Strathkelvin Instruments }782 User's Guide
5
A full description of the 1302 electrode, including theoretical considerations and details of
care and maintenance, is given in Appendix 8.2.
2.5 Computer Software
The software has been written for Windows, and has been structured so that it is user-
friendly and intuitive in use. The full power of the program is accessible to anyone with
only introductory-level knowledge of Windows. Nevertheless, it has the flexibility and
power typical of Windows programs which may be appreciated by more advanced
Windows users.
From the opening screen you will be offered the choice of either recording an experiment
or of analysing a previously recorded data set. If you choose to record, the screen
changes to the Recording Screen, in the set-up mode. The menus bring up dialog boxes
which allow you to specify the details of the experiment. These details will then be used to
set the axes and scrolling rate and other features of the recording screen. These settings
are saved and many of them will therefore not need to be set up again in subsequent
experiments. The Setup screen is also used for the calibration of the oxygen electrodes.
When recording, traces of the oxygen measurements scroll across the screen, as on a
chart recorder. The menu provides facilities for placing event markers on the screen to
indicate any changes to the preparation, such as the addition of substances to the
respirometer chambers. At the termination of recording, the data file is closed and you
have the option of analysing the data immediately or of doing this at a later date.
To calculate respiration rates or to read oxygen values from the experimental traces, the
data from the experiment are recalled from the data file to an Analysis screen. The traces
can be scrolled across the screen and expanded or contracted on the xor yaxis until the
section of trace which is of interest is optimally displayed. In respiration experiments, the
rate is automatically calculated on the selected section of trace, normalised to biomass if
required, and tabulated with all the experimental details on a Report page. Hard copy of
the results can be printed and/or the results can be exported direct to other Windows
applications.
On-screen Help is always available.
2.6 Product Support
A trouble-shooting section is included in Appendix 8.4 to assist with any problems which
might arise in the use of oxygen electrodes.
For any other problems contact Strathkelvin Instruments directly by e-mail:
2.7 Uses of the 782 System
The 782 has been designed to meet the need for replication of dissolved oxygen
measurement, with provision for up to 2 oxygen electrodes. The main uses of the system
are as follows:
