Parr Instrument 6400 - Manual (Page 41)

6400
Calorimeter Instruction Manual
5-9
Bomb 1:
Leads to sub-menu, Bomb 1. Displays standardization information for bomb and bucket
combinations. While only one bomb and bucket is installed in the calorimeter at a time, a
spare may be used for servicing and for more rapid turn-around. The respective EE
values for each bomb can be stored in memory.
Note:
For rapid turn around between tests, the user may wish to use an extra
head. Each head should be assigned a bomb ID. On the Data Entry
Controls Menu, set the Prompt for Bomb ID to “ON”.
The following four values are displayed for the Bomb # shown in the title on top of the
screen.
ƒ Bomb EE Value. Displays the calculated EE value.
ƒ # Runs, EE Val. Displays how many runs have been used to determine the EE
value.
ƒ Rel. Std. Dev. Displays the relative standard deviation for the series of tests used
to determine the current EE value in percent of the EE value.
ƒ Bomb Fire Count. Displays the current bomb firing 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.
Protect EE Value:
Toggles between OFF and
ON. When set to OFF, the
6400 automatically updates
the EE value as new tests
are run. When set to ON, it
keeps the EE value
protected, 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 calibration 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.