Yokogawa RotaMASS 3-Series - Manual (Page 88)

9. EXPLOSION PrOTECTEd TyPE INSTrUMENTS
9-12 IM 01R04B05-00E-E 3rd edition July 30, 2010 -00 all Rights Reserved. Copyright © 2005, Rota Yokogawa
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.