C:ENVIRONMENT TEST

3/7

No.

Item

Test condition

Evaluation standard

1

High temp. test

After being placed in a chamber at +80℃ for 96

hours.

2

Low temp. test

After being placed in a chamber at -40℃ for 96

hours.

3

Thermal shock

The part shall be subjected to 10 cycles. One

cycle shall consist of;

4

Temp. / Humidity Cycle

The part shall be subjected to 10 cycle and consist

of;

After the test the part

shall meet

specifications without

any degradation in

appearance and

performance except

SPL. after 4 hours at

+25℃, The SPL shall

be in ± 10 dBA

compared with initial

one.

D: RELIABILITY TEST

No.

Item

Test condition

Evaluation standard

1

Operating

life test

□ Applying rated voltage, rated frequency, square wave ,

1/2 duty cycle：

Ordinary temperature

The part shall be subjected to 96 hours at room

temperature.

After the test the part shall

meet specifications without

any degradation in

appearance and performance

except SPL. after 4 hours at

+25℃,The SPL shall be in ±

10 dBA compared with

initial one.

TEST CONDITION.

Standard Test Condition : a)Temperature: +5~+35℃ b)Humidity:45~85% c)Pressure: 860~1060mbar

Judgment Test Condition :a)Temperature:+25±2℃

b)Humidity:60~70% c)Pressure: 860~1060mbar

+70℃

+25℃

a

b

c

24hrs

3hrs

3hrs

12±0.5hrs

a, b: 90~98%RH

c: 80~98%RH

-40°C

+80°C

+20°C

30 min

15 min

30 min

+20°C

15 min