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H2S-A1 HyH2S-A1 HyH2S-A1 HyH2S-A1 HyH2S-A1 Hydrdrdrdrdrogogogogogen Sulfen Sulfen Sulfen Sulfen Sulfide Sensoride Sensoride Sensoride Sensoride Sensor
Figure 1 H2S-A1 Schematic Diagram
All dimensions in millimetres (± 0.1mm) Top ViewBottom ViewSide View PERFORMANCE SensitivitynA/ppm in 20ppm H
2 S550 to 875Response timet
90 (s) from zero to 20ppm H
2 S< 25Zero currentppm equivalent in zero air< 0.3ResolutionRMS noise (ppm equivalent)< 0.05Rangeppm H
2 Slimit of performance warranty100Linearityppm error at full scale, linear at zero and 20ppm H
2 S0 to - 4Overgas rangemaximum ppm for stable response to gas pulse500 LIFETIME Zero driftppm equivalent change/year in lab air< 0.1Sensitivity drift% change/year in lab air, monthly test< 4
Operating lifemonths until 80% original signal
(24 month warranted) > 24 ENVIRONMENTAL Sensitivity @ -20°C% (output @ -20°C/output @ 20°C) @ 20ppm78 to 93Sensitivity @ 50°C% (output @ 50°C/output @ 20°C) @ 20ppm100 to 110
Zero @ -20°Cppm equivalent change from 20°C< ± 0.2
Zero @ 50°Cppm equivalent change from 20°C< ± 0.2 CROSS SO
2 sensitivity% measured gas @ 20ppmSO
2 < 10 SENSITIVITY NOsensitivity% measured gas @ 50ppmNO< 4NO
2 sensitivity% measured gas @ 10ppmNO
2 < -20Cl
2 sensitivity% measured gas @ 10ppmCl
2 < -25H
2 sensitivity% measured gas @ 400ppmH
2 < 0.2C
2 H
4 sensitivity% measured gas @ 400ppmC
2 H
4 < 0.5COsensitivity% measured gas @ 400ppmCO< 1.5NH
3 sensitivity% measured gas @ 20ppmNH
3 < 0.1 KEY Temperature range°C-30 to 50 SPECIFICATIONS Pressure rangekPa80 to 120Humidity range% rh continuous15 to 90Storage periodmonths @ 3 to 20°C (stored in sealed pot)6Weightg< 6
TTTTTececececechnical Specifhnical Specifhnical Specifhnical Specifhnical Specificaicaicaicaicationtiontiontiontion 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) 1376 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com