•
In any system, prevent hot exhaust air from re-circulating to the air inlet, otherwise the inlet air
temperature will increase, resulting in potential thermal runaway. This is a prime
consideration when designing common ducting systems for multiple amplifiers.
3.3.4
Commissioning the Installation
When commissioning the
across each amplifier should be
checked to assess the suitability of the cooli
ure measurements should be taken
as follows:
•
Under the worse case op
transmit state, no RF drive
applied (beam only) an
bilised (typically 2 hours after
transmit (XMIT) has bee
•
As close to the amplifi
(to reduce the effects of
inaccuracies caused by un
3.4
MAINS SUPPLY CONNECTION
notes at the start of this manual should be read before connecting the amplifier to the
240V ac without any user adjustments.
e
he connection of
installation, the temperature difference
ng system. Temperat
erating conditions with the amplifier in the
d after the amplifier has thermally sta
n selected).
er air inlet and exhaust as possible
even temperature distribution).
The safety
mains supply.
The amplifier can be operated from mains supplies of 200 to
Both the live and neutral connections on the amplifier are fully rated and isolated for maximum lin
voltage, full transient and noise immunity.
The amplifier is supplied with one mains cord and a connecting plug. A residual current circuit breaker
(RCCB) must be used, approved for any local wiring regulations and rated for the environmental and
operational conditions. A cord size of 3x2.5mm
2
(12 AUG) minimum must be used. T
the wiring cord to the amplifier connector must be made by a suitably qualified person. The pin
configuration is shown in figure 4.
3.4.1
It is important to ensure that the required voltage is available at the input connector of the amplifier
drop is less than 10Vrms.
Figure 4.
The plug connecting to the local mains distribution is the emergency disconnect device and must be
kept accessible at all times during operation of the amplifier.
It is recommended that the mains supply to the amplifier is fed via a double pole 30A RCCB.
Mains Supply Cable Connection
under conditions of maximum current demand (as stated on the
RATINGS LABEL
).
It is also important to ensure that for any supply selected, the mains supply no load to full load voltage
© e2v technologies (uk) limited 2010
DAS768892AA
Version
1,
page
13
