Hydrogen Sulfide Electrochemical Sensor - Brochure

A1A-764711 Version 2, October 2009 PERFORMANCE Range ................................................................. 0 - 100 ppm Maximum overload........................................... 500 ppm H2S Sensitivity.........................................600 - 1000 nA/ppm H2S Zero in air at 20 °C........................................ <±0.6 ppm H2S Resolution......................................................... 0.1 ppm H2S Linearity ...................................................linear across range Response time, t90....................................................... <35 s Long-term output drift.................................<2% signal/month Warranty .................................................................... 2 years OPERATING CONDITIONS Temperature range ...........................................-20 to +50 °C Operating humidity................15 - 90% RH (non-condensing) Pressure range ..................................90 - 110 kPa (nominal) Operating circuit............... see Electrochemical Toxic Sensor Application Note Applied potential ..............................................................0 V Storage life........... 6 months in original packaging (0 - 25 °C) PHYSICAL CHARACTERISTICS Label colour ...................................................................silver Weight.................................................................. 5 g approx. Dimensions ...........................................................see outline This device is designed to be RoHS compliant. CROSS-SENSITIVITY DATA GAS Concentration (ppm) Sensor Response (As ppm H2S) Carbon Monoxide 300 <1.5 Sulfur Dioxide 5 <1 Nitric Oxide 35 <0.7 Nitrogen Dioxide 5 <-1 Hydrogen 100 0Important Note Do not solder to the connector pins as this may damage the sensor and thereby invalidate the warranty. Details on recommended connector pins can be found in the Frequently Asked Questions within the Gas Sensor section of the SGX website. OUTLINE EC4-100-H2SHydrogen Sulfide Electrochemical SensorSGX Sensortech(IS) Ltd Registered in England No.08067077TEMPERATURE DEPENDENCE EC-4-100-H2S Graph of Zero vs Temperature-5-4-3-2-1012345-30 -20 -10 0 10 20 30 40 50 60Temperature/ Degrees CelsiusZero / ppm H2SAverage+95% conf-95% conf.EC-4-100-H2S Graph of Net Sensitivity vs Temperature020406080100120-30 -20 -10 0 10 20 30 40 50 60Temp/ Degrees Celsius% of Sensitivity at 20 Deg CAverage+95% conf-95% conf.A1A-764711 Version 2, October 2009 SGX Sensortech(IS) Ltd Registered in England No.08067077