Parr Instrument 6400 User Manual
Page 5

6400
Calorimeter Instruction Manual
1-2
Purpose
Heats of combustion, as determined in an oxygen bomb calorimeter such as the 6400
Isoperibol Calorimeter, are measured by a substitution procedure in which the heat
obtained from the sample is compared with the heat obtained from a standardizing
material. In this test, a representative sample is burned in a high-pressure oxygen
atmosphere within a metal pressure vessel or “bomb”. The energy released by the
combustion is absorbed within the calorimeter and the resulting temperature change is
recorded.
Explanation of Symbols
I
On position
O
Off position
~
Alternating Current (AC)
This CAUTION symbol may be present on
the Product Instrumentation and literature.
If present on the product, the user must
consult the appropriate part of the
accompanying product literature for more
information.
ATTENTION, Electrostatic Discharge
(ESD) hazards. Observe precautions for
handling electrostatic sensitive devices.
Protective Earth (PE) terminal. Provided
for connection of the protective earth
(green or green/yellow) supply system
conductor.
Chassis Ground. Identifies a connection
to the chassis or frame of the equipment
shall be bonded to Protective Earth at the
source of supply in accordance with
national and local electrical code
requirements.
Earth Ground. Functional earth
connection. NOTE: This connection shall
be bonded to Protective earth at the
source of supply in accordance with
national and local electrical code
requirements.