Figure 1 O2-A3 Schematic Diagram > All dimensions in millimetres ( 0.1mm) Top ViewBottom ViewSide View Table 1 O2-A3 Specification PERFORMANCE OutputѵA @ 22C, 20.9% O > 2 65 to 82Response timet90 (s) from 20.9% to 0% O > 2 (47 ТĦ load resistor)< 15Zero currentA @ 99.999% N > 2 , 22հC< 3Pressure sensitivity > (% change of output)/(% change of pressure) @ 20kPa < 0.1 LIFETIME Output drift% change in output @ 3 months< 2Operating lifemonths until 85% original output in 20.9% O > 2 > 36 ENVIRONMENTAL Humidity sensitivity% O > 2 change: 0% to 95% rh @ 40C< 0.7CO > 2 sensitivity% change in output / % CO > 2 @ 5% CO > 2 + 0.1Output at -20аC% output/output at 20C in 20.9% O > 2 87 to 93Output at +50аC% output/output at 20C in 20.9% O > 2 103 to 107 KEY Temperature rangeаC-30 to 55 SPECIFICATIONS Pressure rangekPa80 to 120Humidity range% rh continuous (0 to 99% rh short term)5 to 95Storage periodmonths @ 3 to 20C (store in sealed container)6Load resistor > (recommended)47 to 100Weightg<16.5 > NOTE: all sensors are tested at ambient environmental conditions, with 47 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. TTTTTececececechnical Specifhnical Specifhnical Specifhnical Specifhnical Specificaicaicaicaicationtiontiontiontion 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: [email protected] Website: www.alphasense.com size="-3">

Figure 2 TemperaturePerformance Figure 3 Pressure StepPerformance Figure 2 shows the variationof output caused by changes in temperature in 20.9% oxygen.All capillary oxygen sensorsshow a change in signal with temperature, and the very repeatable 95% confidence intervals for the O2-A3 are shown. Figure 4: shows how the Familyof Alphasense oxygen sensors respond to a 10kPa pressure step.Sensors with lower outputsand longer lifetime show greater output transients, but are predictable and repeatable. > o C Figure 3 shows how a 25 kPapressure step change causes a signal transient that decays reproducibly....