Programmable constant temperature and humidity test chamber, also known as programmable constant temperature and humidity alternating test chamber, is used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and moisture resistance of various materials. It is suitable for scientific research, medical care, aerospace, colleges and universities and other quality inspection and research. 【Relevant Standards】

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【Scope of application】: Programmable constant temperature and humidity test chamber, also known as programmable constant temperature and humidity alternating test chamber, is used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and moisture resistance of various materials. It is suitable for scientific research, medical care, aerospace, colleges and universities and other quality inspection and research. 【Product Features】: All imported stainless steel shells, or anti-rust steel plates (sprayed plastic) have a beautiful and elegant appearance. The imported refrigeration unit, the key accessories are imported international brands, and the whole system is equipped with multiple protection devices to improve operational reliability. Clever air duct structure, small temperature and humidity deviation, high uniformity, and anti-condensation function. The door is equipped with a lighted observation window, which can facilitate the observation of the test sample test status. The system is simple to operate and easy to install and maintain. [Technical specifications]:

Name		Constant temperature and humidity test chamber (desktop type) YS-SDJ-VOLUME-ABCD (volume can also be customized according to requirements)
Internal volume (L) m³		23L	64L
Working room size (WxDxH) (m) width, depth and height		300*250*300mm	400*400*400mm
Overall dimensions (WxDxH) (m) width, depth and height		450*900*675mm (-40 degrees) -60 degrees depth 100mm more	550*1250*775mm (-40 degrees) -60 degrees depth 100mm more
Performance	Temperature and humidity adjustment method	Balanced Temperature and Humidity Control (BTHC) PID intelligent adjustment
	Product performance	Air-cooled type, the air-cooled room temperature of the machine is at room temperature 25°C when there is no load.
	Temperature range	A：-40℃~+150℃ B:-20℃~+150℃ C:-60℃~+150℃  D:-70℃~+150℃
	Humidity range	20%~98%R.H（10%~98%R.H，5%~98%R.H； Customized for special conditions)
	Temperature distribution uniformity	≤±2℃
	Temperature/humidity control fluctuations	±0.5℃/≤±3%R.H
	Temperature/humidity deviation	≤±2℃ / 75%R.H <±5%R.H , 75%R.H ≥±3%R.H，
	Rate of warming	about 2°C/min; No-load (temperature rate 2~25°C/min linear/nonlinear, customized for special conditions)
	Cooling rate	about 0.7~1.7°C/min; No-load (temperature rate 2~25°C/min linear/nonlinear, customized for special conditions)
Inner/outer shell material		SUS304 stainless steel / warehouse plate or anti-rust treatment cold-rolled steel plate sprayed or SUS304 brushed stainless steel
Refrigeration method		Fully enclosed double-stage compressor (air-cooled) / BITZER compressor or GEA blog compressor (water-cooled)
Control system/resolution		Taitong TATO/South Korea TECH ternary/0.01°C/0.1%R.H
Ambient temperature/humidity		Air cooling: +5°C~+26°C, water cooling 5°C~+35°C/≤85%RH
Power supply		220VAC±10% 50/60Hz/380VAC±10% 50/60Hz