Oberon R 426

The Oberon R 426 is a Blackbody furnace using a Sodium heat pipe to ensure exceptionally low temperature gradient along the furnace core. It is ideal for the realization of Aluminium, Silver or Copper ITS-90 Fixed Points.

It may also be used as a Blackbody source of the range 450°C to 1100°C.

The furnace heater is of the non-inductive bird-cage design insulated by twin bore alumina tubes. The heat pipe is designed so that the inner wall is not subject to thermal expansion stresses from the outer wall before the heat pipe reaches conduction temperature. The working fluid is permanently and safely sealed within the plasma-arc welded enclosure.

Key features:

• High temperature Blackbody Fixed Points
• High temperature Blackbody source: 450°C to 1100°C
• Sodium heat pipe
• Emissivity: > 0.995

General specifications

Instrument:

Oberon R 426         High temperature large Blackbody Fixed Points and source, 450°C to 1100°C

Delivered in standard with:

• Cal Notepad software
• Serial communication cable
• User manual
• Traceable certificate

Please specify supply voltage required at the order: 110 V (50/60 Hz) or 230 V (50/60 Hz)

Large Fixed Point cells:

998-06-00D            Aluminium large Fixed Point cell (660.323°C)

998-06-00E             Silver large Fixed Point cell (961.78°C)

998-06-00G            Copper large Fixed Point cell (1084.62°C)

UKAS                    Calibration certificate

NPL                      Calibration certificate

Accessories:

984                       Gas flow system for high temperatures (Aluminium, Silver and Copper cells)

935-14-48               Isolation transformer 230 V / 110 V

935-19-43               Isolation transformer 110 V / 110 V

Packing information:

Size                       410 x 415 x 280 mm

Weight without packing   30.5 kg