audioplan PowerPlant 100 Manual de Instruções - Página 5

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PowerPlant 1500 U / PowerStar

into the measuring adapter and switch it on. Set the meter to "V AC" and

connect one cable of the meter with GND (outer contact of an RCA-socket

or the enclosure) of the device. Use the other measuring cable to contact

an earth point, e.g. on the PowerStar or the earth contact of a wall-socket.

Unlock the two setting controls on the PP 1500 U by pushing the sliding

buttons on the right side of the control housings upwards. Now bring the

lower fine-adjustment knob to approximately the middle position. This

gives room for fine adjustment in both directions when the coarse ad-

justment is done. Now turn the coarse adjustment knob until the meter

shows the lowest possible voltage (typically between 2 V and 5 V). You

can be a little bit off the optimum, because there is still the fine adjust-

er! When the setting is close to the minimum voltage, lock the coarse

control by pushing the lock down. Now make the fine adjustment with

the lower control. Please note that the meter does never indicate „0 V".

There will be a small residual voltage of approx. 0.8 V to 20 V, which

cannot be compensated. After optimisation is complete, also lock the

fine controller to secure it against unintentional adjustment. Now switch

off the optimised unit, remove the measuring adapter and connect the

mains plug of the unit directly to the PP 1500 U with the same polarity. A

device with a 2-pole mains connection without earth is connected directly

to the PP 1500 U without a measuring adapter and can be adjusted as

described above. Measurements are taken from a GND point on the unit

to be adjusted to an earth point (earthed socket or PowerStar). Again, the

unit to be adjusted must be switched on and all signal lines disconnected

to achieve correct results. After adjustment is complete, switch off the unit

and re-establish the signal connections.

PowerStar

The PowerStar is used for the potential-optimised distribution of the

mains current in your system.

Preparation

Please make sure that the feet of the PowerStar S are in full contact

with the bottom of the unit. However if the feet are too tight the sound

becomes too bright and forward. Therefore, please tighten the feet only

slightly!

Connection

If you have ordered a PowerStar with an Audioplan mains cable, the phase

is indicated by a red lightning bolt on the mains plug of the cable. Please

plug it into the wall socket in such a way that the phase („hot" or „live"

pole of the mains socket, phase tester lights up) is at the red marking. The

output sockets of the PowerStar are marked accordingly with a red dot for

PowerStar / Ampère

the "live" contact. This way units tested for minimal ground potential can

be connected with the correct phase without further measurement. How to

measure minimal ground potential of your units is explained in the chapter

„Measuring the ground potential of the units". When connecting the devic-

es to the PowerStar, it is important that the central device of your system

is connected to the central socket of the PowerStar. In a hi-fi system, this

is the preamplifier or the integrated amplifier. In an AV system, the central

device is the AV-amplifier. The sockets in the outer circuit all are equal All

other devices of your system can be connected in any order. The important

thing is that all devices that are connected to the hi-fi system are also

centrally supplied with current by the PowerStar. In a complex system with

more than seven units, it is best to work with two PowerStars. In a Hifi-sys-

tem, the additional PowerStar is best used to power auxiliary equipment

and other source devices, while the main system with the most important

signal source is connected to the first PowerStar. In an AV system, it is best

to work with a second PowerStar for the video devices, which is plugged

into the outer circuit of the first PowerStar.

Additional grounding

If you would like to provide a unit with an additional ground, a wire can

be connected to the green-yellow binding post of the PowerStar. This

binding-post is connected to the central earth point of the PowerStar.

Ampère

The Ampère mains cable is supplied with a Schuko mains plug (or a

plug for your country) and an IEC C13 or C19 plug as standard. Other

connectors or variants for installation in units are available on request.

The Ampère mains cables are marked with a red lightning bolt on both

plugs in order to facilitate the "phase-correct" connection of the devices

connected to it. The lightning bolts indicate contacts of the two plugs

that are connected to each other. The cable itself has no preferred ori-

entation with respect to the "hot" and the "cold" pole, the construction

is symmetrical. The orientation of the lightning bolts is in accordance

with the IEC guidelines for the respective plug type. If you do not have

a technician or trained dealer, that can measure your equipment to

the instructions given below, it is best to estimate, that the unit is con-

nected according to the IEC-standard. That means, the lightning bolt

shall be connected to the "hot" or "live" contact of the supply-socket.

However, this does not make sure that the "mains phase" of the unit

is correct. Many manufacturers are not aware of the importance of the

mains phase or simply ignore the IEC recommendation. The correct

phase of the unit can be determined by measuring the ground potential

of the unit. If the correct phase position of the unit does not correspond