SDM3055 Series Digital Multimeter User Manual
2 int.siglent.com
General Safety Summary
Read the following safety precautions carefully to avoid any personal injuries or damages to the
instrument and any products connected to it. To avoid potential hazards, please use the instrument
as specified.
Use proper power line.
It’s only allowed to use the special power line which is approved by local state.
Ground the instrument.
The instrument is grounded through the protective terra conductor of the power line. The ground
conductor must be connected to the earth to avoid electric shock. Make sure the instrument is
grounded correctly before connecting its input or output terminals.
Connect the signal wire correctly
The potential of the signal wire is equal to the earth, so do not connect the signal wire to a high
voltage.
Observe all terminal ratings
Please observe all ratings and sign instructions on the instrument to avoid fire or electric shock. Before
connecting the instrument, please read the manual carefully to gain more information about the ratings.
Do not operate with suspected failures
If you suspect that the product is damaged, please contact
SIGLENT’s
qualified service personnel to
inspect it. Any repair and adjustment to the product or replacing a component should be done by
qualified personnel only.
Avoid circuit or wire exposure
Don’t touch exposed contacts or components when the power is on.
Don’t operate without covers.
Don’t operate the instrument with covers or panels removed.
Use proper fuse.
It’s
only allowed to use the specified fuse for the instrument.
Use proper over-voltage protection.
Make sure there is no over-voltage (like voltage caused by thunder and lightning) reaching to the
instrument, otherwise the operator may suffer an electric shock.
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