Temperature Calibration - Ivoclar Vivadent Programat CS6 Operating Instructions Manual

2.2.4.3 Temperature calibration

The thermocouple and firing chamber of the furnace may be subject to changes which affect the furnace temperature,
depending on the mode of operation and the frequency of use. Conduct the temperature calibration at least once every
six months.
Calibration with the temperature checking rings permits the verification of the temperatures in the temperature range for
crystallization and glazing (UTH) and the temperature range for sintering (MTH). It is not absolutely mandatory that both
temperature ranges are calibrated. If only sinter programs are to be conducted, only the MTH temperature range must be
calibrated. If only glaze and crystallization programs are to be conducted, only the UTH temperature range must be
calibrated. The temperature control rings change their dimensions during calibration due to shrinkage. The shrinkage of the
temperature control rings is decisive for the correction value of the furnace and can be read off the conversion table
(enclosed in the temperature checking set).
For calibration, you need temperature control rings, a measuring device (sliding calipers) and a conversion table (enclosed
in the Temperature Checking Set).
Perform the temperature calibration only when the furnace is cold.
Temperature calibration requires only few steps:
Step 1:
Open temperature calibration
Scroll to page 2 in the home screen and press the
[Temperature calibration] button.
Step 2:
Select calibration range
Select the desired temperature calibration range UTH (temperature
range for crystallization and glazing) or MTH (temperature range for
sintering) by pressing the respective button.
Step 3:
Place temperature control ring
Open the furnace head by pressing the button [Open furnace
head]. Place the temperature control ring UTH or MTH, depending
on the selected temperature calibration range, in the centre of the
sintering table with the imprint facing up.
Always make sure that the correct temperature control ring
UTH or MTH is used. The use of an incorrect temperature
control ring results in damage to the object plate and other
components in the firing chamber.
2. Application
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