Princeton Instruments PhotonMAX System Manual page 11

Chapter 1 Introduction 11
Safety Related Symbols Used in this Manual
Caution! The use of this symbol on equipment indicates that one or
more nearby items should not be operated without first consulting the
manual. The same symbol appears in the manual adjacent to the text
that discusses the hardware item(s) in question.
Warning! Risk of electric shock! The use of this symbol on
equipment indicates that one or more nearby items pose an electric
shock hazard and should be regarded as potentially dangerous. This
same symbol appears in the manual adjacent to the text that discusses
the hardware item(s) in question.