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AX-GS-CD-ST8013 Carbon Dioxide Switch for Ventilation Control Product Overview The AX-GS-CD-ST8012 Is a low cost wall mounted CO2 switch for ventilation control. The unit incorporates an intuitive Visual Level Indicator display for CO2 thresholds to maintain air quality in enclosed spaces (i.e. school classrooms, offices, gymnasiums, theatres etc) Features • Wall mounting • 230V 8A rated output relay • Monitors CO2 over range 600 to 2,000 ppm • 15year calibration interval • 230Vac Power supply • Intuitive Light Display Product Specifications Sensor Type: Range: Calibration Interval: Accuracy: Stability: Temperature Dependance: Power Supply: Consumption: Ambient Temp. Range: Switch: LED Displays: <600 <800 <1000 <1500 <2000 >2000 Housing: Dimensions: Outputs: Output Switch Levels: Anti Recycle Time: Conformity: Country of Origin: Non-dispersive Infra-red 600-2000ppm standard, 15 Years +/- 20ppm Self Calibrating <2% FS over life of sensor (typical 15yrs) 0.2% FS per ’C 85Vac to 265Vac 50/60Hz <1.5 W @nominal voltage of 230Vac 0 to +50’C , 0-95% RH non condensing Auto-On-Off 1st single Blue 2nd single blue Green Yellow Single Red Double Red Flame retardant ABS 100 x 80 x 28 mm Switched Live User selectable at 1000ppm(default) or 1500ppm with hysteresis of 300ppm Min On/Off period 10 minutes in Auto CE marked, EMC, LVD. Mexico Order Codes AX-GS-CD-ST8013 Space Mounted CO2 Switch - Switched Live output AX-GS-CD-ST8013 - Issue 1.2 - Date 28/3/2012 Unit 21, Highview, High Street, Bordon, Hampshire. GU35 0AX. Tel: +44 (0)1420 487788 Fax: +44 (0)1420 487799 Email: [email protected] www.axio.co.uk © Copyright Axio 2004. All Rights Reserved Page 1 of 4 AX-GS-CD-ST8013 Carbon Dioxide Switch for Ventilation Control Mounting Instructions The Room sensor has mounting provisions to install directly on a standard electrical box and should be mounted at a height about five feet from the floor of the area to be controlled. For best operation, do not mount the sensor near doors, opening windows, supply air diffusers or other known air disturbances. ABC Software and Lifetime Guarantee ABC Software ABC (Automatic Background Calibration) Program utilises the computing power in the sensors onboard microprocessor to remember the lowest CO2 concentration that takes place every 24hours. The sensor assumes this low point is at outside levels. The sensor is also smart enough to discount periodic elevated readings that might occur if for example a space was used 24 hours a day over a few days. Once the sensor has collected 14 days worth of low concentration points, it performs a statistical analysis to see if there has been any small changes in the sensor reading over background levels that could be attributable to sensor drift. If the analysis concludes there is drift, a samll correction factor is made to the sensor calibration to adjust to this change. Lifetime Calibration Guarantee Based on the results of years of testing of ABC software, we now offers a lifetime calibration guarantee on all the AX-GS-CD-T81 series. If the sensor is found to be out of calibration more than 150ppm as compared to a calibration Gas or recently calibrated reference. This guarantee only applies if the sensor is operated in an environment where inside levels periodically drop to outside concentrations ( i.e. during evenings or weekends when there is no occupancy) as is required by the ABC software. If a space does not experience a periodic drop to outside levels (i.e. where occupancy is 24Hrs/7days/week),ABC software should be deactivated. With ABC deactivated, calibration may be required every 2 years. Dimensions Every effort has been taken in the production of this data sheet to ensure it’s accuracy. Axio can not, however, accept responsibility for any damage, expense, injury, loss or consequential loss resulting from any errors or omissions. Axio has a policy of continuous improvement and reserves the right to change this specification without notice. AX-GS-CD-ST8013 - Issue 1.2 - Date 28/3/2012 Unit 21, Highview, High Street, Bordon, Hampshire. GU35 0AX. Tel: +44 (0)1420 487788 Fax: +44 (0)1420 487799 Email: [email protected] www.axio.co.uk © Copyright Axio 2004. All Rights Reserved Page 2 of 4 AX-GS-CD-ST8013 Carbon Dioxide Switch for Ventilation Control Wiring Diagram Terminals 1 L (85 to 265Vac) Input 2 N (85 to 265Vac) Input 3 N 4 ON (85 to265Vac) FAN-RELAY Normally Open (N.O.) when the CO2 < threshold Switched Live 5 OFF(85 to265Vac) FAN-RELAY Normally Closed (N.C.) when the CO2 < threshold Switched Live Output AX-GS-CD-ST8013 - Issue 1.2 - Date 28/3/2012 Unit 21, Highview, High Street, Bordon, Hampshire. GU35 0AX. Tel: +44 (0)1420 487788 Fax: +44 (0)1420 487799 Email: [email protected] www.axio.co.uk © Copyright Axio 2004. All Rights Reserved Page 3 of 4 AX-GS-CD-ST8013 Carbon Dioxide Switch for Ventilation Control AX-GS-CD-ST8013 - Issue 1.2 - Date 28/3/2012 Unit 21, Highview, High Street, Bordon, Hampshire. GU35 0AX. Tel: +44 (0)1420 487788 Fax: +44 (0)1420 487799 Email: [email protected] www.axio.co.uk © Copyright Axio 2004. All Rights Reserved Page 4 of 4