vii
IM WT310E-02EN
Safety Precautions
This product is designed to be used by a person with specialized knowledge.
This instrument is an IEC safety class I instrument (provided with a terminal for protective earth grounding).
The general safety precautions described herein must be observed during all phases of operation. If the
instrument is used in a manner not specified in this manual, the protection provided by the instrument may
be impaired. YOKOGAWA assumes no liability for the customer’s failure to comply with these requirements.
This manual is part of the product and contains important information. Store this manual in a safe place close
to the instrument so that you can refer to it immediately. Keep this manual until you dispose of the instrument.
This instrument is a power measurement instrument that can measure parameters such as voltage,
current, and power. Do not use this instrument for anything other than its intended purpose.
The following symbols are used on this instrument.
Warning: handle with care. Refer to the user’s manual or service manual. This symbol appears on
dangerous locations on the instrument which require special instructions for proper handling or use.
The same symbol appears in the corresponding place in the manual to identify those instructions.
Electric shock, danger
Ground (earth) or functional ground terminal (do not use this terminal as a protective ground terminal.)
Alternating current
Both direct and alternating current
On (power)
Off (power)
On (power) state
Off (power) state
French
Avertissement : À manipuler délicatement. Toujours se reporter aux manuels d'utilisation et
d'entretien. Ce symbole a été apposé aux endroits dangereux de l'instrument pour lesquels des
consignes spéciales d'utilisation ou de manipulation ont été émises. Le même symbole apparaît
à l'endroit correspondant du manuel pour identifier les consignes qui s'y rapportent.
Choc électrique, danger
Borne de terre ou borne de terre fonctionnelle (ne pas utiliser cette borne comme prise de terre)
Courant alternatif
Courant direct et alternatif
Marche (alimentation)
Arrêt (alimentation)
Marche
Arrêt