14 ENVIRONMENTAL CONDITIONS14.1 AMBIENT TEMPERATURE RANGECompliance IEC 60255-27: 2005Test Method IEC 60068-2-1:2007 and IEC 60068-2-2 2007Operating temperature range -25°C to +55°C (continuous)Storage and transit temperature range -25°C to +70°C (continuous)14.2 TEMPERATURE ENDURANCE TESTTemperature Endurance TestTest Method IEC 60068-2-1: 2007 and 60068-2-2: 2007Operating temperature range -40°C (96 hours)+70°C (96 hours)Storage and transit temperature range -40°C (96 hours)+85°C (96 hours)14.3 AMBIENT HUMIDITY RANGECompliance IEC 60068-2-78: 2001 and IEC 60068-2-30: 2005Durability 56 days at 93% relative humidity and +40°CDamp heat cyclic six (12 + 12) hour cycles, 93% RH, +25 to +55°C14.4 CORROSIVE ENVIRONMENTSCompliance IEC 60068-2-42: 2003, IEC 60068-2-43: 2003Industrial corrosive environment/poor environmentalcontrol, Sulphur Dioxide21 days exposure to elevated concentrations (25ppm) of SO2 at75% relative humidity and +25°CIndustrial corrosive environment/poor environmentalcontrol, Hydrogen Sulphide21 days exposure to elevated concentrations (10ppm) of H2S at75% relative humidity and +25°CSalt mist IEC 60068-2-52: 1996 KB severity 3P14D Chapter 22 - Technical SpecificationsP14D-TM-EN-8 493
