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To increase the service life of wearing parts (O-rings, seals,
etc.) it is advisable to always work with a water template.
Generally, the test sample must be selected so that the tempe-
rature elevation during the measurement is below 10 K and
the temperature increase of the calibration comes close (max.
energy input: 40,000 J). Such exposure may damage the
calorimeter.
When exceeding the maximum energy input is recommended
to return the calorimeter.
To determine the potential energy initially very small sample
weights (approx. 0.2g) must be chosen when working with
unknown substances. If you burn unknown samples, leave
the room or keep your distance from the calorimeter.
If distilled water or solutions presented in the decomposition
vessel during the combustion experiment, the calibration
with the same template must have been performed before.
Close the calorimeter
After the sample is loaded and the contact with the ignition wire
is present and the inner vessel was placed, the calorimeter is
sealed.
The following screen informs the user whether the system is
closed properly and securely.
Are combustion vessel and the complete system properly closed,
the measurement starts automatically.
Note:
Can the inner container and / or closure ring with handle heavy
wire, please follow the instructions for oiling the seals!
2. Weigh the substance with an accuracy of 0.1 mg directly into
the crucible.
Where appropriate distilled water or a solution must be
presented in the inner vessel.
The input of the maximum possible sample weight is limited to a
maximum of 5 g.
1. Attach with a loop a cotton thread centered on the ignition
wire (at the open calorimeter).
The inner container base remains in the control of sample prepara-
tion in the calorimeter. But you can also use it by pulling it out
individually, or for consequential - Analysis - determinations, refer
to the closed inner container.
The following preparations must be made to prepare the system
for a measurement:
Preparing a measurement
C 6 Quartz crucible
h
Impression for distilled water or a
solution as a template
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