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Saturn model 877 Iss.08– 08/14
SATURN HIGH TEMPERATURE CALIBRATION FURNACE 100°C TO 1300°C
INTRODUCTION
The Isotech Saturn Furnace has been designed for the accurate calibration of thermocouples over the temperature
range 100°C to 1300°C.
Most high temperature calibration furnaces are no more than specially profiled muffle or tube furnaces in which
thermocouples are placed in parallel tubes. These designs suffer from a number of problems, the major ones being
poor temperature stability and limited access, (usually only 3 or 4 thermocouples can be calibrated at one time).
Isotech's calibration furnace is revolutionary from a number of aspects:-
FEATURES
1.
It is spherical and its design ensures a central zone of constant temperature.
2.
Thermocouples are inserted around the circumference of the furnaces and when fully inserted, the measuring
junctions are within a few millimetres of each other and of the centre of the sphere.
3.
7 to 15 thermocouples can be calibrated simultaneously.
4.
The accuracy (±0.25°C in 1000°C) of the furnace has only previously been achieved by using heat pipes.
5.
Because of the design, the price is only half to one third of a bath with comparable accuracy and much smaller
capacity for calibration.
6.
The temperature of the furnace is controlled from a microprocessor based controller which can incorporate
remote facilities, enabling the furnace temperatures to be pre-programmed from a computer. Thus, totally
automatic calibration becomes possible and easily realizable.
7.
The use of newly developed modern ceramic materials has enabled high accuracy, low mass and high stability
to be obtained.
8.
Each thermocouple is completely isolated in a gas tight closed end tube to prevent any contamination
problems during calibration.
9.
Normally the windings will require replacing after 2 or 4 years of operating (dependant on work cycle) and so
the furnace has been designed with ease of maintenance in mind. A spare set of windings is provided free
with each furnace, as is a comprehensive manual.