communication protocol ARiON version 1.00
• The device supports communication with HWg-Poseidon units

CO2 concentration, temperature, and relative humidity t-line Web sensor. Remote alarm. Web Sensor with built-in CO2 concentration, relative humidity, and temperature sensors.

A multiple-point CO2 and temperature adjustment procedure lead to excellent CO2 measurement accuracy over the entire temperature working range; this is a must for process control and outdoor applications. The dual wavelength NDIR CO2 sensing procedure compensates automatically for aging effects. The CO2 module is highly resistant to pollution and offers maintenance-free operation and outstanding long-term stability.

High precision capacitive polymer sensor ensures excellent long-term calibration stability and ultimate accuracy. Dual-line LCD is an advantage. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy.

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

Applications

• Building HVAC management
• Building HVAC automation
• Warehouses
• Glasshouses
• Manufacturers
• Museums, archives, galleries
• Air-conditioned rooms
• Weather stations