Yokogawa RotaMASS 3-Series User Manual

Page 97

9. EXPLOSION PrOTECTEd TyPE INSTrUMENTS

9-21

IM 01R04B05-00E-E 3rd edition July 30, 2010 -00

9.3.3 Operation

If the cover of the converter case has to be opened, following instructions must be fol

owed.

CAUTION

9.3.4 Maintenance and repair

WARNING

the instrument modification of parts replacement by other than authorized representatives of YoKoGaWa
is prohibited and will void the certification.

9.3.5 Ex-relevant marking on name plate

1. Confirm that the power cables to the instrument are disconnected.
2. Wait 15 minutes after power is turned off before opening the covers.
3. the covers of display side and terminal box are fixed with special screws, please use Hexagonal

Wrench to open the covers.

4. Be sure to lock the cover with special screw using the Hexagonal Wrench after tightening the cover.
5. Before starting the operation again, be sure to lock the cover with the locking screws

6. Prohibition of specification changes and modifications. users are prohibited from making any

modifications of specifications or physical configuration, such

as adding or changing the configuration

of external wiring ports.

rCCT3 option /EF3:
IECEx KEMa 06.0031X
Ex d [ib] IIC t6...t3 or Ex de [ib] IIC t6...t3
Ex tD a21 IP6x t150°C
EnCLoSuRE IP67
DIoDE SaFEtY BaRRIER u: 250V
SEE CERtIFICatE FoR Data
MaX. SuRFaCE tEMP.: t150°C

WARNING

WaIt 15 MIn. aFtER PoWER-DISConnECtIon
BEFoRE oPEnInG tHE EnCLoSuRE.

rCCT3 option /EF4:
IECEx KEMa 06.0031X
Ex d [ia][ib] IIC t6...t3 or Ex de [ia][ib] IIC t6...t3
Ex tD a21 IP6x t150°C
EnCLoSuRE IP67
DIoDE SaFEtY BaRRIER u: 250V
SEE CERtIFICatE FoR Data
MaX. SuRFaCE tEMP.: t150°C

WARNING

WaIt 15 MIn. aFtER PoWER-DISConnECtIon
BEFoRE oPEnInG tHE EnCLoSuRE.

rCCT3 option /EF3 /HP:
IECEx KEMa 06.0031X
Ex d [ib] IIB t6...t3 or Ex de [ib] IIB t6...t3
Ex tD a21 IP6x t150°C
EnCLoSuRE IP67
DIoDE SaFEtY BaRRIER u: 250V
SEE CERtIFICatE FoR Data
MaX. SuRFaCE tEMP.: t150°C

WARNING

WaIt 15 MIn. aFtER PoWER-DISConnECtIon
BEFoRE oPEnInG tHE EnCLoSuRE.

rCCT3 option /EF4 /HP:
IECEx KEMa 06.0031X
Ex d [ia][ib] IIB t6...t3 or Ex de [ia][ib] IIB t6...t3
Ex tD a21 IP6x t150°C
EnCLoSuRE IP67
DIoDE SaFEtY BaRRIER u: 250V
SEE CERtIFICatE FoR Data
MaX. SuRFaCE tEMP.: t150°C

WARNING

WaIt 15 MIn. aFtER PoWER-DISConnECtIon
BEFoRE oPEnInG tHE EnCLoSuRE.