T6615

The T6615 series Dual Channel Sensor. The two channels can be described as a CO2 channel that measures gas concentration and a reference channel that measures the sensor signal intensity. The sensor has dual-channel non dispersive infrared (NDIR), gold plated optics, diffusion or flow through sampling methods. The T6615 performs periodic self-calibrations using the reference channel. The self calibrations are approximately every 24 hours but can also be initiated by sending a command. During the self calibration the sensor PPM reading is frozen, it will not react to changing CO2. The calibration time is adjustable but nominally two minutes. Over time the minor electrical and mechanical changes can affect the sensor accuracy. With the exception of operation in harsh environments the rate of signal change is a decaying function, thus the longer the sensor operates the more stable it will become. The reference channel will correct for these changes over time.

• Flexible CO2 sensor platform designed to interact with other microprocessor devices
• Designed for applications where ABC logic cannot be used
• Three-point calibration process for enhanced stability, accuracy and reliability
• Sensor may be field calibrated
• 0 to 50000ppm Measurement range
• 75ppm or 10% of Reading accuracy
• UART at 19200baud digital output
• 0 to 4VDC Analogue output
• 0.9W Peak power consumption
• Interface connections designed for 12-pin male header with 0.1in (2.54mm) spacing