1.3 Names and Functions of Parts
See display of (p.16) for other indications.
Front Panel
RELEASE key
• Press this key before mea-
surement after any of 500 V
or 1000 V ranges is used (to
prevent from misuse).
• When PVΩ range is set, the
voltage to be applied will be
determined.
500V Ω 1000V key
PVΩ range is used to switch
between 500V and 1000V.
Other functions are same with the
ones for IR4051 and IR4052.
IR4053
A measured
value or a
comparator
reference
IR4053
Display
Lit when PVΩ measurement mode is selected.
Lit when 500 V range is selected in PVΩ measure-
ment mode.
Lit when 1000V range is selected in PVΩ measure-
ment mode.