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SO2-D4

SO2-D4
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SO2-D4 Sulfur Dioxide Sensor Dioxide Technical specifications Version 1.0 Miniatur Size ture Miniature Size Figure 1 SO2-D4 Dioxide Sensor - Miniature Size SO2-D4 Sulfur Schematic Diagram Bottom View View Bottom PERFORMANCE Sensitivity Sensitivity Performance Response time Response time Zero current Zero current Resolution Resolution RangeRange Linearity Linearity Overgas Overgas limitlimit LIFETIME Lifetime Zero drift drift Zero Sensitivity drift Sensitivity drift Operating Operating life life Side View Side View nA/ppm in 10ppm SO2 nA/ppm in 10ppm SO2 180 to 420 t90 (s) from zero to 10ppm SO2 t90 (s) from zero to 10ppm SO2 < 15 ppm equivalent zerozero air in air ppm equivalent in ± 0.7 RMS noise (ppm equivalent) RMS noise (ppm equivalent) < 0.2 ppm limit of performance warranty ppm limit of performance warranty 20 ppm error at full scale, at zero at 10ppm <5 ppm errorat full scale, linear linearand zero and 10ppm maximum ppm stable response to gas pulse 50 maximumppm forfor stable response to gas pulse ppm equivalent change/year in lab air ppm equivalent change/year in lab air < 0.2 % change/year in lab air, monthly test <6 % change/year in lab air, monthly test months until 80% original signal (24-month warranted) warranted) months until 80% original signal (24 month > 18 Sensitivity @ -20°C % (output @ -20°C/output @ 20°C) 10ppm 72 to 88 Environmental ENVIRONMENTAL Sensitivity -20°C % % (output @ 50°C/output @ 20°C) @ 20°C) 10ppm to 95 @ 50°C 10ppm 74 Sensitivity @ (output @ -20°C/output Zero @ -20°C ppm equivalent change from 20°C < Sensitivity @ 50°C % (output @ 50°C/output @ 20°C) 10ppm ± 0.5 Zero @ 50°C ppm equivalent change from 20°C < ± 0.5 Zero @ -20°C ppm equivalent change from 20°C Zero @ 50°C ppm equivalent change from 20°C Cross Sensitivity CROSS SENSITIVITY H2S sensitivity NO2 sensitivity sensitivity Cl2 sensitivity sensitivity NO sensitivity sensitivity CO sensitivity H2 sensitivity sensitivity C2H4 sensitivity sensitivity NH3 sensitivity sensitivity CO2 sensitivity % measured gas @ 20ppm H2S % measured gas @ 10ppm NO %%measured gas @ 20ppm Cl 22S H measured gas @ 10ppm 2 %%measured gas @ 10ppm NO 2 NO measured gas @ 50ppm %%measured gas @ 10ppm Cl2 measured gas @ 400ppm CO measured gas @ 400ppm H2 %%measured gas @ 50ppm NO measured gas @ 400ppm %%measured gas @ 400ppm C2H4 CO % measured gas @ 20ppm % measured gas @ 400ppm NH3 H2 % measured gas @ 10% CO2 H2S NO2 Cl2 NO CO H2 C2H4 sensitivity % measured gas @ 400ppm C2H4 NH3 sensitivity % measured gas @ 20ppm NH3 Temperature range °C CO2 Pressure range % measured gas @ 10% sensitivity CO2 Humidity range kPa % rh (see note below) OC months @ 3 to 20°C (stored in sealed pot) kPa(for optimum performance) � g %rh (see note below) KEY Temperatureperiod Storage range SPECIFICATIONS Pressure range Load resistor Weight Humidity range Storage period months @ 3 to 20OC (stored in sealed pot) Load resistor Ω (for optimum performance) Weight g At the end of the productʼs life, do not dispose of any electronic sensor, component or instrument in the domestic waste, but contact the instrument manufacturer, Alphasense or its distributor for For instructions. T: +44 (0)1376 556700 E: sensors@alphasense.com W: www.alphasense.com disposal further information on the performance of this sensor, on other sensors in the range or any other subject, please contact Alphasense Ltd. or visit our website at “www.alphasense.com”. NOTE: all sensors are tested at ambient environmental conditions, with 47 ohm load resistor, unless otherwise stated. As applications

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SO2-D4 Perfomance Data Perf erfomance Data Technical specifications Version 1.0 Figure 1 Sensitivity Temperature Dependence Figure 2 Sensitivity Temperature Dependence Perf erfomance Data SO2-D4 Perfomance Data o % nA output,Zero output,to 20Zero output, oreferenced to 20oC (equivalent ppm) % output to 20OC) output (referenced to 20OC) % output (referenced (referenced to 20OC) Zero referenced referenced to 20 Cppm) C (equivalent (equivalent ppm) Figure 2 shows the variation in sensitivity caused by changes in temperature. This data is taken from a typical batch of sensors. Figure shows the...

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