Radio Shack 22-812A, Руководство пользователя, Страница: 4 / 24

MASTER BKGRD 6-26-07
Safety Precautions
MASTER BKGRD 6-26-07
Read and follow these safety precautions.
•
�e�er apply �oltages to the meter that e�ceed the limits gi�en in the �e�er apply �oltages to the meter that e�ceed the limits gi�en in the
specifications. Never apply more than 1000V DC or 750V RMS AC between
the input jacks and ground.
•
Use e�treme caution when working with �oltages abo�e 100V. Always Use e�treme caution when working with �oltages abo�e 100V. Always
disconnect power from the circuit you are measuring before you connect test
leads to high-�oltage points.
•
�e�er connect the test leads to a �oltage source when you set the meter’s
function dial to / , / ,
LOGIC
/
Hz
, /
µA/A
, or /
mA/A
.
•
Always discharge any capacitors of the circuit under test before you attach Always discharge any capacitors of the circuit under test before you attach
test leads.
•
Always turn off power and disconnect the test leads from the circuit you are Always turn off power and disconnect the test leads from the circuit you are
testing before you replace the meter’s battery or fuse. �e�er operate the
�e�er operate the
meter unless its back co�er and battery co�er are in place and fully closed.
•
�e�er try to probe with both test leads at the same time or hold both test
leads in one hand.
•
The test leads supplied with your meter are rated for 1000 �olts. Use only test
leads of the same rating with the meter. You can order replacement leads
from your local
RadioShack store.
•
Do not use a fuse brand or rating other than those specified here. Doing so
might damage your meter.
•
Because many AC/DC sets ha�e a potentially hot chassis, be sure the top
of your workbench and the floor underneath it are made of non-conductive
materials.
• Your multimeter is designed primarily to measure household AC �oltages.
Because of the dangers inherent in measuring three-phase circuits, we
STRO�GLY ReCOMMe�D YOU DO �OT USe ThiS MeTeR TO MeASURe
3-phASe, Li�e-TO-Li�e VOLTAGe. if you still want to, put on protecti�e
clothing—a face shield and fireproof gloves and upper body protection is
required before measuring. if you do not ha�e this protection, DO �OT
MeASURe TheSe CiRCUiTS.
•
To reduce the risk of fire or shock hazard, do not expose this product to rain
or moisture. For indoor use only.
•
when you are not using the meter, always turn it off.
•
�f this e�uipment is used in a manner not specified in this user�s guide, the �f this e�uipment is used in a manner not specified in this user�s guide, the
protection pro�ided by the equipment may be impaired.