Design Features
Parr Fixed Bomb and Bucket
Technology
Precise Electronic Thermometry
Temperatures are measured with a high precision
electronic thermometer using a specially designed thermistor sensor sealed in a
stainless steel probe which is fixed in the calorimeter cover. Measurements are
taken with 0.0001° resolution over a 20° to 40°C working range,
with all readings shown in Celsius.
Effective Thermal Jacketing
Outstanding thermal jacketing is provided by a
circulating water system driven by a built-in, high capacity pump which
maintains a continuous forced flow around the sides and bottom of the bucket
chamber and through the cover as well. The jacket temperature is held constant
for isoperibol operation and no water additions or waiting periods are required
at the end of a run. A sealed immersion heater and a built-in heat exchanger,
both operated by the calorimeter controller, provide precise jacket temperature
control.
A Reliable Oxygen
Bomb
The Parr 1108 Oxygen Bomb furnished with the calorimeter
will safely burn samples liberating up to 8000 calories per charge, using
oxygen charging pressures up to 40 atm. An alternate 1108CL bomb with superior
resistance to chlorine and halogen acids is recommended for tests involving
waste material and chlorinated samples.
Download
1108 bomb manual (click on text)
A Built-In Oxygen Filling
System
To speed and simplify the bomb filling operation, the
6200 Calorimeter has a semi-automatic system for charging the bomb with oxygen.
Oxygen from a 1A commercial cylinder is connected to a microprocessor
controlled solenoid installed in the calorimeter. To fill the bomb, the
operator simply slips the filling hose connector onto the bomb inlet valve and
pushes the touch screen to start the filling sequence. Filling then proceeds
automatically at a controlled rate to a pre-set pressure.
Automatic Standardization
The 6200 Calorimeter will automatically generate its
energy equivalent (EE) value from a series of standardization tests,
calculating a mean value from an operator defined number of the last
standardization tests for each bomb/ bucket combination. The default number of
tests is 10 as specified by ASTM and international methods. The user can enter
the maximum standard deviation he will accept and the calorimeter will advise
him if his tests fail to meet this criteria. Energy equivalent values for up to
four bomb/bucket combinations can be stored in the computer.
Accessories for the 6200 Calorimeter
1757 Printer
The 1757 printer operating results and operator
messages are displayed clearly on the touch screen for review and action. Many
users who connect their calorimeter to a computer will choose to print their
results from their computer and will not need a dedicated printer for their
calorimeter. For users who prefer to have a dedicated printer at the
calorimeter, Parr offers the compact model 1757 Printer. The printer port can
be configured to work with many other printers with serial communications that
the user may choose. The 1757 printer is a compact, dot matrix printer setup
for 40- character/line reports. It is the default printer for the 6200
calorimeter. It is housed in a separate 5.5 inches wide, 9 inches deep and 7
inches high. It has its own power cord that connects to a standard AC wall
outlet.
6510 Water Handling
System
For users who wish to operate their 6200 Calorimeter on
a closed loop system, the 6510 Water Handling System incorporates a precision
pipette for measuring and delivering the water for the calorimeter bucket at
the same fixed temperature for each test. This water handling system
incorporates a built-in, compact, solid-state water chiller. As a result, no
external water chiller is required. It also provides cooling water to the
jacket of the 6200
6262 Conversion Kit (For small
samples on milligram scales)
To convert the 6200 Isoperibol Calorimeter or for use
with an 1109A Semi-micro Calorimeter, Parr Instrument Company offers this bomb
as part of conversion kit 6269A. The conversion kit includes:
- 1109A Semi-micro Bomb
- Twin-chambered Bucket
- Support Stand and Head Fixture
- Service Fixture
- 6009, 500 Firings Kit
- Miscellaneous Accessories such as 0.2g, Benzoic Acid
Pellets and Fuse Wire
For further information and prices, please
click here.
Please also visit the Parr Website for further
information:
