SIG
L
ENT
II SDM3055 Digital Multimeter
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.
