Harman Kardon AVR 235 EMC - CB Certificate ▷ View online
- Page 3 of 7 -
Order No. 34137
5
MARKING AND INSTRUCTIONS
P
Copy of the markings (continued) :
Comprehensible and easily
discernible
discernible
On front and rear side of the enclosure
P
Permanent durability against water
and petroleum spirit
and petroleum spirit
Tested with water / spirit
P
5.1
Identification, maker, model
P
Class II symbol
N
Rated supply voltage and symbol
AC-symbol (
~
) and
230V
P
Rated mains frequency
50Hz
P
Rated current or power
consumption
consumption
350W
P
- Page 4 of 7 -
Order No. 34137
HEATING
∆
t = ( R2 - R1) x (234,5 + t1) - (t2 - t1)
R1
P
t1 =
24,5 °C
24,5 °C
t2 =
24,9 °C
23,5 °C
Test voltage
207 V
254,4 V
Winding
R1/
Ω
R2/
Ω
∆
t measured
∆
t allowed *)
Insulation
class
class
Main transf. pr. winding (207V)
1,807
2,288
68,5
85
Class E
Sub transf. pr. winding (207V)
2747
3235
45,6
85
Class E
Main transf. pr. winding (254,4V)
1,807
2,305
72,4
85
Class E
Sub transf. pr. winding (254,4V)
2747
3347
57,6
85
Class E
Other measured parts
∆
t measured
at 207V
∆
t measured
at 254,4V
∆
t allowed *)
Main transformer core
53,6
57,5
85
Sub transformer core
37,4
45,0
85
Diode, D991 body
61,5
63,9
-
PWB near D991
61,9
63,0
85
TR, Q803 body
50,5
59,5
-
TR, Q804 body
32,5
38,9
-
PWB near Q804
48,1
56,0
85
E. Capacitor, C909 body
33,4
36,8
-
E. Capacitor, C916 body
25,9
29,0
-
Resistor, R810 body
44,2
50,3
-
Main
heat-sink
49,2 59,3 -
Fan body (on heat-sink)
31,8
38,3
60
Power cord bushing
26,6
28,6
60
Top enclosure above main transformer
30,3
35,0
65 **)
Top enclosure above main heat-sink
27,8
33,5
65 **)
Comments
No other parts were observed to create any hazard due to temperature rise.
P
*) Temperature rise limits for Singapore is 10K less.
**) Directly covering part for heat-sink and transformer. The top cover is supplied with
ventilation openings covering most of the top cover. This indicate emission of heat from
internal parts and the opening area is therefore not likely to be touched during normal
use. Based on this the temp. rise is accepted also for Singapore.
ventilation openings covering most of the top cover. This indicate emission of heat from
internal parts and the opening area is therefore not likely to be touched during normal
use. Based on this the temp. rise is accepted also for Singapore.
- Page 5 of 7 -
Order No. 34137
FAULT CONDITION TESTS
P
Ambient temperature
24 - 26 °C
Rated voltage
230V~ 50Hz
Remarks
-
Comp.
No
No
Fault Test
V
Short
current
current
Test
time
time
Fuse No
Current
through
fuse
through
fuse
Mains power/temperatures/results
Fan
(Main
heat-sink
installed)
heat-sink
installed)
Locked
254,4
-
6 hr
F907
1,79 A
Normal operated.
The components are heated up to:
- Main transf. pr. winding : 74K
- Main transformer core : 58K
- Sub transf. pr. winding : 58K
- Sub transformer core
The components are heated up to:
- Main transf. pr. winding : 74K
- Main transformer core : 58K
- Sub transf. pr. winding : 58K
- Sub transformer core
: 48K
- D991 body
: 58K
- PWB near D991
: 62K
- Q803 body
: 58K
- PWB near Q804
: 56K
- Main Heat-sink
: 65K
and stabilised.
Dielectric strength test OK.
No hazard.
Dielectric strength test OK.
No hazard.
Top cover
opening
opening
Blocked
254,4
-
20 min.
F907
1,79 A
The components are heated up to:
- Main transf. pr. winding : 69K
- Main transformer core : 57K
- Sub transf. pr. winding : 56K
- Sub transformer core
- Main transf. pr. winding : 69K
- Main transformer core : 57K
- Sub transf. pr. winding : 56K
- Sub transformer core
: 51K
- D991 body
: 70K
- PWB near D991
: 73K
- Q803 body
: 75K
- PWB near Q804
: 76K
- Main Heat-sink
: 77K
and Unit shut down after 13 min.
Input current stabilised at 0,013A.
Dielectric strength test OK.
No hazard.
Input current stabilised at 0,013A.
Dielectric strength test OK.
No hazard.
F No = Fault Number, S-c = Short-circuit, Dis = Disconnection
- Page 6 of 7 -
Order No. 34137
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