16
TI 11B08A01-01E
l Electronics section
The electronics section of the control unit, and the oven unit (large isothermal oven, standard
isothermal oven, programmed temperature oven) is a pressurized enclosure.
Use a hex wrench (an accessory) to open/close the cover of the electronic chamber.
l Precautions for protection system (The analyzer with FM-Y, CSA-Y does not
have the protection system.)
WARNING
When the cover of the protection system is uninstalled, use a gas detector to check that the
concentration of explosive gases in the ambient atmosphere is less than the allowable limit.
Theprotectionsystemisaameproofenclosure.
When handling the screws on the cover of the protection system, note the following to avoid
damaging the screws since they cannot be repaired.
• Use a hex wrench (option) to tighten/loosen the hexagon socketset screw.
• The cover should be placed in a clean plastic bag or on a clean space to prevent it from
contamination.
Beforeinstallingthecover,conrmthatthebodyandscrewsarenotcontaminated.Ifthey
are, make sure to clean them.
• Since the screws are coated with MOLYKOTE, do not lubricate them.
• When installing the cover, tighten the screws by hand; never use tools.
Cover
Body
Threads
Hex. key wrench
(Accessory kit)
Hex.socket set screw
Protection-film cover for wiring
Turn in this direction
to replace
Turn in this direction
to remove
Figure 4 Opening/closing the cover of the protection system
l Precautions for hydrogen gas
When using hydrogen gas as the carrier gas, the FID or FPD combustion gas, install the analyzer
inalocationequippedwithaventilatororwherethereissufcientventilationtoensuresafety.
Check for leaks regularly to make sure there are no gas leaks from the pipe joints.
Supplyhydrogengastothisanalyzerat500±20kPatomeettheexplosionproofrequirements.
Sep. 07, 2017-00
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