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Themal Shock Chamber with Humidity

Thermal shock cycle test and dew condensation cycle test can be conducted with this chamber only. Notebook PC, phones, auto electronics are exposed to sudden temperature changes because they are moved from outdoor to indoor and vise versa. It is necessary to conduct thermal shock cycle test with sudden change between high and low temperatures. Also dew condensation is a big issue. The dew condensation effects performances and functions of electronics equipment causing corrosion, migration and malfunctions. The dew condensation test is important for checking these conditions. By using newly developed thermal shock chamber with humidity, you can save space and cost because only one chamber is required.

Features
New type thermal shock chamber The high temperature chamber of standard thermal shock chamber is changed to high temperature and humidity chamber, making the dew condensation cycle test possible. Since two types of tests can be conducted with this chamber, you can save space and cost, labor for taking out and in specimens.
Thermal shock cycle test functions Lowest low temp. exposure temp. is -70°C （TSA-101S/TSA-201S -70°C） and highest high temp. exposure temp. is +150°C （TSA-101S/TSA-201S +200°C）. They conform to testing standard such as IEC 61747-5. *For details of testing standards, please contact us.
Equivalent functions to humidity cycle test chamber · Uniform dew condensation with excellent temperature uniformity · The dew drop from ceiling can be prevented by controlling temperature of test area wall. · Air velocity variable is installed on the high temperature and humidity chamber to control dew time and dew uniformity. · A defrost function is attached on the high temperature and humidity chamber. It is not necessary to interrupt the test for defrosting.

Construction

Main specifications

Model

HTSA-101D-W

HTSA-201D-W

Power supply

200V AC 3φ 3W 50/60Hz

System

2-zone and 3-zone with damper switching

Performance
*1

Test area*2

High temp. exposure temp. range

1.Thermal shock cycle test +70°C to +150°C
2.Dew condensation cycle test -10°C to +100°C

Low temp. exposure temp. range

-70°C to +10°C

Temperature fluctuation

± 1°C

Humidity fluctuation

± 5% rh

High temperature and humidity chamber （stand-alone performance）

Upper limit pre heat. temp

+150°C

Humidity range

40 to 95% rh（at dew condensation cycle test）

Temperature heat-up rate

Within 30 min. from -10°C to +100°C

Temperature pull-down rate

Within 60 min. from +20°C to -10°C

Low temperature chamber （stand-alone performance）

Lower limit pre-cool temperature

-75°C

Temperature heat-up rate

Within 30 min. from -75°C to +10°C

Temperature pull-down rate

Within 60 min. from ambient temp. to -75°C

Temperature recovery performance
*3

Thermal shock cycle test

Recovery conditions

3-zone

Low temp. exposure:
-65°C （30 min.）
Ambient temp. exposure:
Ambient temperature （10 min. ）
High temp. exposure:
+150°C （30 min.）

Power supply : specified power supply
Sensor position: Upstream of specimen

Specimen: Plastic mold IC 5kg

Specimen: Plastic mold IC 10kg

Recovery time

High temp. recovery: within 10 min.
（ambient temp. to
+150°C）,
Low temp. recovery: within 10 min.
（ambient temp. to -65°C）

High temp. recovery: within 16 min.
（ambient temp. to
+150°C）,
Low temp. recovery: within 16 min.
（ambient temp. to -65°C）

Dew condensation cycle test1

Recovery conditions

2-zone

Low temp. exposure:
+5°C （20 min.）
High temp. and humidity exposure:
+25°C 90% （20 min.）

Power supply : specified power supply
Sensor position: Upstream of specimen

Specimen: PCB 2kg

Specimen: PCB 5kg

Recovery time*4

High temp. recovery: within 20 sec,
（+5°C→ +25°C 90%）
Low temp. recovery: within 3 min.
（+25°C 90% rh → +5°C）

High temp. recovery: within 20 sec,
（+5°C→ +25°C 90%）
Low temp. recovery: within 5 min.
（+25°C 90% rh → +5°C）

Dew condensation cycle test2

Recovery conditions*5

2-zone

Low temp. exposure:
-30°C（60 min.）
High temp. and humidity exposure:
+25°C 95%（60 min.）
*Preheat temp.25°C 95%

Power supply : specified power supply
Sensor position: Upstream of specimen
Specimen: none

Recovery time*4

High temp. and humidity recovery:
within 5 min.（-30°C→ +25°C 95%）
Low temp. and humidity recovery:
within 5 min.
（+25°C 95% rh → -30°C）

Specimen basket withstand load

5kg（Evenly distributed load）

Test area dimensions

W650 × H460 × D370mm

W650 × H460 × D670mm

Chamber outer dimensions

W1670 × H1900 × D1570mm
（excluding protrusions）

W1670 × H1900 × D1870mm
（excluding protrusions）

Chamber weight

About 1300 kg

About 1550 kg

*1.At ambient temperature of 23 °C
*2.The operating performance of dew condensation cycle test needs requirements. Please contact us for details.
*3.At ambient temperature of +23°C and cooling water temperature of +25°C.
*4.Performance at temperature only
*5.Defrost by cycle defrosting is required in every 12 cycles.
*The model name may be changed.

http://www.hongzhan.com.hk

info@hongzhan.com.hk