Yokogawa Extractive Oxygen Gas Analyzer TDLS220 - Manual (Page 20)

<4 ANALYZER COMPONENTS> 4-5
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
Remote Interface Options
A number of options are available for remote access to the analyzer
Remote Interface Unit (RIU) shown below allows remote analyzer control and data transfer from analyzer
to RIU (data can be transferred from RIU via USB
memory stick or Compact Flash card.
• Allows multi-unit field communication via central
user interface
• Not required for individual analyzer operation,
interface and data transfer only
• Connects with 1-7 analyzers via Ethernet switch
• Integral Keypad and 6.5” display
External Computer via Ethernet. A separate
computer can be connected to the analyzers
locally or through an Ethernet network to allow
analyzer control and data transfer
The optional Remote Interface Unit (RIU) consists of:
• Back Plane circuit board, SBC, Display and Keypad
• Optional Analyzer Feed-through circuit board and/or Ethernet switch
• All field electrical terminals are located on the Back Plane.
A single RIU can be used in conjunction with up to 7 analyzers via Ethernet (more with additional/custom
Ethernet switches).
The unit acts as a remote interface for the analyzer. Should the physical location of the actual analyzer(s)
be inconvenient for easy access, then the RIU can be used.
It can be mounted up to 100m (330ft) away from the analyzer(s) using the standard 10-BaseT twisted pair
wiring method. It communicates to the analyzer(s) through a Virtual Network Connection (VNC). If there is
more than one analyzer connected to the RIU, then they are routed via an industrial Ethernet switch. Up to
four analyzers can be routed through one RIU switch.
The RIU Enclosure is die cast copper free aluminum grade AL Si 12 alloy (A413.0) with a powder coat ex-
terior 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). Wall mounting brackets are included with the RIU.
The environmental protection rating is considered IP66 (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 chassis.
The RIU is supplied with standard integral display and keypad.
Figure 4 - Networked Analyzers