Mains Operation & Resulting Temp - Electro-Voice P900RL Bedienungsanleitung

MAINS OPERATION & RESULTING TEMPERATURE
MAINS OPERATION
The following tables allow determining power supply and cabling requirements. The values of
the column „1/8 max. Output @ 4Ω" are relevant for "normal" operation. These values are based
on operating the power amplifier with VDE-noise at 1/8 of the maximum output power, which
approximately equates the load of the power amplifier being operated with a music signal at maximum
volume possible, without noticeable clipping.
RESULTING TEMPERATURE INSIDE THE POWER AMPLIFIER
The power drawn from the mains network is converted into acoustic output power to feed the
connected loudspeaker systems & heat. The difference between drawn power and dispensed power
is called leakage power or dissipation (Pd). The amount of heat resulting from power dissipation might
remain inside of a rack-shelf and needs to be diverted using appropriate measures. The following table
provides auxiliary means for calculating the temperatures inside of a rack-shelf system/cabinet and the
ventilation efforts necessary.
The column "Pd" lists the leakage power in relation to different operational states. The column "BTU/hr"
lists the dispensed heat amount per hour.
P1200RL
Idling
Max. Output @ 8Ω
Max. Output @ 4Ω
1⁄3 max. Output @ 4Ω
1⁄8 max. Output @ 4Ω
Normal Operation (-10dB) @ 4Ω
Nominal operation (0dB) @ 4Ω
Alarm Operation (-3dB) @ 4Ω
P900RL
Idling
Max. Output @ 8Ω
Max. Output @ 4Ω
1⁄3 max. Output @ 4Ω
1⁄8 max. Output @ 4Ω
Normal Operation (-10dB) @ 4Ω
Nenn Operation (0dB) @ 4Ω
Alarm Operation (-3dB) @ 4Ω
For approximation; when operating the appliance at 120V mains the stated current values need to be doubled.
(1) modulated with sine signal
(2) modulated with VDE-noise
(3) 1BTU = 1055.06J = 1055.06Ws
U [V] I
Mains
230V
(1)
230V
(1)
230V
(1)
230V
(2)
230V
(1)
230V
(1)
230V
(1)
230V
U [V] I
Mains
230V
(1)
230V
(1)
230V
(1)
230V
(2)
230V
(1)
230V
(1)
230V
(1)
230V
[A] P [W]
Mains Mains
0.55 85
6.40 1185
10.5 2030
6.60 1230
3.80 675
3.78 670
9.69 1870
7.27 1370
[A] P [W]
Mains Mains
0.45 70
4.97 920
8.16 1580
5.13 960
2.90 520
2.84 505
7.32 1410
5.48 1030
14
P [W] P [W]
out d
- 85
2 x 380 425
2 x 600 830
2 x 200 830
2 x 75 525
2 x 50 570
2 x 500 870
2 x 250 870
P [W] P [W]
out d
- 70
2 x 280 360
2 x 450 680
2 x 150 660
2 x 56.3 407.5
2 x 35 435
2 x 350 710
2 x 175 680
(3)
BTU/hr
290
1450
2832
2832
1791
1945
2969
2969
(3)
BTU/hr
239
1228
2320
2252
1390
1484
2423
2320