Model 77 Series IV
Users Manual
2
•
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.
•
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.
Symbols
Symbol
Description
Symbol
Description
AC (Alternating Current)
Fuse
DC (Direct Current)
P
Conforms to European Union directives
DC/AC
)
Certified by CSA Group to North American
safety standards.
Earth
T
Double insulated
W
WARNING. RISK OF DANGER.
X
WARNING. HAZARDOUS VOLTAGE. Risk of
electric shock.
Summary of Contents for 77 Series IV
Page 4: ...ii...
