Accuracy: 1) temperature ± 0.3°C；2) humidity ± 2.5% RH
Uniformity: 1) temperature ± 2.0°C；2) humidity ± 3.0% RH
Uniformity test: measured at T=85°C, RH=85%; set 9 points for temperature measurement and 2 points for humidity.
Inner wall is above 50 cm; within 20 min after temperature/humidity meets the setting value, the distribution uniformity of temperature/humidity can meet the aforesaid requirement.
Temperature descending speed (idle run): no less than 3°C/min. Temperature ascending speed (idle run): no less than 3°C/min.
Sample load 400kg: temperature rise – no less than 2.0°C /min; in the range of -40°C ~ +85°C.
Temperature down－no less than 2.0°C/min; in the range of -40°C ~ +85°C.
Humidity: follow IEC 61646-10.12 to make wet refrigeration test; if temperature rises up for 100°C per minute, when 85°C is reached, wait for 10 min. and humidity shall reach 85%RH ± 5%RH.
Dew point temperature range: 10°C to +85°C
Test space: 200 x 250 x 280 (W x H x D) cm double door, outer chamber size: 220 x 290 x 430 (W x H x D) cm
Accept customized order.
Inner/outer wall materials: apply SUS#304 plate.
Insulation material: imported high-strength PU foamed insulation material.
Condensate-proof parts: use K-type tube’s heating energy and membrane-type electrical heatig wire to prevent condensate.
Control System: apply OYO U8256; the RS232 interface can connect to PC and perform setting of temperature curveand temperature recording during test run. The touch-type T.F.T. LCD digital PLC or equivalent can perform 1200-point mode.
Refrigeration system: use imported power-saving closed-type compressor.
Heating System: apply SUS304 fin-type heating tube to heat up. The temperature up/down and humidity up/down system are completely independent.
Protection devices: use fuse-free protection switch; equipped with pressure and explosion protection devices.
Airflow circulating system: apply multi-blade fan, sealed-type motor, vertical proliferation, horizontal air-exchange and curved air circulation.