SQW series Test Chamber

Inquire product
  • It is used for testing the material structure or compound material;
  • it can bear under high temperature and low temperature continuous environment;
  • the chemical change or physical injury caused by the test during the shortest time can be tested;
  • the applicable object comprises metal, plastics, rubber, electronics,etc;
    and it can be used as the basis or reference of product improvement.

Reference Standards

  • GB/T5170.2-2008 Temperature Testing Equipment
  • GB/T517052-2008 Humidity Test Equiment
  • GB/T2423.1-2008(IEC68-2-1)Test A:Low Temperature Testing Method(a)
  • GB/T2423.2-2008(IEC68-2-2)Test A:High Temperature Testing Method(b)
  • GB/T2423.3-2006(IEC68-2-3)Test Ca:Steady-state Damp Heat Test(c)
  • GB/T2423.4-2006(IEC68-2-30)Test Dbc:Cyclic Damp Heat Test(c)
  • GJB150.3A-2009(MIL-STD-810F-2000)High Temperature Test
  • GJB150.4A-2009(MIL-STD-810F-2000)Low Temperature Test
  • GJB150.9A-2009(MIL-STD-810F-2000)Damp Heat Test
  • IEC60068-2-1.1990 Test Methods for Low Temperature Test Chambers
  • IEC60068-2-2.1974 Test Methods for High Teperature Test Chambers
  • GJB 150.3 High Temperature Tests
  • GJB150.4 Low Temperature Tests
  • GJB150.9  Damp Heat Tests 
Technical specifications
SQW262L5/SQW262L10 /SQW262L15
SQW420L5/SQW420L10 /SQW420L15
SQW1000L5/SQW1000L10 /SQW1000L15
SQW2400L5/SQW2400L10 /SQW2400L15
(mm) Internal size
Temperature range
Humidity range
Temperaure fluctuation
Temperature dviation
Humidity deviation
±3.0%RH(≧ 75%); ±5.0%RH(≦ 75%)
Temperature chanqe rate
5/10/15℃ min(Linear / nonlinear)
Range of temperature change rate
-55℃ ~+85℃ /-40℃ ~+85℃
Double-side electrolysis steel plate SECC and surface spraying plastics
Inner shell
SUS304/2B(fog surface)stainless steel plate
Thermal insulation
Hard polyurethane foam+ultra-fine glass fiber
Nicochrome fin heating wire heater
Stainless steel armored heater(external humidifying)
Rear fan
Refrigerating fluid
Mechanical compressor
Refrigerating fluid
R404a /R23
Refrigerating mode
Mechanical binary cascade refrigeration mode
Above 7.0 inch, TFT color LCD display
Operation mode
Program operation, fixed value operation
Setting mode
Chinese menu, input by touch screen
Progarm capacity
Number of editable program: 99 maximum;  step: 999 steps; cycle number: 99maximum
Setting mode
Temperature: adjust according to the temperature range of the equipment(upper limit: +5℃ ; lower limit: -5℃ ); humidity: 0%RH-100%RH
(humidity and temperature test equipment)
Display resolution
Temperature: 0.01℃ ; time: 0.1min; humidiy; 0.1%RH(temperature and humidity test equipment)
Thermal resistance
Communication function(purchasing)
RS-485 interface with local and remote communication function, monitoring software, RS-485/RS-232 convertor, one COM interface and one
USB interface occupying PC computer; connect 16 sets of equipment at most; and the maximum accumulated length of the cable is BOOM.
Control mode
Anti-integration saturation PID
Curve recording function
RAM with battery protection: it can save the setting value, sampling value and sampling time of equipment; and the maximum recording
Time is 350 days(when the sampling period is 1.5min)
USB function
It is equipped with one U-disk and software disk special for PC computer(applicable for complex Chinese, English WINDOWS operation system); the test program is compiled by PC special software and saved in U-disk; and then the test program is tuned out from the U-disk and saved in the controller; or the program in the controller is saved in U-disk and then it is saved in PC machine to be analyzed and managed.The test curve data saved in the controller can be saved in U-disk.The test data/curve is directly printed and displayed by PC special software; or the recorded data is converted to access data file read by Microsoft Office.The test curve data recorded by the recorder is as follows: two-circuit temperature-setting temperature and actual temperature; two-circuit humidity-setting humidity and actual humidity(if the equipment has humidit function); record the time.
Auxiliary function
Fault alarm and reason, treatment prompt function, power failure protection function function, and upper and lower temperature limit protection functon;
Calendar timing function(automatic starting or automatic stopping); self-diagnostic function.
water supply
Water supply mode
Lifting by water pump
Water storage tank
Drawer water tank(self-control)
Water quality
Resistance rate ≥500Ωm
AC380V±10%V   50HZ three-phase four-wire+protection ground wire
Standard configuration
One 360mm×440mm of electric heating anti-condensation hollow glass observation window; one left and right wire hole; two sample racks; floodlight; time accumulator(internal), one power cable(3m long), one sample control terminal, one RS-485/232 interface, one USB interface and one U-disk.
Safety device
Refrigerating system: over-voltage of compressor, over-heating of compressor, over-current of compressor motor, water supply and under-voltage of cooling water  supply and  under-voltage of cooling water(water cooling)
Humidfying system(SQW model): dry burning of heating tube, abnormal water supply and abnormal water drainage
Test chamber: over-temperature protection, temperature fuse wire, over-heating of fan and motor, others: phase sequence of total power and lacking protection,  leakage protection and load short circuit protection.