Parr Instrument 6200 - Manual (Page 29)

Corrections & Final Reports
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Corrections & Final Reports
Entering Corrections and Obtaining the
Final Report
Final reports for each test can be obtained whenever
the operator is prepared to enter any required cor-
rections for fuse, acid and sulfur.
When entering corrections, the user can choose
either of two methods. These are:
• Manual Entry
• Fixed Corrections
Program Installation and Control, Chapter 4. pro-
vides the default settings used to setup the method
preferred by the user.
Refer to the Reporting Instructions, Chapter 7, for
the steps necessary to initiate a report from the
controller.
Manual Entry
During the reporting process, the controller will
prompt the user to enter the following values:
Fuse Correction: Key in the Fuse Wire Correction
and press the ENTER key. The default setting for
this value is to be entered in calories. The fuse
correction has two components and these are
explained in Appendix B.
Acid Correction: Key in the Acid Correction and
press the ENTER key. The default setting for this
value is to be entered in milliliters of standard
alkali required to titrate total acid or calories.
Sulfur Correction: Key in the Sulfur Correction
and press the ENTER key. The default setting for
this value is to be entered as percent sulfur in
the sample.
If fixed values for fuse, acid and sulfur are turned
OFF on the Thermochemical Corrections Page, then
the user must manually enter the values at the
prompt.
If values for these corrections are not available, the
operator can use the SKIP key to bypass any of the
corrections. The report will remain at preliminary
status until an entry is made for fuse, acid and
sulfur.
Fixed Corrections
In many cases, fixed values for fuse and acid can be
used without introducing a significant error since
the corrections are both relatively small and con-
stant.
Fixed sulfur corrections can also be used whenever
a series of samples will be tested with a reasonably
constant sulfur content.
Details for applying fixed corrections are found in
Appendix B, Thermochemical Calculations.
Any value set-up as a fixed correction will be auto-
matically applied and the controller will not prompt
the user for this value.