High-Low Temp. Low Pressure Test Chamber

High-Low Temp. Low Pressure Test Chamber

Product overview：

Chamber structure: High and low temperature test chamber under low pressure is shaped by CNC machine tool. It is beautiful and generous, easy to operate.

The inside of the chamber is made of circular barrel, with air duct and heat exchanger inside, and the radiation layer and heat sink are installed to improve the low-pressure heat transfer.

Control system: Siemens PLC+ Siemens touch screen control system, wincc configuration software.

Refrigeration system: adopting imported-brand cascade refrigeration technology, which can realize the temperature range of - 75 ~ 200 degrees. The internal heat exchanger, plate heat sink and radiation layer use heat conduction oil as the cooling fluid.

Circulatory system: use the secondary circulation system, magnetic pump to transport circulating oil.

 Technology parameter：

Model	DQY-6075S	DQY-8075S	DQY-A075S
Chamber temp. range	-75℃～180℃	-75℃～180℃	-75℃～180℃
Object temp. range	-60℃～160℃	-60℃～160℃	-60℃～160℃
Chamber volume	Φ0.6×1m	Φ0.8×1m	Φ1×1.3m
Heating power	5kw	7.5kw	10kw
Temp. constancy	±0.5℃（Normal pressure, no load.）
Temp. uniformity	±2℃（Normal pressure, no load.）
Temp deviation	±3℃（Normal pressure, no load.）
Object Temp. Control	Depression can choose + / - 1 ℃ accuracy of temperature control on the surface of theobject Temp. Accuracy:±1℃
Heating rate	1.5～2.5℃/min
Cooling rate	1～2.5℃/min
Pressure range	Normal pressure～0.1kPa
Pressure deviation	Atmospheric pressure～40Kp：±1.8Kpa；40Kp～4Kpa：±4.5％；4Kp～0.1KPa：±0.1Kpa
Decompression time	≤45min（Atmospheric pressure～0.5kPa）
Controller	Siemens PLC controller, Siemens color LCD touch screen.
Precision range	Setting accuracy: 0.01K, indicating accuracy: 0.01K.
Temperature sensor	Platinum resistance PT100Ω/MV
Pressure sensor	Electronic pressure transmitter.
Heater	Fully independent system, stainless steel flange pipe heater.
Internal evaporator	Copper tube aluminum fins.
Plate heat sink	Aluminium
Circulation pump	Guanya Magnetic circulation pump
Secondary refrigerant	KDOC-80 Thermal conductive silicone oil
Compressor	Tecumseh	Dorin	Dorin
Condenser	Paris/shen's Tube heat exchanger.
Cooling type	Water-cooled
Cooling water 25 degrees	1500L/h 2bar	2200L/h 2bar	3000L/h 2bar
Circulation system	High temperature and low noise air conditioning motor. Multi-blade centrifugal wind turbine
Chamber material	High quality carbon steel plate. Phosphating electrostatic spraying process /SUS304 stainless steel fog face line texturing treatment.
Inner Material	SUS304
Heat preservation material	Polyurethane rigid foaming/ultra fine glass fiber cotton.
Door frame and heat insulation	Double layer high and low temperature aging silicone rubber door sealing strip.
Security and protection	Leakage, short circuit, over-temperature, motor overheat, overload, over-current protection have self-diagnosis function;Overload protection of freezer;High pressure pressure switch, cooling water lack of protection and other security functions.
Power 380V 50HZ	12KW MAX	16kw MAX	23KW MAX

Meet the demand:

Gb10590-89 low temperature/low pressure test chamber technical conditions;

Gb15091-89 high temperature/low pressure test chamber technical conditions;

GB11159-89 low pressure test box technical conditions;

GB/T2423.25-1992 low temperature/low pressure comprehensive test chamber;

GB/T2423.26-1992 high temperature/low pressure comprehensive test chamber;

GJB150.2-86 low temperature/low pressure (altitude) chamber;