Parr Instrument 6772 - Manual (Page 22)

6772
Calorimetric Thermometer Instruction Manual
4-2
4. Report. This key is used to access the test results stored in the Calorimetric
Thermometer, to enter thermochemical corrections, and to initiate a report on the display,
printer or attached computer.
5. Help. This key is used to access help screens related to the menu currently displayed on
the touch screen.
6. This key appears in the Escape key location when the main menu is displayed. This
key is used to shut down the calorimeter program before turning off the power.
Programming
The program in the 6772 Calorimetric Thermometer can be extensively modified to tailor the
unit to a wide variety of operating conditions, reporting units, laboratory techniques, available
accessories and communication modes. In addition, the calculations, thermochemical
corrections and reporting modes can be modified to conform to a number of standard test
methods and procedures. Numerous provisions are included to permit the use of other
reagent concentrations, techniques, combustion aids and short cuts appropriate for the
user’s work.
Note:
Changes to the program are made by use of the menu structure. Any of these items can be
individually entered at any time to revise the operating program.
Default Settings
Units are preprogrammed with default settings. See Table 1 for a listing of the factory default
settings. A more in-depth explanation of these parameters is found on the corresponding
parameter group help pages. These default settings remain in effect until changed by the
user. Should the user ever wish to return to the factory default settings, go to the Program
Info and Control Menu, User/Factory Settings, touch Reload Factory Default Settings and
YES. Non-volatile memory is provided to retain any and all operator initiated program
changes; even if power is interrupted or the unit is turned off. If the unit experiences an
intentional or unintentional “Cold Restart”, the controller will return to the last known settings.
The default parameters of the 6772 Calorimetric Thermometer can be changed to guarantee
that the thermometer, when cold restarted, will always be in the desired configuration before
beginning a series of tests. Users who wish to permanently revise their default settings may
do so using the following procedure:
•
Establish the operating parameters to be stored as the user default settings.
• Go to the Program Info and Control Menu, User/ Factory Settings, User Setup ID, and
enter the desired User Setup ID.
• Select Save User Default Settings
To re-load the user default setting, go to the Program Info and Control Page, User/Factory
Settings, Re-load User Default Settings, and YES.
Performing an analysis
Tests can be run in a strictly manual fashion or automatically where the thermometer
sequences the calorimeter through the pre and post periods. The manual sequencing
approach is useful for applications where raw data is logged and subsequently analyzed, off-
line. In the automatic mode, the thermometer fully sequences the test and applies real time