Fluke 77 Series IV User Manual page 3

Model 77 Series IV
Users Manual
• Do not use a current measurement as an indication
that a circuit is safe to touch. A voltage measurement
is necessary to know if a circuit is hazardous.
• Do not use the Product if it is damaged.
• Disable the Product if it is damaged.
• Do not use the Product above its rated frequency.
• Do not use in CAT III or CAT IV environments without
the protective cap installed on test probe. The
protective cap decreases the exposed probe metal to
<4 mm. This decreases the possibility of arc flash
from short circuits.
Symbols
Symbol
AC (Alternating Current)

DC (Direct Current)


DC/AC

Earth

W
WARNING. RISK OF DANGER.
Description
• Replace a blown fuse with exact replacement only for
continued protection against arc flash.
• Do not use the HOLD function to measure unknown
potentials. When HOLD is turned on, the display
does not change when a different potential is
measured.
• Attempting to make a measurement with a test lead in
an incorrect terminal might blow a fuse, damage the
Meter, and cause serious personal injury.
Symbol Description
Fuse

P
Conforms to European Union directives
Certified by CSA Group to North American
)
safety standards.
Double insulated
T
WARNING. HAZARDOUS VOLTAGE. Risk of
X
electric shock.