2403-260-00089 Datasheet, PDF (15/18 Pages) Knowles Electronics – SPEAKER-1115-SC-NAUTILUS 180

2403 260 00089
6.5.2. Operating Tests
6.5.2.1. Cold Operation Test
Parameter
Cold Operation Test
(Ref. EN 60068-2-1)
Test Method and
Conditions
-20°C
rel. humidity not
controlled
signal acc. Chapter 5.2.
6.5.2.2. Dry Heat Operation Test
Parameter
Dry Heat Operation
(Ref. EN 60068-2-2)
Test Method and
Conditions
+70°C
rel. humidity not
controlled
signal acc. Chapter 5.2
6.5.3. Salt Mist Test
Parameter
Salt Mist
(Ref. IEC60068-2-52,
Kb / Severity 2
Test Method and
Conditions
The part must be
subjected to 2 hours
spray of 5% NaCl salt
mist, at 35°C then be
left at 40°C and 95%
RH for 22h.
Duration
72h
Duration
500h
Duration
3 cycles
Evaluation Standard
Measurements after 2 hours
recovery time.
All samples fully operable.
THD may be increased after
test. All other acoustical
parameters according
specification with tolerances
increased by 50 %.
Evaluation Standard
Measurements after 2 hours
recovery time.
All samples fully operable.
The allowable change in
sensitivity shall not be greater
than 3 dB. All other acoustical
parameters according
specification with tolerances
increased by 50 %.
Evaluation Standard
The samples shall be washed
after the test with distilled water
and dried at T< 50°C.
Component may have reduced
performance, but must still
function properly. The allowable
sensitivity difference shall not
be greater than ±3dB from
initial sensitivity.
Revision: C
Page 15 of 18
©2011 Knowles Electronics