Thermo Scientific 42iQHL, Instruction Manual

Page: 300 / 322

Optional Equipment
Ammonia Scrubber
9-20 42iQHL Instruction Manual Thermo Scientific
The ammonia scrubber is mounted internally and removes ammonia from
the sample air.
The 42iQHL includes a stainless steel NO
2
-to-NO converter as standard
equipment.
The permeation dryer minimizes routing maintenance procedures by
providing a continuous stream of dry air to the ozonator (using the
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.
A 5-10 micron pore size, two-inch diameter PTFE element is available for
the 42iQHL. This filter should be installed just prior to the
SAMPLE
bulkhead. When using a filter, all calibrations and span checks must be
performed through the filter.
The ozone particulate filter minimizes the potential for contamination of
the capillary and reaction chamber by trapping any particulate matter
before passing through the capillary and reaction chamber.
Ammonia
Scrubber
NO
2
-to-NO
Converter
Permeation
Dryer
PTFE Particulate
Filter
Ozone
Particulate Filter