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Safety Notices
CAUTION
A CAUTION notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in damage to the product
or loss of important data. Do not
proceed beyond a CAUTION
notice until the indicated
conditions are fully understood
and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or
death. Do not proceed beyond a
WARNING notice until the
indicated conditions are fully
understood and met.
EMC Information
The U1281A/U1282A is
EMC-certified in compliance with
IEC 61326-1/EN 61326-1, ICES/
NMB-001, and AS/NZS CISPR 11.
For further safety information details, refer to the
Keysight U1281A/U1282A Handheld Digital Multimeter
2
Safety Information
The U1281A/U1282A is
safety-certified in compliance with
IEC/EN 61010-1, IEC/EN
61010-2-033, CAN/CSA-C22.2 No.
61010-1-12, CAN/CSA-C22.2 No.
61010-033-12, ANSI/UL
61010-1-12, and ANSI/UL
61010-033-12. Use with standard
or compatible test probes.
Safety symbols
CAT III
1000 V
CAT IV
600 V
User's Guide.
Keysight U1281A/U1282A Quick Start Guide
Direct current (DC)
Alternating current (AC)
Caution, risk of
electric shock
Caution, risk of danger
(refer to this manual for
specific Warning or
Caution information)
Earth (ground) terminal
Equipment protected
throughout by double
insulation or reinforced
insulation
Category III 1000 V
overvoltage protection
Category IV 600 V
overvoltage protection
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