Yokogawa GC1000 Mark II Process Gas Chromatograph - Manual (Page 12)

<Toc> <Ind> <Rev> <Introduction>
xi
IM 11B03A03-01E
<CSA>
For type X purging:
* This equipment contains components that operate at high temperature. The equip-
ment shall be deenergized for 60 minutes to permit those components to cool before
the enclosure is opened unless the area is demonstrated to be nonhazardous at the
time.
* Enclosure shall not be opened unless the area is known to be non-hazardous, or
unless all devices within the enclosure have been de-energized. Power must not be
restored after enclosure has been opened until enclosure has been purged for 12
minutes at a flow rate of 0.05m
3 /min.
* Power will automatically be removed when purge pressure falls below 40 mm (1.6 in)
of water column.
For explosionproof enclosure:
* A seal shall be installed within 50 cm of the enclosure.
* Open circuit before removing cover.
For type Y purging:
* Enclosure shall not be opened unless the area is known to be non-hazardous, or
unless all devices within the enclosure have been de-energized. Power must not be
restored after enclosure has been opened until enclosure has been purged for 12
minutes at a flow rate of 0.05m
3 /minute min.
* Remove power below 40mm (1.6in) of water column.
Take care not to generate mechanical spark when accessing to the instrument and periph-
eral devices in hazardous locations.
Do not press prick the keyboard of LCD panel (operation and display section) using such
as knives and sticks.
(10) Maintenance and Repair
The instrument modification or parts replacement by other than authorized representative
of Yokogawa Electric Corporation is prohibited and will void the approval of Factory Mutual
Research Corporation and CSA certification and CENELEC certification .
3rd Edition : Aug. 23. 2006-00