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The
Cerix Technology (patented) operates on the principal
that clear quartz glass is an excellent transmitter
of infrared radiation. Infrared is one of the most
efficient and rapid means of transferring heat into
an object.
By placing a clear quartz tube over the heating wire and attaching the thermocouple Type K (NiCr-Ni) in direct contact with the tube, the heat
is rapidly transferred into the thermocouple, and so the temperature
change in the element is closely followed. This assembly of in-built
thermocouple is called the Cerix Thermocouple. This assembly with its same positioned thermocouple junction guarantees reproducible temperature measurements with very little deviation between different elements. Thermocouple Type J (Fe-CuNi) is available on special request (Not Cerix Technology).
This is quite advantageous
to today's production systems which demand increased
temperature control as a way of reducing operating
times and increasing productivity.
In many of today's industrial heating processes some form of temperature control may be required. The parameters for an accurate thermocouple are:
•
RAPID RESPONSE
•
Perfect PROTECTION AGAINST ELECTRICAL INTERFERENCE
• FIXED DISTANCE to the HEAT SOURCE.
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By
using a quartz tube any difficulties with regard
to electrical interference between the heating
wire and the thermocouple are avoided as quartz
is an excellent insulator. With the thermocouple
permanently in contact with the quartz tube,
which is of consistent diameter, the distance
between the thermocouple and the heating wire
is maintained constant for all elements. This
in turn will lead to a consistency in the thermocouple
readings of the ceramic elements.
The Cerix Thermocouple
also gives an enhanced response time as can be
seen from the results shown in the graph. This
shows the difference between the Conventional
Type K thermocouple and the Cerix Type K thermocouple.
As can clearly be seen, the Cerix Thermocouple
has a much faster response time and so gives
a more representative indication of the heating
element temperature.
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Contact Us for
Custom Options and Quantity Discounts |
| Click Here for Applications for Infrared Heaters |
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