Advertisement
System Description
Common Electronics
Photometer DMC
with Lamp
Detector System
Photometer Lamp Power
Ozonator DMC
Ozonator Lamp Power
Common
Electronics
8-2
49iQ Instruction Manual
Ozone Scrubber
●
Firmware
●
The optical bench has two airtight chambers that contain the sample and
reference gases with a common photometer lamp at one end and two
individual detectors at the other end.
The photo-diode in each detector transmits light intensity information to
the DMC board for sample measurement computations.
The photometer lamp power supply generates high voltage AC and
Supply
contains heater control circuits for the photometer lamp.
The optional internal ozonator operates on the photolytic principle. The
ozone level produced is a function of light intensity at 185 nm and gas
flow. The light intensity is varied by changing the current into the lamp.
The gas flow is held constant by a pressure regulator followed by a
capillary.
The optional ozonator lamp power supply generates high voltage AC and
contains heater control circuits for the ozonator lamp.
Supply
The common electronics contain the core computational and power
routing hardware for the 49iQ, and is replicated throughout other iQ series
products
(Figure
the Ethernet port, and the optional I/O interfaces (RS-485, analog, and
digital).
Figure 8–2
options. The modular design of the instrument is conveyed in the
architecture. Brief descriptions of the specific PCBAs follow.
8–1). It also contains front panel display, the USB ports,
shows the PCBA interconnect structure for the 49iQ, including
Thermo Scientific
Advertisement
Chapters
