Specifications

About The Maxum II, Continued
The following are new terms that are used in this manual.
Terms
Application refers to the supporting hardware and software required to
perform the analysis. Supporting hardware consists of hardware
channels: detector channel (AI), Solenoid Valve Control Module channel
(AO), Electronic Pressure Control channel (DI), Temperature Controller
(DO). Streams are defined to applications. If there are 3 or 4
simultaneous streams, they are defined as a single group called a
Method. Applications can run only one Method at a time. Two
applications can run if there are two cycle clocks in the Maxum II.
Method is the part of the application that contains the parameters for
controlling the hardware. Methods control the hardware associated with
an Application. The method tells the hardware what to do, and includes
all cycle clock timed events. Methods are defined to streams. That is,
several stream sequences can make up one Method. Methods also
control the integration and calculations of the chromatogram. There is
one cycle clock per method.
With the Maxum II hardware and software, it is possible to take a
complex single-train chromatograph analysis and break it into multiple
simple trains. Each simple train is then run simultaneously – in parallel.
Not only does this procedure simplify the overall analysis, but also it is
performed faster and more reliably.
Parallel
Chromatography
Since the chromatography is broken into parallel operating modules, it is
possible to use standard configurations for common applications. For
example, 95% of the vapor thermal conductivity detector applications in a
typical olefins plant can be done with various combinations of fewer than
12 standard mini-applications. Many of these measurements can be
performed in less than two minutes. Standard application modules and
methods can be taken off-the-shelf and installed in the modular oven
analyzer. These application modules can be configured alone or in any
combination of parallel groups, depending on the measurement
requirements. By using parallel chromatography and application
modules, it is possible to significantly reduce application development.
Standard Configurations
1-16 A5E31405710001