SenseAir S8 Manual
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SenseAir S8 Manual

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Datasheet & Manual
®
SenseAir
S8
Miniature CO2 sensor
Model
SE-0031 3.2% CO2
Warning! ESD
sensitive device!
Document PSP 108

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Summary of Contents for SenseAir S8

  • Page 1 Datasheet & Manual ® SenseAir Miniature CO2 sensor Model SE-0031 3.2% CO2 Warning! ESD sensitive device! Document PSP 108...

  • Page 2: Key Technical Specifications

    Note 3: Sensor requires to be exposed to fresh air at least every four weeks. Accuracy is defined after minimum 5 weeks of continuous operation. However, some industrial applications do require maintenance. Please, contact SenseAir for further information! Note 4: Accuracy is specified over operating temperature range.

  • Page 3: Absolute Maximum Ratings

    Table 2. Absolute maximum ratings specification for the SenseAir __________________________________________________________________________________________ Note 1: Specified parameter relies on specification of subcontractor and is not tested by SenseAir Note 2: Refer chapter “Terminal Description” for rated voltage information Note 3: Alarm OC pin is internally pulled up to G+. External pull up to higher voltage will provide resistive divider powering sensor via high resistance.

  • Page 4: Terminals Description

    Terminals description Pin Function Pin description / Electrical specifications Parameter description Power pins Power supply minus terminal Sensor’s reference (ground) terminal G+ referred to Power supply plus terminal Unprotected against reverse connection! 4.5 V to 5.25 V Operating voltage range DVCC_out Output Induced noise or excessive current...
  • Page 5 Max sink current (Note 1) 100 mA Saturation voltage (Note 1) 2.3V to DVCC_out+0.3V Table 3. I/O notations, description and electrical specification (continue, see previous page). __________________________________________________________________________________________ Note 1: Specified parameter relies on specification of subcontractor and is not tested by SenseAir...

  • Page 6: Mechanical Properties

    Installation and soldering During installation and assembly of sensor to PCB it is essential that compatible materials are used and that soldering process is managed. Avoid introduction of stress to the sensor’s PCB or OBA. SenseAir recommends hand soldering only.

  • Page 7: Maintenance

    9 pins 29.7 ±0.1 Maintenance ® SenseAir The models based on platform are basically maintenance free in normal environments thanks to the built-in self-correcting ABC algorithm. Discuss your application with CO2Meter in order to get advice for a proper calibration strategy.

  • Page 8: Self-Diagnostics

    ® Table 5. Switch input default configurations for SenseAir Self-diagnostics The system contains complete self-diagnostic procedures. A full system test is executed automatically every time the power is turned on. In addition, constantly during operation, the sensor probes are checked against failure by checking the valid dynamic measurement ranges.
  • Page 9 Memory Error with software tools. Error during memory operations. Reserved ® SenseAir Table 6. Error codes for Note 1. Any probe is out of range. Occurs, for instance, during over-exposure of CO sensor, in which case the error code will automatically reset when the measurement values return to normal. Could also indicate the need of zero point calibration.

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Se-0031

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