AR 10009284, Operating And Service Manual

Page: 21 / 62

Rev A 7
3. OPERATION
3.1 WARNINGS AND CAUTIONS
Throughout this manual, the symbol:
WARNING:
indicates that a hazard exists that may result in personal injury or loss of life.
CAUTION:
indicates that failure to follow procedures may result in damage to the
equipment.
WARNING: DANGER - High Voltage Present:
Electrical equipment in this TWTA generates and stores high-voltage
energy that can result in fatal electrocution. Do not operate the TWTA
with covers or the front panel removed.
Service work must be performed only by technicians thoroughly familiar
with the high-voltages present in microwave tube amplifiers in general,
and with this equipment in particular.
Never handle the TWT leads or the high-voltage connectors unless the
unit has been unplugged and it has been positively established that the
high-voltage filter capacitors have been discharged to a
known safe level.
WARNING: Safety Ground
Improper grounding of this equipment can result in electric shock. The
TWTA must be operated only with a line cord with a safety ground wire.
It is the user's responsibility to ascertain that the power connector is
properly wired and that the power outlet is grounded.
WARNING: Explosive Atmosphere
To avoid explosion, never operate this TWTA in an explosive atmosphere.
This equipment is not certified for operation in an explosive atmosphere.
3.2 INSTALLATION
3.2.1 Unpacking
Upon receiving the TWTA, unpack the unit and inspect it for obvious signs of external damage. If damage is
observed, notify the carrier and contact an authorized service representative.
Save and store the shipping container in case the unit needs to be returned in the future for calibration or
repair.