High and low temperature low pressure test box

Temperature   range

-70℃~+150℃

Temperature   fluctuation degree / evenness

Volatility:   ± 0.5℃; uniformity: ± 2℃

ambient    temperature

﹤95%RH

Cooling   velocity

Memean   1℃ / min

Heating   rate

Memean   1℃ / min

Humidity   range

20%~98%RH

Humidity   volatility / evenness

Volatility:   ± 2.5℃; uniformity: ± 3℃

Pressure   range / precision

Range:   50.5KPa~101.5KPa; precision: ± 5%

Pressure   control method

Method   A: 1. Heat / cool to the set temperature; 2. Vacuum to low pressure; Method   B: 1. Vacuum to low pressure; 2. Heat / cool to the set temperature; Method   C: 1. Heat / cool to the set temperature and vacuum to low pressure

Cooling-down   method

hydrocooling

Heating   method

electrical

Compression   engine

German   blog a semi-closed refrigeration system