YOKOGAWA GC8000 User Manual

2. Installation, Piping, and Wiring
53
TI 11B08A01-01E
2. Installation, Piping, and Wiring
If the process gas chromatograph is installed in a hazardous area, do the wiring according to the
applicableexplosionproofrequirements.
2.1 Installation
Refer to “1.1 Wiring and Piping Diagram.”
2.1.1 Installing the Analyzer
Two types of analyzer are available: self-standing and wall-mounted. Install the chromatograph
according to the procedure for each type.
(1) Installation site
The following conditions must be met:
(a) Satisfyingspeciedenvironmentalconditions(atmosphericgases)evenifitisahazardous
area.
(b) No vibration
(c) Not subject to rainfall or direct sunlight
(d) No corrosive gas and little dust
(e) Environmental temperature: –10 to 50°C, humidity: 95% RH or less
(f) Altitude of installation site: Max. 2000 m above sea level
(g) Installation category based on IEC 61010: II (See NOTE)
(h) Pollution degree based on IEC 61010: 2 (See NOTE)
NOTE:
 •The“Installationcategory”indicatestheregulationforwithstandingimpulsevoltage.Itisalsocalledthe
“Overvoltagecategory”.“II”appliestoelectricalequipment.
 •“Pollutiondegree”describesthedegreetowhichasolid,liquidorgaswhichdegradesdielectricstrength
is adhering. “2” applies to a normal indoor atmosphere.
(2) Analyzer house
If the analyzer is installed outdoors, it should be constructed so as to protect it from rain and
direct sunlight and to facilitate inspection and maintenance.
Figure 2.1 shows an example of an analyzer house.
The house should be designed to provide space for standard gas cylinders because the effects
of the ambient temperature on standard gas can be better controlled indoors than outdoors.
It is also desirable for maintenance that the house accommodates an external sampling system if
any,exceptwhenleakageoftoxicorammablestandardgasistobeavoidedindoors.
TheoorareashowninFigure2.1istheminimumrequirementforthehouse.Allowasmuch
area as possible for the house taking into consideration the types of items to be accommodated
andthespacerequiredformaintenance.
For the maintenance space, refer to “1.2 External Dimensions.”
Provide ventilation openings in the upper portion (near the ceiling) and lower portion (near the
oor)ofasidewallofthehouse.
Also provide a window and electric lights.
Carrier gas cylinders, should be protected from exposure to direct sunlight and rainfall by placing
them under the eaves of the house.
Sep. 07, 2017-00

YOKOGAWA GC8000 Specifications

General

Brand	YOKOGAWA
Model	GC8000
Category	Laboratory Equipment
Language	English