Rohde & Schwarz SR8000 Series - Mechanical Loading; Protection of Air Supply

Chapter 2 Design and Function
5300.9677.72 - 2.27 - EN-4
2.1.8 Mechanical Loading
The transmitter is a 19" unit. The weight of the various instruments can be found in the fol-
lowing table (protection mechanism column).
The table lists two categories of mechanical hazards:
– Weight
– Other potential causes of injury
2.2 Protection of Air Supply
The transmitter is air-cooled. Failure of the air supply leads to overtemperature at the RF
amplifiers and their power supply.
The following mechanisms to protect against overtemperature exist:
Fault Protection mechanism Function
R&S SR8010 Weight < 10 kg None
R&S SR8025/SR8050 Weight < 25 kg None
R&S SR8100 Weight < 26 kg None
R&S SR8130/VU813 Weight < 31 kg None
Rotating fan Cover grid Cover
Fault Protection mechanism Function
Overtemperature at the
amplifier heat sink
Overtemperature monitoring of ampli-
fier responds.
Shutdown of amplifier
Overtemperature in the
power supply unit
Overtemperature monitoring of power
supply unit responds
Shutdown of transmit-
ter