Preparation for Use
Coaxial RF Power Standards Instruction and Service Manual
2-3
DANGER indicates a personal injury hazard immediately accessible as one reads the marking.
Symbols:
As Marked in This Manual:
!
This symbol denotes where precautionary information may be found.
As Marked on Equipment:
!
CAUTION – Risk of Danger
DANGER – Risk of Electric Shock
Earth Ground Terminal
CAUTION – Electrostatic sensitive terminals discharge to ground before touching read
manual for procedure.
l
On
O
Off
Frame or Chassis Terminal
Earth Ground Terminal
Alternating Current
Use in Proper Environment
Normal calibration laboratory practice dictates that the environment should be closely controlled.
This will minimize errors introduced by temperature and humidity changes. A nominal
temperature of +23°C (+73.4°F) provides a good working condition. A tolerance of ±1°C gives
allowable temperature spread. Controlled temperatures also stabilize the aging process of the
standards.
CAUTION: The RF Power Standards have a specified ambient temperature range of +12° to
+40°C (+54° to +104°F). Operating beyond these limits can affect the accuracy of the
instruments and damage internal circuitry.
CAUTION: When an RF Power Standard is to be stored for extended periods, pack the instrument
into a container. Place container in a clean, dry, temperature-controlled location. If instrument is
to be stored in excess of 90 days, place desiccant with items before sealing container. The safe
environmental limits for storage are -55° to +75°C (-67° to +167°F) at less than 95% non-
condensing relative humidity.
Do Not Use in Explosive Environments
CAUTION: The RF Power Standards are not designed for operation in explosive environments.
Do Not Operate Without Covers
CAUTION: This device should be operated with all panels and covers in place.
