ETA Constant Temperature and Humidity Test Chamber is used to test the performance of materials in various environments. It provides a simulated environment for testing the heat resistance, cold resistance, dry resistance and humidity resistance of materials. Suitable for electronics, electrical appliances, communications, instrumentation, vehicles, plastic products, metals, food, chemistry, building materials, medical, aerospace products, scientific research and other industries

1. 1 ETA Constant Temperature and Humidity Test Chamber Products Introduction | ETA
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ETA Constant Temperature and Humidity Test Chamber
Introduce：
ETA Constant Temperature and Humidity Test Chamber is used to test the performance of materials in various environments. It provides a
simulated environment for testing the heat resistance, cold resistance, dry resistance and humidity resistance of materials. Suitable for
electronics, electrical appliances, communications, instrumentation, vehicles, plastic products, metals, food, chemistry, building materials,
medical, aerospace products, scientific research and other industries.
To meet the test criteria:
IEC68-2-1 Test A: Cold Resistance (GB/T 2423.1-2001 Test A: Low Temperature Test Method)
IEC68-2-1 Test B: Dry Heat (GB/T 2423.2-2001 Test B: High Temperature Test Method)
IEC60068-2-78 Test CAB: Constant Hygrothermal Test (GB/T 2423.3-1993 Test Ca: Constant Hygrothermal Test)
IEC68-2-30 Test DB and Guidelines: Alternating Hygrothermal Test (GB/T 2423.4-1993 Test DB, CB: Alternating Hygrothermal Test)
High Temperature Test of GJB150.3-1986
GJB150.4-1986 Low Temperature Test
Features：
1, New appearance design, and the use of special handles, easy to operate, safe and reliable.
2,Windows: Large observation window, fluorescent lamp keeps the box bright, and use the embedded glass in the heating body to observe the
condition of the test box clearly at any time.
3,Humidification system: Pure water two-stage filtration system is used for humidification, which can avoid the influence of pipeline blockage
caused by long-term use and improve safety. Simple automatic water supply device: The water supply tank is placed at the lower part of the
right rear of the test box, which is convenient for supplementary water supply (capacity is about 20L).
4,Cooling system: Compressor circulating system adopts French brand, which can effectively remove lubricant between condensation tube and
capillary tube and adopt environmentally friendly coal chiller in the whole series.
5,Control mode: PLC automatically adjusts the working condition of the refrigerator according to the test conditions.
6,Controller: With multi-stage program editing and temperature and humidity can be fast (OUICK) or slope (SLOP) control.
7,System capacity: 150 groups of programs * 1500 segments can be logged in, and the programs can be freely linked to each other.
8,Cycle settings: 9999 *999 cycles can be executed, and 5 separate parts of the cycle can be cut out.
9,Time Signal: 3 sets of timing control output interfaces, 10 time control modes, easy to execute external drive components
10,Safety Inspection: 16 full-function system detection to ensure the safe operation of the machine. It can automatically display the failure time,
items and troubleshooting countermeasures.

2. 2 ETA Constant Temperature and Humidity Test Chamber Products Introduction | ETA
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Materials List：
No. Item Brand Original
1 Refrigeration compressor Tecumseh France
2 Liquid accumulator EMERSON U.S.A
3 Pressure relay DANFOSS Denmark
4 air-cooled condenser DANFOSS Denmark
5 Evaporative pressure regulating valve DANFOSS Denmark
6 Drying filter DANFOSS Denmark
7 Air switch Schneider France
8 Contactor Schneider France
9 Thermal relay Schneider France
10 Solid state relay CKC Taiwan
Specification:
Model ETA-C400 ETA-C500 ETA-C750
Inner Box Size (mm) W400 *H500 *D400 W500 *H600 *D500 W500 *H600 *D750
View Window Visibility Range (mm) W450 *H300 Number: 1
Lead Hole (mm) φ50
Humidity Range 20-98% RH (+20 ~85 ℃)
Humidity uniformity ±2%
Temperature Range -20/-40/-60/-70 ~150℃
Temperature Fluctuation ±0.5℃
Temperature Uniformity <±1℃ (No Load)
Heating rate
3~5 ℃ /min
-20-80 C < 40 minutes (load: no load)
Cooling rate
0.7~1.5 ℃ /min
+20-20 < 40 minutes (load: no load)
Relative humidity deviation ±3.0% RH (humidity > 75% RH)
Test box
Different box capacity, different requirements
of product testing, all stainless steel
materials, to ensure long working life.
Temperature control
With high quality hardware configuration
and mature software system, temperature
control is accurate and stable.
Control box
Stable electrical components, conform to
the standard layout, strong and weak
electric separation, easy maintenance.

3. 3 ETA Constant Temperature and Humidity Test Chamber Products Introduction | ETA
www.smt11.com
Full SMT Solution Provider
±5.0% RH (humidity < 75% RH)
Test standard
GB/T2423.1-2001,GB/T2423.2-2001,GB/T2423.3-1993,GJB150.3-1986,GJB150.4-1986,Apple 080 –
1656,Apple 080-1653,EIA 364-17B
Heater Nickel-Chromium Alloy Electric Heating Wire
Heater Control Mode PID+SSR
Cooling System Piston Compressor
Safety Protection
Leakage protection, water shortage protection, overtemperature protection, fast fuse, compressor
overvoltage protection
Power Supply AC:220±10%,50/60HZ,3Kw
Control Method PLC Control
Dimension(mm) W680 *H1375 *D1465 W1050 *H1680 *D1750 W1050 *H1680 *D1950
Weight Approx:750kg Approx:850kg Approx:950kg
* The data is obtained under ambient temperature of 25℃ and humidity of 60%
Thanks for choosing ETA.
ETA looks forward to win-win cooperation.