Econox CarboProbe CP Plus Інструкція з використання Посібник з використання - Сторінка 5
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How does the air supply affect the firing?
The right amount of air
will give the hottest flame and the fastest temperature rise. This is the most economical
heating.
Too much air
makes the flame cooler. The flow of excess air can help distribute the heat more
uniformly.
Not enough air
can still give a hot flame and can give interesting special effects in glaze colors.
The benefits of an oxygen probe
Efficient fuel use
To reach the highest temperature with the least fuel, use a neutral flame. The oxygen
probe will tell you if you have a good balance of fuel and air, because the reading will be
in the range of 100mV to 200mV.
Glaze control
Some glaze colors are affected by how heavily reducing the flame is. Sometimes there is
a difference in color between a slightly reducing flame with an oxygen reading of 0.35
and a heavy reduction of 0.6. In a reducing flame, the oxygen reading is usually much
more stable and it is easy to measure the degree of reduction quite accurately. The
potter can record the reduction conditions, then obtain the same glaze colors on later
burns.
How to install the oxygen probe
Fit the probe anywhere in the kiln or furnace where a pyrometer could be fitted. If the
probe is used at temperatures over 1100 degrees C / 2000 degrees F, put it through the
top, so the ceramic tube hangs vertically. If the probe is used horizontally at high
temperatures, it will gradually sag.
Seal the hole for the probe well enough to prevent air from flowing inwards and affecting
the oxygen reading.
When fitting or removing a probe into or out of a hot furnace, move the probe slowly to
prevent thermal shock.
Once the kiln is over 700 °C and the reference air is available, the probe is ready to use.
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