Parr Instrument 6300 - Manual (Page 60)

A
M
ENU
O
PERATING
I
NSTRUCTIONS
P a r r I n s t r u m e n t C o m p a n y 60
chart the value of the Heat of Combustion (HOC) of
the Standard or the Energy Equivalent (EE) depending
on the selection on the Control Chart Parameters menu
(see Calibration Data and Controls menu).
You can display the information used for each test by
selecting the appropriate dot.
Each data point represents a Standardization run used
in the calculation of the EE Value for the Bomb ID
being displayed. The left side of the graph contains the
oldest runs and the right represents the most recent. To
view the run data used for a particular data point, click
on the data point with a stylus and the run data for that
point is displayed.
Bomb 2. Accesses sub-menu, Bomb 2. Provides the
same controls as described for Bomb 1.
Bomb 3. Accesses sub-menu, Bomb 3. Provides the
same controls as described for Bomb 1.
Bomb 4. Accesses sub-menu, Bomb 4. Provides the
same controls as described for Bomb 1.
T
HERMOCHEMICAL
C
ALCULATIONS
M
ENU
The Thermochemical Corrections Menu permits three
types of fixed corrections for standardization (instru-
ment calibration) runs, and the same three types for
determination (test) runs. Pressing the LEFT side of
each key toggles the correction ON or OFF. Press the
RIGHT side of each key to access the specific numeric
dialog box where that fixed value can be set. Each
value entered for these fixed corrections is used in all
C
ALIBRATION
D
ATA AND
C
ONTROLS
M
ENU
(C
ONTINUED
)
Bomb Fire Count. • Displays the current bomb fir-
ing count or the number of times the bomb has
been fired since it was last serviced. When this
count matches the limit set by Bomb Service
Interval (on the Calibration Data and Controls
screen), the user will be informed that the bomb
is ready for service.
Name.
Enables the operator to assign a unique alpha-numeric
label for the bomb ID. The ID can be up to 8 characters.
Protect EE Value:
Toggles between OFF and ON. When set to OFF, the
6300 automatically updates the EE value as new tests
are run. When set to ON, it keeps the EE value pro-
tected, whether it has been revised manually via the
Manual EE Entry key or calculated by the instrument.
Update Statistics:
If the Protect EE Value is set to OFF, pressing this
key will cause the EE Value for this Calorimeter to
be updated using all standardization runs currently in
memory to the limit established in the Calibration Data
and Controls menu. If the Protect EE value is set to
ON, this key is not functional.
Manual EE Entry:
This key allows the user to manually enter an EE or cal-
ibration factor for a given calorimeter ID or bomb head.
If an EE value is manually entered, it is necessary to
turn the Protect EE Value ON in order to prevent this
value from being overwritten by an automatic update.
Print Standardization Runs:
This key will print all of the tests that have been incor-
porated into the calculated EE value. This will be help-
ful in evaluating a series of tests which fail to produce a
satisfactory EE value and relative standard deviation.
Reset Bomb Fire Count:
After bomb service, press this key to reset the fire count
to zero.
Control Chart Plot:
Displays the current standardization runs being used to
calculate the Bomb EE Value. The display will either