GW Instek GDS-3000 Series GCP-530/1030 current probe User Manual - Manual (Page 7)

PRECAUTIONS
7
P
RECAUTIONS
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various
functions.
Preliminary Check
Before using the device the first time, verify that it operates normally
to ensure that the no damage occurred during storage or shipping. If
you find any damage, contact your dealer.
DANGER
• To avoid short circuits and potentially life-
threatening hazards, never attach the GCP-530 or
GCP-1030 to a circuit that operates at more than
300V, or over bare conductors.
• When conductors being measured carry in excess
of the safe voltage level (SELV-E) and not more
than 300 V, to prevent short circuits and electric
shock while the core section is open, make sure
that conductors to be measured are insulated with
material conforming to
(1) Measurement CategoryⅠ,
(2) Basic Insulation Requirements for Working
Voltages of 300 V, and
(3) Pollution Degree 2.
For safeties sake, never use this sensor on bare
conductors. The core and shield case are not
insulated.