Tenma 72-6802 - Safety Instructions; Safety Symbols

SAFETY INSTRUCTIONS
5
SAFETY INSTRUCTIONS
Thischaptercontainsimportantsafetyinstructions
thatyoumustfollowwhenoperatingandstoring
thisinstrument.Readthefollowinginstructions
beforeoperatingtheinstrumenttoensureyour
safetyandtokeepitinbestcondition.
Safety symbols
Thesesafetysymbolsmayappearinthismanualoronthe
instrument.
WARNING
Warning:Identifiesconditionsorpracticesthat
couldresultininjuryorlossoflife.
CAUTION
Caution:Identifiesconditionsorpracticesthat
couldresultindamagetotheinstrumentorto
otherproperties.
DANGER:HighVoltage
Attention:RefertotheManual
ProtectiveConductorTerminal
Earth(Ground)Terminal
72-6802 User Manual
6
Safety guidelines
General
Guideline
CAUTION
• Neverconnectahazardouslivevoltagetothe
groundsideoftheBNCconnectors.Itmight
leadtofireorelectricshock.
• Donotplaceheavyobjectsontheinstrument.
• Avoidsevereimpactsorroughhandlingsthat
leadtodamagingtheinstruments.
• Donotdischargestaticelectricityontothe
instruments.
• Useonlymatingconnectors,notbarewires,for
theterminals.
• Donotblockthecoolingfanopening.
• Donotperformmeasurementsatpower
generatingsourcesandbuildinginstallation
sites(Seenotebelow).
• Donotdisassembletheinstrumentunlessyou
aretechnicallyqualified.
• TopreventapermanentdamagetotheCRT
phosphor,avoidexcessivelybrighteningthe
traceorholdingalightspotforanunreasonably
longtime.
• Donotoperatetheinstrumentinaplacewhere
strongmagneticorelectricfieldexistsasitmay
disturbthemeasurement.
• Makesuretheinputvoltagedoesnotexceedthe
followingvalues.
Input Terminal Maximum Input Voltage
CH1,CH2input 300Vpeak
EXTTRIGinput 300Vpeak