Introduction
Thank you for purchasing the Hioki 3280-10F,
3280-20F AC Clamp Meter. To obtain maximum
performance from the instrument, please read this
manual fi rst, and keep it handy for future reference.
Average value measurement RMS conversion
3280-10F
model
3280-20F True RMS measurement model
Safety Notes
This instrument is designed to conform to IEC 61010
Safety Standards, and has been thoroughly tested
for safety prior to shipment. However, using the
instrument in a way not described in this manual
may negate the provided safety features. Before
using the instrument, be certain to carefully read the
following safety notes.
Notation
In this document, the risk seriousness and the
hazard levels are classifi ed as follows.
DANGER
WARNING
CAUTION
Imminent risk of operator death
or serious injury
Potential for operator death or
serious injury
Potential for minor operator
injury or device damage or
malfunction
Introduction
EN-1