Hitachi E-Compact Medium Power Series

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E-Compact Medium Power

2.6.2 Humidity.

Relative air humidity inside the shelter is also considered a critical factor for improved

performance and longer equipment life. Hitachi Kokusai Linear equipment should operate

in dry environments, which can also be achieved by the use of air conditioners. According

to the transmission power, the relative humidity inside the shelter should be:

• E-COMPACT LOW POWER TV TRANSMITTERS: 0 to 90%

• E-COMPACT MEDIUM POWER AND HIGH POWER TV TRANSMITTERS: 0 to 80%

There must never be condensation since water can damage the internal circuits of the

transmitter.

2.6.3 Cooling.

Cooling has to be always in "recirculate", with the air conditioning lowering the temperature

of the room, without external air intake. For better performance of the cooling system, the

air conditioner be installed in series with the transmitter cooling cycle, direct the output air

conditioning flow to the front of the Hitachi Kokusai Linear TV Transmitter.

The physical installation of the transmitter should protect a free area around it for better

cooling efficiency and access to maintenance.

Hitachi E-Compact Medium Power Series - Cooling; Humidity