Galvanic Applied Sciences 943-TGS-CE, Operation Manual

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Revision 5 15 August 2021
photometer which uses narrow band optical filters. The conventional photometer measures only
a few discrete wavelengths, and spectrometers having lower resolution and fewer elements in
the detector are also less precise.
If, as is frequently the case, more than one of the sulfur-containing compounds indicated above
are present, their spectra will overlap. The system uses a deconvolution protocol to separate
the signals for each component via a multi component algorithm known as the calibration
matrix .
1.3 Analyzer Design
The Model 943-TGS-CE Analyzer System consists of two separate assemblies. :
1. An
oven cabinet
which contains the sample handling system and associated
hardware (i.e., solenoids, oven, heaters, etc.). All electrical equipment residing in the
oven cabinet is installed using appropriate explosion proof and/or intrinsically safe
wiring methods.
2. A control cabinet which contains the electrical hardware necessary for the operation
of the analyzer. Under normal operating circumstances, the interior of the control
cabinet maintains a general-purpose area classification through the use of a positive
pressure Type X purge system. If positive purge pressure is lost, the purge system will
automatically cut power to the analyzer control cabinet, and the analyzer will shut
down. Temperature control for the control cabinet is provided by an instrument air-
driven Vortec vortex cooler.
All connections passing from the control cabinet to the oven cabinet are via gas-tight bulkhead
connections to prevent any process gases from passing from the oven cabinet into the control
cabinet.
An external keypad is provided for navigation of the analyzer’s user interface and for
modification of analyzer operating parameters. This keypad is connected to a USB port on the
outer left wall of the control cabinet.
The Model 943-TGS-CE uses an all-electric heating system for the measurement cell block and
the associated sample handling system.
A drawing of the Model 943-TGS-CE is shown in Figure 1. The oven cabinet is shown from both
front and side views in this drawing.