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Servicing
External Device Connection Components
Digital Output Board
I/O Expansion
Board (Optional)
Capillary (Pump)
Fan
Pump
Solenoids (Span Gas)
Solenoid
(External/Internal)
Mixing Chamber
Manifold
Solenoid (Zero Air)
Mass Flow Controllers
7-8
Model 146i Instruction Manual
Motherboard
Ozonator Board (Top)
Photometer Board (Bottom)
Pressure
Back Pressure
Fan
Transducer
Regulator
Figure 7-2. Component Layout
Capillary (Photometer)
DC Power Supply
Photometer
Reaction
Reaction
Permeation Oven
Chamber
Chamber
Solenoid
Front Panel Connector Board
Measurement
Interface Board
Front Panel Display
Solenoid (Sample/Reference)
Capillary (Ozonator)
Ozonator
Solenoid (Ozonator)
Capillary (Pressure Gauge)
Solenoid (Perm 1)
Solenoid (Perm 2)
Pressure Regulator
Thermo Fisher Scientific
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Troubleshooting
