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System Description
Ozonator Permeation Dryer
Ozonator
The permeation dryer minimizes routing maintenance procedures by
providing a continuous stream of dry air to the ozonator (using the
Permeation
selective water permeation characteristics of the dryer). With the
Dryer
permeation dryer option, it is not necessary to constantly replenish the
ozonator air-drying column as in the standard instrument.
NO
-to-NO
The NO
-to-NO converter heats molybdenum to approximately 325 °C in
2
2
order to convert and detect NO
. The converter consists of an insulated
Converter
2
housing, heater, replaceable cartridge, and a type K thermocouple sensor.
Common
The common electronics contain the core computational and power
routing hardware for the 42iQLS, and is replicated throughout other iQ
Electronics
series products
(Figure
8–1). It also contains front panel display, the USB
ports, the Ethernet port, and the optional I/O interfaces (RS-485, analog,
and digital).
Figure 8–2
shows the PCBA interconnect structure for the 42iQLS,
including options. The modular design of the instrument is conveyed in
the architecture. Brief descriptions of the specific PCBAs follow.
Thermo Scientific
42iQLS Instruction Manual
8-3
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