Concept of Operation
6400
1
9
Dynamic Operation
In its Dynamic Operating Mode, the calorimeter
uses a sophisticated curve matching technique to
compare the temperature rise with a known ther-
mal curve to extrapolate the final temperature rise
without actually waiting for it to develop. Repeated
testing, and over 30 years of routine use in fuel
laboratories, has demonstrated that this technique
can cut the time required for a test by one-half
without significantly affecting the precision of the
calorimeter.
Full Microprocessor Based Process Control
The microprocessor controller in this calorim-
eter has been pre programmed to automatically
prompt the user for all required data and control
input and to:
• Generate all temperature readings in the
calorimeter.
• Monitor jacket as well as bucket temperature.
• Confirm equilibrium conditions.
• Fire the bomb.
• Confirm that ignition has occurred.
• Determine and apply all necessary heat leak
corrections.
• Perform all curve matching and extrapolations
required for dynamic operation.
• Terminate the test when it is complete.
• Monitor the conditions within the calorimeter
and report to the user whenever a sensor or
operating condition is out of normal ranges.
Full Microprocessor Based Data Acquisition
& Handling
In addition to its process control functions, the
microprocessor in the calorimeter has been pre-
programmed to:
• Collect and store all required test data.
• Apply all required corrections for combustion
characteristics.
• Compute and report the heat of combustion for
the sample.
Flexible Programming
The fifth generation software built into this calo-
rimeter and accessed through the screen menus
permit the user to customize the operation of the
calorimeter to meet a wide variety of operating
conditions including:
• A large selection of printing options.
• Choice of accessories and peripheral equipment.
• Multiple options in regard to handling thermo-
chemical corrections.
• Choice of ASTM or ISO correction procedures.
• A variety of memory management and reporting
procedures.
• Complete freedom for reagent concentrations and
calculations.
• Unlimited choice of reporting units.
• Automatic bomb usage monitoring and reporting.
• A choice of Equilibrium or Dynamic test methods.
• Automatic statistical treatment of calibration runs.
• Enhanced testing and trouble shooting procedure.
The 6400 Calorimeter is equipped with a USB
connection plus an Ethernet port for direct commu-
nication with attached peripherals and a computer
or network.
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