Parr Instrument 6200 - Manual (Page 18)

19
6200
Calorimeter Operating Instruction Manual
Standardizing
the Calorimeter
The calorimeter must be accurately
standardized prior to actually performing
calorimetric tests on sample materials.
Review Appendix C - Standardization, in
order to become familiar with the general
procedure and calculations. The user
should configure the calorimeter at this time
to accommodate the desired sample weight
entry mode. The calorimeter can be placed
into standardization mode on the
Calorimeter Operation Page, with the
operating mode key. If two bombs and
buckets are being used with the calorimeter
to maximize sample throughput, the
calorimeter can be configured to prompt for
a Bomb ID at the start of each test. The
Bomb ID can also be selected on the
Calorimeter Operations Page,
using the Bomb key. All bomb
and bucket combinations will need to be
standardized separately. The end result of a
standardization test is an energy equivalent
value, or the amount of energy required to
raise the temperature of the calorimeter one
degree. Repeated standardization with any
given bomb and bucket combination should
yield an energy equivalent value with a
range of 14 calories per degree, centered
around the mean value for all tests using
that bomb and bucket combination. The
calorimeter is ready for testing samples
after an energy equivalent value has been
obtained.
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