Walk-in Temperature (& Humidity) Test Chamber

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The equipment is suitable for applicability test of electronic product,car element,part and materials under high and low Temperature when being stored, transported and used.

Reference Standards

  • GB/T2423.1-2008 Test A:Low Temperature Test Method
  • GB/T2423.2-2008 Test A: High Temperature Test Method
  • GB/T2423.3-1993 Test Ca:Constant Temperature Test Method
  • GB/T2423.3-1993 Test Ca:Constant Temperature Test Method
  • GB10589 Specifications for Low Temperature Test Chambers
  • GB10589 Specifications for Damp Heat Testing Chambers
  • GB10589 Specifications for Damp Heat Testing Chambers
  • GJB150.3-1986 High Temperature Test
  • GJB150.4-1986 Low Temperature Test
  • GJB150.9-1986 Damp and Heat Test
  • GJB899-90 Evaluation and Acceptance Test
  • GJB1032-90 Environmental Stress Screening Process for Electronic Products

Technical specifications
Model
WTH40
WTH60
WTH80
WTH120
WTH160
WTH180
WTH230
WTH290
WTH310
WTH390
WTH470
Nominal volume(m³ )
3.9/3.4
6.3/5.5
7.8/6.8
11.7/10.2
15.6/13.6
17.5/15.3
23.3/20.4
29.2/25.5
31.1/27.2
38.9/34.0
46.7/40.8
Temperature range
-60℃ -100℃ (optional-70℃ -120℃ /-70℃ -150℃)
Humidity range
20% RH~98% RH/(20~85℃)
Temperature fluctuation
± 0.5℃
Temperature deviation
± 2℃
Humidity deviation
± 3.0%RH(≧ 75% RH); ± 5.0%RH(≦ 75% RH)
Warm-up time
25℃~+100℃(optional 120℃, 150℃)
≦ 25MIN
≦ 28MIN
≦ 28MIN
≦ 30MIN
≦ 31MIN
≦ 32MIN
≦ 34MIN
≦ 36MIN
≦ 38MIN
≦ 41MIN
≦ 45MIN
Cooling time
+25℃ rated limit low temperature, 30min~180min (it is different according to different models and configurations)
Internal size(mm)
W
1800
2700
3600
H
I: 2100     II: 2400
D
900
1450
1800
1800
1800
2700
3600
4500
3600
4500
5400
Temperature and humidity regulating mode
BT(H)C balance temperature regulation(humidity regulation)manner
Temperature of using environment
+5℃ ~ +35℃
Protection building envelope
Spraying plastics galvanizing color steel plate, temperature resistant stress thermal insulation material, SUS304 stainless steel composite assembly plate
Regulator
Heater
Nicochrome fin heating tube
Humidifier
Stainless steel armored heater(steam humidifying or external humidifying, the ultrasonic humidifier is installed according to the demands)
Fan
Centrifugal fan
Refrigerating fluid
Mechanical compressor
Refrigerating fluid
R404a or R404a /R23
Refrigerating mode
Minimum test temperature≥ -25℃: water cooling mechanical compression single refrigeration mode: minimum test temperature≦ -40℃, water cooling mechanical compression binary cascade refrigeration mode
Controller
Display
Above 7.0 inch, TFT color LCD display
Operation mode
Program operation, fixed value operation
Setting mode
Chinese menu, input by touch screen
Program capatity
Number of editable program: 99 maximum; step: 999 steps; cycle number: 99 maximum
Setting range
Temperature: adjust according to the temperature range of the equipment(upper limit+5℃;
Lower limit: -5℃; lower limit: -5℃); humidity: 0%RH-100%RH(humidity and temperaure test equipment)
Display resolution
Temperature: 0.01℃; time: 0.1min; humidity; 0.1%RH(temperature and humidity test equipment)
Input
Thermal resistance and thermocouple
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 800M
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-seting temperature and actual temperature; two-circuit humidity-setting humidity and actual humidity(if the equipment has humidity function); record the time.
Auxiliary function
Fault alarm and reason, treatment prompt function, power failure protection function, and upper and lower temperature limit protection function; calendar timing function(automatic starting or automatic stopping); self-diagnostic function
Water supply
Humidity system
Equipped with muli-level filter reverse osmosis water purifier(users provide humidification water with resistance rate ≥ 500Ω m
Cooling circulating water
Water supply pressure: 0.32~0.45MPa water temperature: ≤ 30℃
Power
AC 380V(± 10%)V 50HZ three-phase four-wire+protection ground wire
Installed capacity
20KW~55KW(it is different according to different models and configurations)
Standard configuration
Observation window, wire hole, floodlight, time accumulator, one power wire(6m long), one sample power control terminal, one RS-485-232 interface, one USB 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(water cooling); humidifying 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.

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