YOKOGAWA GC8000 - Safety System Management; Installation and Wiring Works; Emergency Actions; Regular Proof Testing

24
TI 11B08A01-01E
● Installationandwiringworks
The safety system is built-in GC8000. Installation and wiring into GC8000 are completed before
shipping.
• DonotuseforotherthanGC8000.
• Donotchangeconnectionofcablesandharnesses.
● ActioninEmergency
Relays and SSRs in safety system will be in safe state (contact opens) when de-energized.
In emergency, stop supply of power to GC8000 immediately and contact your nearest Yokogawa
representative.
• Inanormalsituation,followtheprocedureof“●Operation”forshutdown,orGC8000may
be damaged.
● Regularprooftest
In order to maintain the safety function, proof test at least once while test period below is
necessary. Contact your nearest Yokogawa representative.
If proof test is not performed for longer than test interval, GC8000 cannot be used as explosion
proofequipment.
Protection system Oven safety unit
Test interval No needed 3 years
● Replacement
In following case, stop supply of power to GC8000 immediately and replace the safety system.
• Safetyfunctiondoesnotworkcorrectly.
• Safetysystemisusedoverreplacementinterval.
Replacement is needed even if all safety functions work correctly.
Contact your nearest Yokogawa representative.
Protection system Oven safety unit
Replacement interval 12 years 27 years
Sep. 07, 2017-00