Yokogawa In-Situ Gas Analyzer TDLS200 - Manual (Page 25)

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IM 11Y01B01-01E-A 6th Edition :Feb 13, 2013-00
<4. ANALYZER COMPONENTS>
Optional Mini Display (4x20 VFD) mounts on the analyzer enclosure door. The display itself is an indus-
trial grade 4 line 20 character vacuum fluorescence display (VFD) that is self illuminating (i.e. no back light
required).
Optional 6.5” Display is an industrial grade 6.5” VGA color TFT LCD Module that has a built-in CCFL
backlight. Both the display and interface board are mounted to a cover plate that attaches to the inside of
the enclosure door.
Optional Keypad is an industrial rated 30 key unit that has a PS/2 (6-pos miniDIN) interface direct to the
SBC. It has an Ingress Protection Rating of IP65 equivalent to NEMA 4X and is of low profile design.
Backplane Field Terminal Blocks:
• TB1 - 24VDC Power input 80 w (and optional purge power)
• TB2 – Remote Initiate Validate, calibrate and/or streamswitch
• TB3 – Solenoid Valve(s) Drivers (max 11 w each @24 VDC)
• TB4 – Alarm Contacts (Warning & Fault) Form-C
• TB5 – Alarm Contacts (user & optional Purge) Form-C, Purge is closed on pressure
• TB6 – Ethernet TCP/IP 10/100
• TB7 – Launch Control to Detect Interconnect
• TB14 – Remote Mini Display
Analog I/O Board
• TB8 – Analog Outputs, three 4-20mA isolated
• TB9 – Analog Inputs, two 4-20mA powered or loop powered
Optional Feed-through Board (URD only)
• TB10 – Ethernet to remote Analyzer via Interconnect Cable
• TB11 – to remote Analyzer via Interconnect Cable
• TB12 – Local Connections for RIU or URD + Field I/O
4.3 Laser Assembly
The laser assembly contains: Laser Diode, Collimating Lens, Module,
Body, Window
Laser Assembly Body
Laser Assembly Body is a stainless steel mechanical pipe
housing that accommodates the module and protects it from the
environment. The body has two Swagelok style tube fittings welded
on that serve as inlet and outlet ports for the nitrogen purge gas. The
body attaches to the Main Electronics Housing with an O-Ring seal
and several stainless steel fasteners. At the other end of the body
there is a standard adaptor piece welded in place. This adaptor
can fit several different Process interface systems as well as an off-
line calibration cell. The adaptor also accommodates the standard
Process isolation window holder.
Laser Module
Laser Module is a mechanical component that holds both the
laser diode and the lens holder. The assembly is factory set-
up, permanently configured and
can be replaced in the field if
necessary.
Laser
Module
Body
Window
Figure 9 - Laser Assembly
Figure 10 - Laser Module