C:ENVIRONMENT TEST
3/7
No.
1
Item
Test condition
Evaluation standard
High temp. test
After being placed in a chamber at +85℃ for 96
hours.
Low temp. test
Thermal shock
After being placed in a chamber at -30℃ for 96
hours.
2
3
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
The part shall be subjected to 10 cycles. One
cycle shall consist of;
+85℃
+20℃
+20℃
-30℃
30 min
15 min
15 min
30 min
compared with initial
one.
The part shall be subjected to 10 cycle and consist
of;
+70℃
a, b: 90~98%RH
Temp. / Humidity Cycle
4
c: 80~98%RH
a
b
+25℃
3hrs
3hrs
12±0.5hrs
c
24hrs
D: RELIABILITY TEST
No.
Item
Test condition
Evaluation standard
After the test the part shall
□ Applying rated voltage, rated frequency, square wave , meet specifications without
1/2 duty cycle：
any degradation in
appearance and performance
except SPL. after 4 hours at
+25℃,The SPL shall be in ±
10 dBA compared with
initial one.
Operating
life test
Ordinary temperature
The part shall be subjected to 96 hours at room
temperature.
1
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
SOBERTON [ SOBERTON INC. ]
