Product Overview:
The BASICEVO Infrared Gas Sensor for Tetrafluoroethane R448a is designed for detecting gas concentrations up to 2000 ppm. It features pre-calibration, low drift, and gas entry by diffusion. The sensor operates on a 3.3 - 6 V DC supply voltage and supports Modbus ASCII or RTU communication protocols. Status is indicated via an LED.

Applications:
This sensor is suitable for use in hotel air conditioning, food storage rooms, industrial refrigeration, food transport, and research environments.

Available Equipment:
Accessories include a connect interface, wall mount enclosure, calibration software, and mounting equipment. It is also available as a complete transmitter.

General Features:
The sensor uses a Non-Dispersive Infra-Red (NDIR) dual wavelength measurement principle. It has a measurement range of 0 to 2000 ppm and dimensions of 62 mm x 37 mm x 30 mm. The warm-up time is less than 2 minutes for start-up, less than 11 minutes for fade-in, and less than 30 minutes for full specification.

Measuring Response:
The response time (t90) is approximately 60 seconds with a digital resolution of 1 ppm. The detection limit is ≤ 10 ppm, repeatability is ≤ ± 10 ppm, and linearity error is ≤ ± 15 ppm. Long-term stability is ≤ ± 30 ppm for zero and ≤ ± 40 ppm for span over a 12-month period.

Influence of Temperature, Pressure, and Flow Rate:
Temperature dependence for zero is ≤ ± 1 ppm per °C and for span is ≤ ± 3 ppm per °C. Pressure dependence is + 0.100% of the actual reading per hPa.

Electrical Parameters:
The sensor requires a supply voltage of 3.3 to 6.0 VDC with a peak supply current of < 400 mA at 3.3 V and < 240 mA at 5.0 V. Inrush current is < 450 mA, and average power consumption is < 800 mW. It outputs a digital signal via Modbus ASCII/RTU.

Climatic Conditions:
Operating temperature ranges from -20 to +40 °C, with storage temperatures from -20 to +60 °C. It operates under air pressure of 800 to 1150 hPa and ambient humidity of 0 to 95% relative humidity (non-condensing).

Additional Information:
All specifications are subject to change without notice. Recalibration is recommended at first initiation and periodically thereafter. For more details, visit the smartGAS website or contact their sales team.