OZONE ANALYZER BMT 964 Manual, Rev. 04/2021
29
ters, properties of the serial interface in User-Mode, characteristics of the carrier gas, date
and time and other parameters (serial number, operating hours etc).
storing of all modifiable charcteristics in files. In order to configure several instruments with
the same set of parameters, only the corresponding file has to be loaded.
recording (logging) of selectable measurement results or parameters (e.g. cuvette dirtyness) in
a file on a PC.
view and printout of all internal system data (e.g. raw data from the A/D-converter, hours
running).
The main screen shows the basic measurement of the ozone content, the pressure measured in-
ternally for compensation and cuvette status. From the View menu, you may choose the Parame-
ter window, which shows all settings of parameters that may be changed, sorted in tabs named
the same as in the front panel menu. As a start, you should check the units used by the analyzer,
and set the time according the local time in your area. This is the time used in the Error- and
Event Log (built-in clock of the BMT 964).
Also in the main menu, you'll find a Monitor window, designed to be enlarged so that you may
view the measurements from distance, and a Diagnostics window, summarizing all raw data
mainly needed for troubleshooting by BMT. Other than that, the Error- and Event Log may be
loaded from the instrument to the screen via the View menu.
The options in the main menu let you set your preferences concerning the program itself, e.g. the
COM port parameters. It also lets you switch on or off the Logger function, which is used to log
measurement data every few seconds into a file.
On some screens, you'll find a print function for two different printouts, one summarizing the
settings and measurement for documentation, one for troubleshooting by BMT. Both should be
faxed to us in case of problems. The printouts include both the Error- and Event Log.
The Save and Load functions in the main menu under File are used to save configurations of the
BMT 964 onto your PC and load it again at a later time. This helps configuring all analyzers the
same in different installations of one project.
For a more detailed description of the software, please refer to the helpfile (bmt964.chm, to be
opened with F1 within the program or double click in the Windows Explorer).
13 Maintenance
Maintenance is limited to a regular check of the sample gas input filter. The pure white material
easily displays any dirt (except it is white). An Allen wrench is provided to open the filter holder.
In case the filter insert has been found to be dirty, it should be replaced (spares are supplied). It is
in the responsibility of the user to define the interval of this check, which of course depends on
the properties of the complete ozone system. It is a good idea to also observe the cuvette dirty
value during evaluation.
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