ISOTECH Saturn Model 877
Brand :
ISOTECH
Categories :
Secondary Laboratory
The Saturn spherical furnace comprises a number of concentric shells. The outer shell of spun metal is for containment and support.
- Accuracy 0.25°C at 1000°C
- Thermocouple Calibration Furnace to 1300°C
- Central Zone of Zero Heat flux
Specifications
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Model
877
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Power
3kW, 208-240Vac, 50/60Hz 3kW 115Vac, 50/60Hz
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Accuracy
±0.25°C to ±0.1°C at 1000°C (using comparison techniques)
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Dimensions
425mm Diameter, weight 25kgs
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Accessories
877/01 Equalising Block 4 x 8mm + 4 x 6mm i.d. (standard), 877-01S Equalising Block 16 x 6mm (special), 877/01E Equalising Block – other configurations (contact Isotech) – 877/02 Platinum Foil Temperature Barrier.
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How to order
877 Thermocouple Calibration Facility including Standard Equalising Block. Please specify voltage needed.
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Warm-up Times*
1 hour to 700°C 3 hours to 1300°C
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Temperature Range
100°C to 1300°C
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Depth of Immersion
180mm
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Diameter of sensors
4 x 6mm + 4 x 8mm
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Stabilisation Time*
1 hour to ±0.25°C
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Number of Calibration Points
8 as standard, 16 to special requirements
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*these times may increase as the windings age or if the supply voltage is low.
The Saturn spherical furnace comprises a number of concentric shells. The outer shell of spun metal is for containment and support. Inside this is a layer of ceramic fibre. Within the fibre is a ceramic spherical mantle containing the heater windings. In the centre of the furnace is a solid cast ceramic sphere with 8 or 16 tubes, to be used for the thermocouples requiring calibration.
Isotech’s calibration furnace is revolutionary from a number of aspects:
It is spherical, and its design ensures a central zone of constant temperature.
Thermocouples are inserted around the circumference of the furnace. When fully inserted the measuring junctions are within a few millimeters of each other at the centre of the sphere.
Up to 15 thermocouples can be calibrated simultaneously. The accuracy is between ±0.25°C and ±0.1°C at 1000°C.
Larger tube diameters will give larger gradients, as will larger numbers of tubes. The precision of this furnace has previously been achieved only by using heat pipes. Because of the design the price is only one half to one third that of a bath with comparable accuracy and much smaller capacity of calibration.
The use of newly developed modern ceramic materials has enabled high accuracy, low mass and high stability to be obtained. The Saturn system will not contaminate your thermocouples unlike some furnaces that have metal equalising blocks.
