Wika T12 Instrukcja Użytkownika Pobierz pdf (Strona 29)

3211517.0707/2010GB/D

WIKAoperatinginstructionstemperaturetransmitterT12 29

T12.xx.xx9 (Use as non-incentive equipment II 3G EEx nA):

Disconnectionofpowersupplyisforbiddeninsidethehazardous

area.Whenconnectingordisconnectingtheterminalsensurethe

powersupplyisdisconnectedoutsidethehazardousarea.

Thesetemperaturetransmittersmustbemountedinacasethatmust

atleastcorrespondtofollowingingressprotectionIP54accordingto

EN60529/IEC60529.

WhenduringuseincircuitswiththesafetyclassnA(non-incendive)

thepermissibleconnectedloadshavebeenexceededforashortterm

,theuseofthesetransmittersincircuitswiththesafetyclassEExnL

(energylimited)isnotpermissibleanymore.

1)WhenthetransmittersareusedincircuitswiththesafetyclassnA,itispermissibletoexceedthe

maximumsupplyvoltagebyupto40%forashortterm.

■

TheprogrammingunitshallnotconnectedtotheT12iftheT12is

locatedinahazardousarea.Theplugforconnectionofaprogram-

mingunitonthefrontofT12.30shallnotbeusedinhazardarea.

■

Theplugforconnectionofaprogrammingunitonthefrontof

T12.30shallneitherbeusedforprogrammingtheT12norbe

disconnectedduringoperationinahazardousarea.

■

Theexternalwiringshallbesuitablefortheambienttemperature

rangeoftheenduseapplication.Themaximumambienttempe-

ratureforT12of85°Cshallbeconsidered.Theminimumcross

sectionforexternalwiringis0.14mm².

■

icapplications:

ThetemperaturetransmittersmodelsT12.10.xx9andT12.30.xx9

shallbeinstalledinaPollutionDegree2environmentorbetterin

theenduseapplicationforusewithanIP20minimumenclosure

providedbyenduser.

■

nAornLapplications:

ThetemperaturetransmittersmodelsT12.10.xx9andT12.30.xx9

shallbeinstalledinaPollutionDegree2environmentorbetterin

theenduseapplicationforusewithanIP54minimumenclosure

providedbyenduser.

8. Notes for mounting and operating in ...

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 71 72

Brak uwag

Wika T12 Instrukcja Użytkownika Strona 29