6772
Calorimetric Thermometer Instruction Manual
5-8
•
Process
Sigma:
In relation to calorimetry, sigma is used as the classification of the instrument. The
higher the process sigma the higher the limits for acceptable values for precision
control.
The Process Sigma of the 6772 will depend on the application.
•
Temp. Rise High Warning:
Sets the high warning limit on the bucket temperature rise. A temperature rise higher
than this value will generate a warning message.
•
Temp. Rise Low Warning:
Sets the low warning limit on the bucket temperature rise. A temperature rise lower
than this value will generate a warning message.
Use Bomb:
Displays the bomb number of the bomb currently being used in the Calorimetric
Thermometer and toggles through the four possible bomb numbers.
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 bomb.
Each bomb can be assigned a bomb number if the EE Values are significantly
different. 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.
•
Bomb EE Value. Displays the
calculated EE value.
•
# Runs, EE Val. Displays how many
runs have been used to determine
the EE value.
•
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.
•
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.
