Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 129)

<2. Installation, Piping, and Wiring>
2-12
IM 11B08A01-01E
When ejector suction is used in the sample outlet system, connect the venting pipes to the
downstream of the vent header with a pipe of I.D. 10 mm or more.
CAUTION
Please keep safety in mind because the sample vent is usually open to the atmosphere.
When the sample vent is connected to the fl are stack, please consider the pressure and the fl ow
rate of the stack.
(i) Steam drain pipe
This is used to drain the condensate of the steam for heating the sample.
Connect the piping from the steam trap of the analyzer and also from the condensate drain piping
port (CONDENSATE OUT), if provided, to the drain pit on the down-grade.
(j) Pipes for external valves
These are used for piping between the analyzer valve actuating pneumatic outlet and the
external sampling system to actuate the stream valves and atmospheric balance valves provided
in the external sampling system. Connect the piping properly according to the piping diagram.
Use stainless steel of O.D. 6 mm or 1/4 inch.
2.3 Wiring
See “1.1 Wiring and Piping Diagram” for wiring.
Note that the specifi cations determines the number of the protection system, which results in
different wiring.
Table 2.3 Number of protection system
Explosionproof
Specifi cations
Type 1 (100)
Type 2 (120)
Type 3 (222)
100 V (-A, B, C, D) 200 V (-E, F, G, H)
TIIS (-T) 1 2 1 2
FM X (-F) 1 2 1 2
FM Y (-G) 0
ATEX (-A) 1 2 1 2
IECEx (-E) 1 2 1 2
( ): Suffi x codes
WARNING
In case of TIIS-certifi ed wiring, the attached cable packing adapters or sealing fi tting must be
used.
Otherwise, it does not comply with TIIS regulation.
2nd Edition : May 11, 2012-00