Operating instructions

DIRECTIONAL POWER HEADS
A-2
Precautions
These terms have specific meanings in this manual:
WARNING
information to prevent personal injury.
information to prevent damage to the equipment.
important general information.
Hazard symbols
The meaning of hazard symbols appearing on the equipment is as follows:
Symbol Nature of hazard
RF Hazard
Toxic hazards
Safety
This product has been designed and tested in accordance with BS4743 'Specification for safety
requirements for electronic measuring apparatus' and IEC Publication 348 'Safety requirements for
electronic measuring apparatus'.
WARNING
RF hazard
When measuring high VSWR ratios, hazardous voltages may be present on the line due to
standing waves. Under these conditions, it is dangerous to operate the equipment with the covers
removed.
WARNING
Toxic hazards
Some of the components used in this equipment may include resins and other materials which give
off toxic fumes if incinerated. Take appropriate precautions, therefore, in the disposal of these
items.