Yokogawa Extractive Oxygen Gas Analyzer TDLS220 - Manual (Page 30)

ELECTRONICS
CONTROLLER
FLOW CELL
POWER
HEAT
TRACE
LASER &
DETECT
N2 Purge Inlet
N2 Purge Vent
Hazardous
Area
Div 2 BCD
ATEX CAT3
I/A Purge Inlet
I/A Purge Vent
ELECTRONICS
CONTROLLER
FLOW CELL
POWER
HEAT
TRACE
LASE
R &
DETE
CT
Purge
Pressure
Switch with
Indicator
Div 2 BCD
ATEX CAT3
Hazardous
Area
Div 2 BCD
ATEX CAT3
<5 INSTALLATION AND WIRING> 5-7
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
Figure 13 – Hazardous Area N
2
Analyzer Purge Schematic
Figure 14 – Hazardous Area I/A Analyzer Purge Schematic
Please also refer to any separate Purge System Original Manufacturers Operating
Instructions and Manuals in conjunction with this Instruction Manual.
N
2
Purge Inlet
N
2
Purge Vent