Meyer Sound Mina Compact ユーザーズマニュアル
CHAPTER 2: POWER REQUIREMENTS
16
V pk (drop) = I pk x R (cable total)
The Burst Current can also be used to calculate the AC
looping capability of MINA.
looping capability of MINA.
■
Ultimate Short-Term Peak Current — A rating for fast-
reacting magnetic breakers.
reacting magnetic breakers.
■
Inrush Current — The spike of initial current encoun-
tered when powering on.
tered when powering on.
You can use the following table as a guide for selecting
cable gauges and circuit breaker ratings for the system’s
operating voltage.
cable gauges and circuit breaker ratings for the system’s
operating voltage.
The minimum electrical service amperage required by a
MINA loudspeaker system is the sum of the Maximum Long-
Term Continuous Current for each loudspeaker. An addi-
tional 30 percent above the minimum amperage is recom-
mended to prevent peak voltage drops at the service entry.
MINA loudspeaker system is the sum of the Maximum Long-
Term Continuous Current for each loudspeaker. An addi-
tional 30 percent above the minimum amperage is recom-
mended to prevent peak voltage drops at the service entry.
NOTE:
For best performance, the AC cable
voltage drop should not exceed 10 V, or
10 percent at 115 V and 5 percent at 230 V. Make
sure that even with AC voltage drops that the AC
voltage always remains within the operating win-
dows.
sure that even with AC voltage drops that the AC
voltage always remains within the operating win-
dows.
ELECTRICAL SAFETY ISSUES
Pay close attention to these important electrical and safety
issues.
issues.
■
MINA requires a grounded outlet. Always use a
grounded outlet and plug.
grounded outlet and plug.
■
Do not use a ground-lifting adapter or cut the AC cable
ground pin.
ground pin.
■
Do not exceed the current capability of the 20-amp AC
Input connector for the loudspeaker. When looping loud-
speakers, consider the total current draw for all loud-
speakers on the circuit, including the first loudspeaker.
Input connector for the loudspeaker. When looping loud-
speakers, consider the total current draw for all loud-
speakers on the circuit, including the first loudspeaker.
■
Make sure the AC power cable for the loudspeaker has
the appropriate power plug (on the other end) for the
area in which you will operate the loudspeaker. In addi-
tion, the AC power cable must be rated for the total cur-
rent draw of all loudspeakers looped from the power
source.
the appropriate power plug (on the other end) for the
area in which you will operate the loudspeaker. In addi-
tion, the AC power cable must be rated for the total cur-
rent draw of all loudspeakers looped from the power
source.
■
Do not operate the unit if its power cable is frayed or bro-
ken.
ken.
■
Keep all liquids away from MINA to avoid hazards from
electrical shock.
electrical shock.
MINA Current Draw
Current Draw
115 V AC
230 V AC
100 V AC
Idle Current
0.256 A rms
0.249 A rms
0.284 A rms
Maximum Long-Term
Continuous Current
Continuous Current
1.26 A rms
0.66 A rms
1.50 A rms
Burst Current
3.24 A rms
1.74 A rms
4.02 A rms
Ultimate Short-Term
Peak Current
Peak Current
10.4 A peak
5.2 A peak
11.1 A peak
Inrush Current
16.8 A peak
20.0 A peak
15.0 A peak
Earth ground
Chassis ground