Parr Instrument 6400 - Manual (Page 36)

6400
Calorimeter Instruction Manual
5-4
Spiking Correction:
Accesses the Spike Controls sub-menu:
“Spiking” is the addition of material, such as benzoic acid or mineral oil, to samples
which are difficult to burn in order to drive the combustion to completion.
ƒ Use Spiking. When set to ON, the calorimeter will prompt for the
weight of the spike added and will compensate for the heat of
combustion in the
calculations.
ƒ Heat of Combustion of
Spike. The heat of
combustion of spike is
entered on sub-menu
keyboard in cal/g.
ƒ Use Fixed Spike. When
set to ON, a constant
amount of spike is to be
added to each test.
ƒ Weight of Fixed Spike.
The weight of the fixed
spike is entered on sub-menu keyboard.
Note:
The precision of tests with fixed spikes can be no better than the
accuracy of the spike weight.
ƒ Prompt for Spike before Weight. When set to ON, the calorimeter will
prompt the user for the weight of the spike and the weight of the sample.
Normally the calorimeter will prompt the user for the weight of the sample
and then the weight of the spike.
Bomb Rinse Tank Controls:
Accesses the Rinse Tank Controls submenu:
Wash water for the bomb is drawn from the Bomb Rinse Tank.
ƒ Report Rinse Tank Empty. When
turned on the calorimeter will
notify the user when it believes
the rinse tank is empty based
upon capacity of tank and
number of tests.
ƒ Rinse Tank Capacity. Sets the
number of tests available from a
container refill. If the rinse timing
controls have been changed,
then the value must be changed
proportionally.