Triplett 9007-A - Manual (Page 12)

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low side of a power circuit first. Never clamp onto a
hot wire first, (usually red, black, or blue in AC wiring
circuits.)
If you clamp onto a hot wire first, and touch
the other probe, you could receive a shock. Failure to
observe this precaution may result in damage to the
meter or injury
to the user.
2.41 To avoid damage to the meter and possible user injury,
disconnect test leads from test points before changing
the function/range. Failure to observe this precaution
may result in damage to the meter or injury to the user.
2.42 Avoid usage near strong magnetic fields (magnets,
loudspeakers, transformers, motors, coils, relays,
contactors, electromagnets, etc.). The meter may
display readings that are in error, causing the user to
misinterpret the hazards present. For example, the
meter may indicate a low voltage when high
voltages are actually present. Failure
to observe this precaution may result in damage to the
meter or injury to the user.
2.43 Avoid usage near strong electrostatic fields (high
voltage power lines, televisions, computer
monitors, etc.).The meter may display readings
that are in error, causing the user to misinterpret