Benchtop Temperature Test Chamber Technical Specifications Model No. Internal Dimension (MM) External Dimension (MM) BTH-50 W400*H450*D280 W600*H850*D1250 Technical Parameters Temp. Range A: 0~150C B: -20~150C CC: -40~150C D: -60~150°C Humidity Range 20-98 %RH Temp. Fluctuation =≤ ±0.5°C Temp. Deviation ≤ ±2°C Temp. Uniformity ≤ ± 2°C Humidity Fluctuation ≤ ±2.5%RH Humidity Deviation ≤ ±2, -3%RH (≥ 75%RH); ≤ ±5%RH (≤ 75%RH) Standard Compliance 1.Manufacturing standard : GB/T10586-2006 Specifications for damp heat chambers GB/T10592-1989 Specification for low/high temperature test chambers 2.Inspection Standard : GB/T5170.2-1996 Inspection methods for basic parameters of environmental testing equipments for electric and electronic products. Temperature testing equipments; GB/T5170.5-1996 Inspection on methods for basic parameters of environmental testing equipments for electric and electronic products —-Damp heat testing equipments 3.Testing Standard Compliance : GB2423.1-2008 ( IEC68-2-1 ) Environmental testing - Part 2: Test methods - Tests A: Cold GB2423.2-2008 ( IEC68-2-2 ) Environmental testing for electric and electronic products Test methods - Tests B:Dry Heat GB2423.3-2006 ( IEC68-2-3 ) Environmental testing for electric and electronic products —- Part 2: Testing method test Cab: Damp heat Steady state GB2423.4-2008 ( IEC68-2-30 ) Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic ( 12h+12h cycle) GB2423.22-2008 ( IEC68-2-14 ) Environmental testing for electric and electronic products -Part 2:Test methods-Test N:Change of temperature GJB150.3A-2009 ( MIL-STD-810D ) High temperature test GJB150.4A-2009 ( MIL-STD-810D ) Low temperature test GJB150.9A-2009 ( MIL-STD-810D ) Damp heat test Features With high precision perfect external design, external with double sides cold rolled plate electrostatic powder coated material, internal with SUS#304 high temperature resistant stainless steel. Insulation material adopt fire resistant high strength PU polyurethane foaming thermal insulating material. More than 20% energy saving is achieved &thanks to the introducing of Japan & German advanced refrigerator control technology. Control system and control circuit components all in