Yokogawa RotaMASS 3-Series User Manual

Page 88

9. EXPLOSION PrOTECTEd TyPE INSTrUMENTS

9-12

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

WARNING

9.2.3 General warnings

- Substitution of components may impair intrinsic safety !
- only trained persons may use the instrument in industrial location.
- the instrument modification of parts replacement by other than authorized representatives of YoKoGaWa

is prohibited and will void the certification.

- If the cover of the converter case has to be opened, following instructions must be followed:
- Confirm that the power cables to the instrument are disconnected.

- Wait 15 minutes after power is turned off before opening the covers.
- the covers of display side and terminal box are fixed with special screws, please use Hexagonal Wrench

to open the covers.

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

- 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.