STH Series test Chamber
Inquire productThe constant temperature and humidity chamber is also named as constant temperature and humidity tester, constant temperature and humidity experiment box,constant temperature machine or constant temperature and humidity box which can detect the heat-resisting,cold-resistant,drying resistant and wet resistance of the equipment under each environment.It is suitable for detecting the quality of electronic, appliance, communication,instrument, vehicle, plastic product, metal, food, chemicals, building materials, medical treatment, spaceflight product, etc.
Reference Standards
- GB11158 Specifications for High Temperature Test Chambers
- GB10589-89 Specifications for Low Temperature Test Chambers
- GB10592-89 Specifications for Low/High Temperature Test Chambers
- GB/T10586-89 Specifications for Thermal-humidity Test Chambers
- GB/T2423.1-2008 Test Methods for Low Temperature Test Chambers
- GB/T2423.2-2008 Test Methods for High Temperature Test Chambers
- GB/T2423.3-2006 Test Methods for Thermal-humidity Test Chambers
- GB/T2423.4-2008 Test Methods for Cyclic Damp Heat Tests
- GB/T2423.22-2002 Test Methods for Temperature Variations
- IEC60068-2-1.1990 Test Methods for Low Temperature Test Chambers
- IEC60068-2-2.1974 Test Methods for High Temperature Test Chambers
- GJB150.3 High Temperature Tests
- GJB150.4 Low Temperature Tests
- GJB150.9 Damp Heat Tests
- Technical specifications
-
Model
STH150- 20
STH225- 20
STH408- 20
STH1000- 20
STH150- 40
STH225- 40
STH408 -40
STH1000- 40
STH150- 70
STH225- 70
STH408- 70
STH1000- 70
Volume
150
225
408
1000
150
225
408
1000
150
225
408
1000
(mm)Internal size
W
500
500
600
1000
500
500
600
1000
500
500
600
1000
H
600
750
850
1000
600
750
850
1000
600
750
850
1000
D
500
600
800
1000
500
600
800
1000
500
600
800
1000
(mm)External size(excluding projecting portion)
W
910
910
1010
1410
910
910
1010
1410
910
910
1010
1410
H
1580
1730
1830
1980
1580
1730
1830
1980
1580
1730
1830
1980
D
1073
1173
1373
1588
1073
1173
1373
1588
1073
1173
1373
1588
Temperature range
-20℃～+150℃(Optional 180 ℃)
-40℃～+150℃(Optional 180 ℃)
-70℃～+150℃(Optional 180 ℃)
Humidity range
20%RH~98%RH/(20~85℃)
Temperaure fluctuation
±0.5℃
Temperature dviation
±1.5℃
Humidity deviation
± 3.0% RH (≥ 75%); ± 5.0% RH (≥ 75%)
Warm-up time
20℃~+150℃
20℃~+150℃
20℃~+150℃
≦50MIN
≦50MIN
≦50MIN
Cooling time
+20℃~-20℃
+20℃~-40℃
+20℃~-70℃
≦45MIN
≦70MIN
≦90MIN
Temperature and humidity regulating mode
Balance temperature regulating(humidity regulating)mode
Temperature of using environment
+5℃~+35℃
Material
Shell
Double-side electrolysis plank and spraying plastics
Inner shell
Stainless steel plate SUS304/2B
Thermal insulation
Polyurethane foam+fiberboard
Regulator
Heater
Nicochrome fin heating tube
Humidifier
Stainless steel armored heater(humidifying the water pond)
Fan
Centrifugal fan
Refrigerating fluid
Mechanical compressor
Refrigerating fluid
R404a
R404a /R23
Refrigerating mode
Mechanical compression refrigeration (air cooling or water cooling)
Mechanical binary cascade refrigeration(air cooling or water cooling)
Controller
Display
7.0 inch, TFT color LCD display
Operation mode
Program operation, fixed value operation
Setting mode
Chinese menu, input by touch screen
Program capacity
Number of editable program: 99 maximum; step: 999 steps; cycle number: 99 maximum
Setting mode
Temperature: adjust according to the temperature range of the equipment; humidity: 0%RH-100%RH(such as humidity function of equipment)
Display resolution
Temperature: 0.01℃; time: 0.1min; humidity; 0.1%RH(temperature and humidity test equipment)
Input
Thermal resistance and thermonuclear
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 special for PC computer(applicable for simple and complex Chinese, English WINDOWS operation system); the test program is compiled by PC 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 controller can be saved in U-disk; and then it is saved in Pccomputer to be andlyzed and managed. The record data of the test curve recorded in the controller can be saved to U-disk; the test data/curve is directly displayed and printed by special software of PC computer; and the data is converted into format file. The recording data of the controller is as follows; two-circuit temperature-setting temperature and actually measured temperature; two-circuit humidity-setting humidity and actually measured humidity.
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 mode
Supply water by water pump
Water storage tank
Handheld auxiliary water tank
Water quality
Resistance rate≤500Ωm
Power
AC380V±10%V 50HZ
Maximum current(A)
12
12
12
22
14
14
18
25
20
20
22
38
Installed capacity(KW)
6
6
6
44
7
7
7
12
10
10
10
18
Weight(KG)
460
460
530
810
460
460
530
810
540
540
600
980
Standard configuration
One observation window(transparent electrothermal film center control glass), one Ф50mm of cable hole in the right and left; two sets of sample racks, floodlight, time accumulator(internal), four foot wheels, one power cable(3m long), one RS-485/232 interface, one control terminal of test power, one USB interface and one U-disk.
Safety device
Residual-current circuit breaker, dry burning protector(for damp and heat only), water system protection device(for damp and heat only), overhead protection of fan motor, fuse, overload shor circuit protector of control loop, temperature limiting protector, under-voltage protector of cooling water(for water cooling type only), over-pressure, over-current and overheat protection for compressor, phase sequence protection and over-current protection of condensate fan(for air cooling).