Major tech MT874, Instruction Manual

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1. Safety
1.1. Safety Instructions
• This meter has been designed for safe use, but must be operated with
caution.
• The instructions listed below must be carefully followed for safe operation.
1. Never apply voltage or current to the meter that exceeds the specified
maximum:
2. Use extreme caution when working with high voltages.
3. Do not measure voltage if the voltage on the “com” input jack exceeds
600V.
4. Never connect the meter leads across a voltage source while the function
switch is in the current, resistance or diode mode. Doing so can damage
the meter.
5. Always discharge filter capacitors in power supplies and disconnect the
power when making resistance or diode tests.
6. Always turn off the power and disconnect the test leads before opening
the cover to replace the fuse or batteries.
7. Never operate the meter unless the back cover, the battery and fuse
covers are in place and fastened securely.
8. If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
1.2. Safety Symbols
This symbol adjacent to another symbol, terminal or operating
device indicates that the operator must refer to an explanation in
the Operating Instructions to avoid personal injury or damage to the
meter.
This WARNING symbol indicates a potentially hazardous situation,
which if not avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation,
which if not avoided, may result in damage to the product.
This symbol advises the user that the terminal(s) so marked must
not be connected to a circuit point at which the voltage exceeds
600 VAC or VDC.
This symbol adjacent to one or more terminals identifies them as
being associated with ranges that may, in normal use, be subjected
to particularly hazardous voltages. For maximum safety, the meter
and its test leads should not be handled when these terminals are
energized.
This symbol indicates that a device is protected throughout by
double insulation or reinforced insulation. This symbol indicates
that a device is protected throughout by double insulation or
reinforced insulation.
MAX