Archimede 5000 series- FM Power Amplifiers
User’s manual – Page 28 of 65
that the equipment internal fans are low-pressure units and therefore an air extractor on the air exhaust duct in definitely
needed.
Air conditioning at 20
– 25 °C would obviously be the best solution. Thermal insulation and efficient ventilation with a
thermostat-controlled blower are generally the best solution.
Even moisture and/or dust, when excessively present in the air or in the room, may cause condensation build-up in the
equipment. If the system is periodically switched on and off, this can trigger destructive electric arcs and short circuits and thus
cause damage which is not covered by warranty.
7.3.c
Electrical conditions
According to model and/or to the installed options, this equipment can be powered by a single-phase or a three-phase line. The
power grid capacity should be configured and dimensioned to suitably meet (with a sufficient safety margin) the consumption
needs of the device.
Fluctuations of the power line and electric discharges due to weather or nearby industrial machinery may cause significant
trouble, especially in mountain areas and in locations close to industrial areas.
In many cases it is advisable, if not mandatory, to install a protector, an insulating transformer or possibly an electromechanical
AC power voltage regulator.
Since the total cost of the plant, inclusive of broadcasting equipment, antenna system and installation is rather high, a certain
percentage of the budget should be evaluated for buying and installing suitable protection and conditioning facilities as
described above. It has to be considered that such additional costs will be absorbed very quickly since the equipment will work
under ideal conditions, its useful life-span will increase and, above all, the incidence of accidental breakdown due to
environment or power line trouble will be reduced.
7.4
Connecting the equipment
7.4.a
Connecting the antenna
It’s very important to check that antenna, cables and connectors are suited for the rated output powers featured by the adopted
Archimede High Power model.
The antenna divider is also expected to have adequate power.
Choose cables suitable for the equipment rated output power and the output signal connector type.
The antenna will be earthed through a copper braid of suitable cross section to prevent lightning or static electricity from
reaching the equipment through the antenna cable.
7.4.b
Connecting the AC power line
Wire the power supply cable of the equipment to a suitable power supply source.
The power supply for the Archimede 3000 standard version is a single-phase 230V
AC.
As an option, this model can be supplied for a
three-phase with neutral wire 400V
AC
power supply.
Archimede 4000 and Archimede 5000 can be connected to a single-phase 230V
AC
, or to a three-phase 220V
AC
, or to a three-phase
with neutral wire 400V
AC
power line.
TO EARTH ARCHIMEDE 4000 OR ARCHIMEDE 5000 USE THE GROUND WIRE OF THE POWER SUPPLY CABLE.
REFER TO THE FOLLOWING PARAGRAPH 7.4.c FOR THE CORRECT AC POWER LINE CONNECTION OF ARCHIMEDE
4000 AND ARCHIMEDE 5000!
Before connecting the power supply cable, make sure that the equipment will be compatible with the power supply
source you are planning to use.
The power supplied by the AC power socket must comply with what stated in the paragraph 7.3.c.
Operation near the lower input voltage on high impedance lines must be avoided: if the power line voltage drops
below a certain limit at full load, the low line sense circuitry may trigger an oscillating turn-on/turn-off cycle, which is
very dangerous. In this case, it is advisable to use an external line stabilizer.
In order to ensure proper operation and comply with the safety regulations, an efficient connection to earth is
required. Never connect the earth to the power line neutral lead.
Use only the power supply cable supplied with the amplifier. In case of a cable extension, use cables with suitable
gauge.
Summary of Contents for ARCHIMEDE 5000 Series
Page 65: ...User s manual Page 65 of 65 ...
