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CL2-D4 Chlorine Sensor

CL2-D4 Chlorine Sensor
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Zero drift Sensitivity drift Operating life CL2-D4 Chlorine SensorMiniature Size PATENTED Counter-Not Used- PERFORMANCE Sensitivity nA/ppm in 10ppm Cl2 -200 to -450 Response time t90 (s) from zero to 10ppm Cl2 < 35 Zero current ppm equivalent in zero air ± 0.8 Resolution RMS noise (ppm equivalent) < 0.1 Range ppm Cl2 limit of performance warranty 20 Linearity ppm error at full scale, linear at zero and 10ppm Cl2 ± 0.5 Overgas limit maximum ppm for stable response to gas pulse 60 ppm equivalent change/year in lab air nd % change/month in lab air, twice monthly test nd months until 80% original signal (24 month warranted) > 24 Zero @ -20°C ppm equivalent change from 20°C -0.4 to 0.4 Zero @ 50°C ppm equivalent change from 20°C 0 to 0.5 CROSS H2S sensitivity % measured gas @ 20ppm H2S < -20 SENSITIVITY NO2 sensitivity % measured gas @ 10ppm NO2 < 80 NO sensitivity % measured gas @ 50ppm NO < 0.5 SO2 sensitivity % measured gas @ 20ppm SO2 < 1 CO sensitivity % measured gas @ 400ppm CO < 0.1 H2 sensitivity % measured gas @ 400ppm H2 < 0.1 NH3 sensitivity % measured gas @ 20ppm NH3 < 0.1 Humidity range %rh (see note below) 15 to 90 Storage period months @ 3 to 20OC (stored in sealed pot) 6 Load resistor Q (for optimum performance) 33 Note: Above 85% rh and 40oC a maximum continuous exposure period of 10 days is warranted. Where such exposure occurs the sensor will recover normal electrolyte volumes when allowed to rest at lower % rh and temperature levels for several days. At the end of the product’s life, do not dispose of any electronic sensor, component or instrument in the domestic waste, but contact the -—®s,s instrument manufacturer, Alphasense or its distributor for disposal instructions. 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 own requirements. Alphasense Ltd, Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. CM77 7AA. UK Telephone: +44 (0) 1376 556 700 Fax: +44 (0) 1376 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com

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Perf erformance Data CL2-D4 Performance Data Figure 2 Response to 10ppm Cl2 500 Figure 2 shows response to 10ppm Cl2. 0 This data is taken from a typical batch of sensors. Time (s) Zero output, referenced to 20oC (equivalent ppm) Figure 3 shows the variation in the zero by changes in temperature, expressed as equivalent ppm, referenced to zero at 20oC This data is taken from a typical batch of sensors. Figure 4 Load Resistor Dependence 40 Figure 4 shows the effect of the load resistor on noise. Higher resistance reduces sensor noise, but also linearly increases response time. Technical...

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