Environmental high and low temperature test chamber series

Product Model

HWX-80A

HWX-100A

HWX-150A

HWX-225A

HWX-408A

HWX-800A

HWX-1000A

Workshop size
( DWH) (cm ) 

40×40×50 

40×50×50 

50×50×60 

50×60×75 

60×80×85 

80×100×100 

100×100×100 

weight 

180 

200 

250 

300 

550 

960 

1100 

performance 

Temperature and humidity control method 

Balanced temperature and humidity control mode PID intelligent adjustment 

Temperature range 

Maximum test temperature : +150℃ ; minimum test temperature -20/-40/-60/-70℃ / non-standard customization is available

Humidity range 

30% ～ 98% R·H 

Temperature uniformity 

±2℃ 

Temperature fluctuation 

±0.5℃ 

Humidity uniformity 

±3%R·H 

Heating rate 

≥2℃/min 

Cooling rate 

≥1 ～ 1.5℃/min 

Material

Inner box material 

SUS304 mirror stainless steel 

Housing Material 

SUS304 brushed stainless steel plate or rust-proof cold-rolled steel plate 

Insulation 

Polyurethane foam plastic composite assembly board 

Control System

Heater 

Nickel-chromium alloy electric heater 

humidifier 

Stainless steel armored humidifier 

Air intake system 

Centrifugal fans 

Refrigeration method 

Mechanical single-stage refrigeration 

Cooling method 

Air Cooling 

Refrigeration compressor 

Original imported fully enclosed compressor (Taikang, France) 

Refrigeration heat exchanger 

Finned heat exchanger, stainless steel brazed plate heat exchanger 

User Interface 

Imported single point controller 

Operation mode 

Constant operation 

Program memory capacity 

Can memorize the last set operating temperature and humidity values 

Resolution 

Temperature: 0.01℃ ; Humidity: 0.1%R·H 

enter 

PT100 or T- type thermocouple 

Communication function 

none 

Printing function 

Japan Yokogawa 6-point recorder (optional) 

Standard Configuration 

One observation window; one test hole (60mm); two layers of sample racks; one lighting lamp in the box; one water supply tank; one wet-bulb weather belt; four footrests.

Safety devices 

Over-temperature protection, dry burning protection (humidification system), water shortage protection, leakage protection, compressor overpressure, overload, overcurrent protection, fan overload protection, phase sequence protection.

Additional functions 

Upper and lower limit alarm, self-diagnosis, alarm display (fault cause), timing device (automatic shutdown)