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H2S-BH Hydrogen Sulfide Sensors

H2S-BH Hydrogen Sulfide Sensors
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Figure 1 H2S-BH Schematic Diagram PATENTED > All dimensions in millimetres ( 0.1mm) Top ViewBottom ViewSide View PERFORMANCE SensitivitynA/ppm in 20ppm H > 2 S1,400 to 2,000Response timet > 90 (s) from zero to 20ppm H > 2 S< 30Zero currentppm equivalent in zero airѱ 0.1ResolutionRMS noise (ppm equivalent)< 0.02Rangeppm H > 2 S limit of performance warranty50Linearityppm error at full scale, linear at zero and 20ppm H > 2 S< 0.3Overgas rangemaximum ppm for stable response to gas pulse200 LIFETIME Zero driftppm equivalent change/year in lab air< 0.02Sensitivity drift% change/year in lab air, monthly test< 2Operating lifemonths until 80% original signal (24 month warranted)> 24 ENVIRONMENTAL Sensitivity @ -20ѰC% (output @ -20C/output @ 20аC) @ 20ppm81 to 96Sensitivity @ 50C% (output @ 50аC/output @ 20C) @ 20ppm102 to 110 Zero @ -20аCppm equivalent change from20Cб 0.1Zero @ 50Cppm equivalent change from 20аC 0.15 CROSS SO > 2 sensitivity% measured gas @ 20ppmSO > 2 < 10 SENSITIVITY NOsensitivity% measured gas @ 50ppmNO< 3NO > 2 sensitivity% measured gas @ 10ppmNO > 2 < -30Cl > 2 sensitivity% measured gas @ 10ppmCl > 2 < -25H > 2 sensitivity% measured gas @ 400ppmH > 2 < 0.25C > 2 H > 4 sensitivity% measured gas @ 400ppmC > 2 H > 4 < 0.1COsensitivity% measured gas @ 400ppmCO< 1NH > 3 sensitivity% measured gas @ 20ppmNH > 3 < 0.1 KEY Temperature rangeѰC-30 to 50 SPECIFICATIONS Pressure rangekPa80 to 120Humidity range% rh continuous15 to 90Storage periodmonths @ 3 to 20C (stored in sealed pot)6Weightg< 13 > TT TTTecec ececechnical Specifhnical Specifhnical Specifhnical Specifhnical Specificaica icaicaicationtion tiontiontion NOTE: all sensors are tested at ambient environmental conditions, with 10 ohm load resistor, unless otherwise stated. As applications of use are outside our control,the information provided is given without legal responsibility. Customers should test under their own conditions, to ensure that the sensors are suitable for their ownrequirements. Alphasense Ltd, Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. CM77 7AA. UKTelephone: +44 (0) 1376 556 700 Fax: +44 (0) 137 6 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com size="-3">

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