Katanax K2 Prime, Руководство пользователя

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Duration
Step duration (mm : ss) is also adjusted by
pressing on the plus and minus buttons. The
actual step timer will start once the furnace
has reached the temperature set for this step. Hence, the length of a step is
actually the sum of the time required by the furnace to increase up to the step
temperature, plus the duration parameter. For each step, the duration parameter
is limited to 19 minutes and 55 seconds, except if ramping is in use (see below).
Ramping
The ramping parameter determines how fast
the furnace will increase its temperature to
reach the one set in the current step. In most
application, we want the furnace to heat up as
fast as possible, but it is also possible to set this parameter (by pressing on the
plus and minus buttons) to limit the heat-up rate. The other ramping values
(besides Fast) are given in °C/minute.
Slow heat-up rates are particularly useful with a solid oxidizer, when we want it to
react slowly over a temperature range of about 100°C.
Crucible rocking speed and amplitude
The crucible content is mixed by a back-and-
forth rocking motion, whose amplitude (in
degrees) and speed (in % of the max) can be
controlled by means of the plus and minus
buttons.
Typically, initial heating steps call for very
little rocking. This allows for the oxidizer to react, and for flux to melt without
risking overflowing from the crucible (molten flux takes up less volume than
powder flux).
When pouring approaches, speed and amplitude can be used more generously.
One exception would be with samples containing gases. Those samples cause
bubbles in the melt and de-gassing the melt is sometimes better achieved with
very slow speeds before pouring.
Oxygen injection (available in steps 1-3 only)
When the instrument is fitted with the custom-made
oxygen injector manifold, setting this parameter to
“on” will open the solenoid valve for the duration of
the step, thus allowing the oxygen to flow inside the
furnace and help oxidize the sample.
However, by default, this parameter is used to ventilate the furnace cavity by
briefly opening the door every 30 seconds. This is recommended when using
halogen non-wetting agents, which can otherwise damage the instrument.
Non-wetting agent (available in step 4 only)
When this parameter is set to ON, once the furnace
reaches the temperature set for Step 4, the door will