ELECTROCHEMICALGASSENSORS SPECIFICATION SHEET FOR CO SENSOR TYPE CO/SF-500PERFORMANCE CHARACTERISTICS Nominal Range 0 – 500 ppm Maximum Overload 1’000 ppm Inboard Filter To remove acid gases Expected Operation Life 3 years in air Output Signal 250 ± 50 nA/ppm Resolution 0.2 ppm Temperature Range - 20 °C to 45 °C Pressure Range Atmospheric ± 10% Pressure Coefficient No data T90 Response Time < 40 sec Relative Humidity Range 15 % to 90 % R.H. non-condensing Typical Baseline Range (pure -1 to 1 ppm air, 20°C) Maximum Zero Shift (+20°C 4 ppm to +40°C) Expected Long Term Output < 2 % signal Drift loss/month Recommended Load Resistor 10 Ohm Bias Voltage Not recommended Repeatability < 2 % of signal Output Linearity Linear CROSS-SENSITIVITY DATA Interfering Gas Cross-Sensitivity (%) H2S 0 SO2 0 NO 0 NO2 0 H2 < 60 Performance data conditions: 20 °C, 50% RH and 1013 mbar APPLICATIONS Continuous Air Quality Monitoring Safety and Environmental Control PHYSICAL CHARACTERISTICS Weight ~ 32 g Position Sensitivity None Storage Life Six months in container Recommended Storage 5 °C – 20 °C Temperature Warranty Period 12 months from date of dispatch Standard-Size Outline DimensionsBOTTOM VIEW60°ReferenceSensing60°Counter30 mm34.4 mm3 Mounting Holes3.0 mmEquispaced on34.4 mm PCDSIDE VIEW41 mm8 mm4.5 mmPin Projection1 mm Pinson 34.4 mm PCD ELECTROCHEMICALGASSENSORS SPECIFICATION SHEET FOR CO SENSOR TYPE CO/SF-500 TEMPERATURE DEPENDENCE The output of an electrochemical sensor varies with temperature. The graphs below show the variation in output with temperature for this type of sensor. The results are shown in the graphs as a mean for a batch of sensors, along with confidence intervals corresponding to ±3 times the standard deviation. The sensitivity dependence is expressed as a percentage of the signal at 20 °C. The shift in baseline is shown in ppm referenced to 20 °C. Sensitivity Temperature Dependence120%110%Output (referenced to 20 °C)100%90%80%70%60%50%-20-10010Temperature (°C)203040Mean+3SD-3SD Baseline Temperature Dependence4 Baseline ppm equivalent (referenced to 20 °C)321Mean+3SD-3SD2030400-1-20-10010Temperature (°C) The data contained in this document is for guidance only. Membrapor AG accepts no liability for any consequential losses, injury or damage resulting from the use of this document or the information contained within it. The data is given for guidance only. Customers should test under their own conditions, to ensure that the sensors are suitable for their own requirements.
