Shenzhen DZH industrial Co. Ltd C201 ユーザーズマニュアル
7
4、
、
、
、Environment Test
The product via the following environment test requirements.
4.1 Non-operating Low Temperature and Humidity Test
Test Conditions：At the temperature of -25℃~25℃, sample initially at 25 ℃ test environment
(humidity is about 25%).
1) Temperature gradually drop to -25℃, the time interval is 3 hours.
2) Under the condition of -25℃, the time interval is 10 hours.
3) Temperature gradually rises to 25℃, the time interval is 3 hours.
4) Remain under the conditions of 25 ℃, the time interval is 10 hours
5) Repeat step 1) ~ step 4), the time interval of 156 hours.
4.2 Non-operating High Temperature and High Humidity Test
Test conditions: At 40
℃ - 95% humidity (non-condensing) and climate change rate of about 20%
per hour in test environment
1) At the beginning, sample under low temperature of 25
℃ with lower humidity (about 20%)
environment.
2) Set the temperature gradually rose to 40
℃, time interval of 2 hours.
3) Humidity gradually rose to 95%, the interval is 3.5 hours.
4) Under 40
℃ and 95% humidity conditions, sample placed for 24 hours
5) Humidity gradually lowered (25% rate of change per hour), the time interval is 3.5 hours.
6) Gradually reducing the temperature to 25
℃, the time interval is 2 hours
7) Repeat the above steps to test the sample
4.3 Non-operation High / Low Temperature with Humidity Loop Test
The purpose of this test is used to detect the impact of temperature and humidity for plastic
covers and the printing on Keys, and then provide the right solution.
Test method: the samples placed in low humidity environment in turn the cooled-compartment
(-20
℃) and the heat-compartment (60℃) for 2 hours each, and repeat the cycle
lasts 48 hours test time.
1
） The samples were placed in the first compartment.
2
） The temperature of the second compartment were set to -20℃.
3
） After the cold-compartment temperature stability, the samples placed into for 2 hours.
4） Set the temperature of a compartment as a hot cabin (60
℃ )