Environmental test chamber
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（China）YYS-250 Constant Temperature&Humidity Chamber(-40℃)
I.Summary: Instruments Name Programmable constant temperature & humidity test chamber Model No: YYS-250 Internal studio dimensions(W*H*D) 460*720*720mm Overall dimension(W*H*D) 1100*1900*1300mm Instruments structure Single-chamber vertical Technical parameter Temperature range -40℃～+150℃ Single stage refrigeration Temperature fluctuation ≤±0.5℃ Temperature uniformity ≤2℃ Cooling rate 0.7～1℃/min（average） Heating rate 3～5℃/min（average） Humidity range 20%-98...