Yokogawa Extractive Oxygen Gas Analyzer TDLS220 - Manual (Page 16)

<4 ANALYZER COMPONENTS> 4-1
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
Figure 2 - System Overview
4 Analyzer Components
4.1 Main Electronics Housing
Enclosure
Die cast copper free aluminum grade AL Si 12 alloy (A413.0) with a powder coat exterior finish. The copper
free aluminum alloy is particularly resistant to salt atmospheres, sulfur gases and galvanic corrosion.
An externally hinged door opening to the left incorporates a weather tight gasket seal and four captive
fastening screws (stainless steel). The external dimensions are approx 16” W x 12” H x 7” D (400mm x
300mm x 180mm).
The environmental protection rating is considered IP65 (EN 60529) or NEMA 4X.
Cable entries are located on the bottom face of the enclosure. They are typically ¾” Myers hubs that have
¾” NPT female threads. Each has a ground lug to facilitate the grounding of cable shields to the analyzer
chassis as needed.
When an analyzer has been supplied with the optional Mini Display (4x20 VFD), the normally blank (blind)
door has a different configuration. The center of the door has a cut-out measuring approx 3” W x 1” H
(75mm x 25mm). A clear laminated safety glass window is mounted to the inside of the door with stainless
steel fasteners and a weather tight gasket. This allows for external viewing of the actual VFD display
without opening the door.
When an analyzer has been supplied with the optional integral 6.5” display and keypad, then the normally
blank (blind) door has a different configuration. The left hand side of the door has a cut-out measuring