Electrical Characteristics 36 Power supply Epson AC adapter Operating voltage 24 V ± 10% Current Operating consumption Standby Mean: Approximately 1.0A Mean: Approximately 0.2A Environmental Conditions Temperature/ Operating humidity Storage (Factory packing) Maximum absolute rated temperature 10 ~ 40°C {50 ~ 104°F}, 20 ~ 80% RH without condensation (See the operating temperature and humidity range below.) -20 ~ 60°C {-4 ~ 140°F}, 5 ~ 85% RH without condensation (120 hours or less at -20 {-4°F} or 60°C {140°F}) 70°C {158°F} (This temperature must never be exceeded during operation or storage.) [%RH] 80 55 (%) Humidity 20 10 27 35 40 Temperature (° C )