Chapter 9 Optional Equipment - Thermo Scientific 42i Instruction Manual

Internal Zero/Span
and Sample Valves
Ozonator Permeation
Thermo Fisher Scientific
Chapter 9
Optional Equipment
The Model 42i Trace Level is available with the following options:
"Internal Zero/Span and Sample
●
"Ozonator Permeation
●
"Ammonia
●
"Teflon Particulate
●
"Ozone Particulate
●
"NO2-to-NO
●
"I/O Expansion Board
●
"Terminal Block and Cable
●
"Cables" on page
●
"Mounting
●
With the zero/span assembly option, a source of span gas is connected to
the SPAN port and a source of zero air is connected to the ZERO port.
Zero and span gas should be supplied at atmospheric pressure. It may be
necessary to use an atmospheric dump bypass plumbing arrangement to
accomplish this.
For more information, refer to the "Installation" chapter and the
"Operation" chapter.
The permeation dryer minimizes routing maintenance procedures by
providing a continuous stream of dry air to the ozonator (using the
Dryer
selective water permeation characteristics of the dryer). With the
permeation dryer option, it is not necessary to constantly replenish the
ozonator air-drying column as in the standard instrument.
Refer to the "Operation" chapter for more information.
Valves" on page
Dryer" on page
Scrubber" on page 9-2
Filter" on page
Filter" on page
Converter" on page
Assembly" on page
Kits" on page
9-3
Options" on page 9-4
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Model 42i Trace Level Instruction Manual 9-1