![AR 10012342 Скачать руководство пользователя страница 26](http://html1.mh-extra.com/html/ar/10012342/10012342_operating-and-service-manual_2962339026.webp)
Model 500T8G18
12
Rev B
3.2.4 Cooling
Requirements
The power supply/control module is provided with a single high-speed blower, and the supertube assembly
has two identical high-speed blowers. It is important that air movement around the rear of the units be
unobstructed.
CAUTION:
For either bench or rack mounting, do not position the TWTA in such a
way that the air intakes or outlets are blocked, or that exhaust flow is
directed into one of the intakes. See section 3.5 for location of air intake
and air outlet. If the unit is rack mounted, make sure that the intake air is
45°C or below. If necessary, fabricate a short duct to direct the hot
exhaust air from the TWTA cooling ducts out of the rack enclosure.
Single-phase units are provided with user installed air duct extensions.
Great care must be taken to minimize any flow restrictions. Avoid
mounting heat-producing equipment in the same rack, especially below
the TWTA. Failure to provide adequate cooling can result in the unit's
shutting down from overtemperature conditions.
The TWTA dissipates approximately 3300 watts when in the operate mode at full RF power.
3.2.5
AC Line Power Connections
3.2.5.1
Three-phase Models only
AC line power connection to the TWTA is made on a terminal block inside the power supply/control module
enclosure. Access to the terminal block screws is by removal of the bottom panel. Strain relief for a 0.70 inch
diameter cable is provided on the rear panel. The power cord must be five-wire, with conductors of 14 gauge
or heavier. For use in North America, the following color codes for the power cable should be observed:
Color Function
Green Ground
White Neutral
Red Phase
Black Phase
Orange Phase
The amplifier is insensitive to phase rotation. Some amplifiers for the North American market may be
provided with a power cord.
3.2.5.2
Single-phase Models only
The AC line power connection to the TWTA is made through an IEC-320 16A connector on the rear panel.
The connector is provided with a bracket that can be used to secure the mating plug from accidental
withdrawal. The power cord must be 3-wire, with conductors of 12 gauge or heavier.
Units are provided with an unterminated 3-wire cord. To use this line cord, it should be terminated with a
suitable plug to a 190 to 260 VAC 50-60 Hz single-phase source as follows:
Содержание 10012342
Страница 2: ......
Страница 4: ......
Страница 8: ......
Страница 12: ......
Страница 20: ......
Страница 44: ...Model 500T8G18 30 Rev B ...
Страница 48: ...Model 500T8G18 34 Rev B ...
Страница 50: ...Model 500T8G18 36 Rev B ...
Страница 56: ...Model 500T8G18 42 Rev B ...
Страница 70: ...Model 500T8G18 56 Rev B ...
Страница 72: ......