PULSE (serv.man6) - JBL Audio EMC - CB Certificate (repair manual). Page 100

 

 

- Page 4 of 9 - 

 

 

Report No.   241619 

 

 

2.9.2  

First section of Clause 2.9.2 amended as 
two sections:  
Where required by 2.9.1, 2.10.8.3, 2.10.10 
or 2.10.11, humidity conditioning is 
conducted for 120 h in a cabinet or room 
containing air with ambient temperature 
40±2℃ and a relative humidity of 
(93±3)%.During this conditioning the 
component or subassembly is not 
energized. 
For equipment not to be operated at 
tropical climatic conditions, Where required 
by 2.9.1, 2.10.8.3, 2.10.10 or 2.10.11, 
humidity conditioning is conducted for48 h 
in a cabinet or room containing air with a 
relative humidity of (93±3)%. 
Thetemperature of the air, at all places 
where samples can be located, is 
maintained within 2 °Cof any convenient 
value between 20 °C and 30 °C such that 
condensation does not occur. 
Due to pretreatment of equipment operated 
at highaltitude area is humidity conditioning 
withstand hot shock, specific requirements 
are to be considered.  
Add note:  For equipment to be operated at 
2000 m - 5000m above sea level, 
assessment and requirement of humidity 
conditioning for Insulation material 
properties are considered. 

Class III 

equipment

.

 N/A