Multimetrix DMM 230 Notice De Fonctionnement page 22

Example : measurements on devices installed before the main fuse or
circuit breaker in the building installation.
1.1.2 When using the instrument
- Never exceed the protection limiting values indicated in the
specifications for each type of measurement.
- When the multimeter is connected to the circuits to be measured, do
not touch any unused terminals.
- Before changing function, disconnect the measurement leads from the
circuit measured.
- Never measure resistances or test diodes, etc., on a live circuit.
1.1.3 Symbols
A
ccording to WEEE directive 2002/96/EC
Refer to the user's manual
Risk of electric shock
Double insulation
1.1.4 Instructions
Before opening the instrument, disconnect it from the circuits to be
measured and make sure that you are not charged with static electricity,
which could irreparably damage the instrument's internal elements.
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Chapter II
DMM230