Very High Temperature Furnace Sensor (VHT)0 pages

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THERMAL i

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Tl/lfo/Tfi/fVlii Data Sheet No 050

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Very High

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Temperature

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Furnace Sensor

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PRODUCT DESCRIPTION

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Very High Temperature

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Furnace Sensor

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Product code :

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VHF

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For continuously high temperatures in excess of 1100°C, types 'R' and 'S'

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thermocouples are used, together with different types of heat resistant

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ceramic protection tubes, dependant on the process media. As with all

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high temperature sensor assemblies, those with long sheath lengths

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should be either independently supported or mounted in a vertical or near

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vertical orientation to resist 'droop'.

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SPECIFICATION

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Outer protection tube

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material:

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Inner protection tube

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Material:

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Support tube :

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Process connection

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Connection head :

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MECHANICAL

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aluminous porcelain, recrystalised alumina,

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silicone carbide and others. Inner and outer

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dimensions to suit.

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aluminous porcelain, recrystalised alumina,

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silicone carbide and others. Inner and outer

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dimensions to suit.

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316 stainless steel, length and diameter to

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suit protection tubes.

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adjustable cast iron flange available if re-

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quired.

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in die-cast aluminium with screw cap and

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retention chain. Cable entry screwed M20.

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Environmental rating to IP65.

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Thermocouple

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Element:

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single or duplex elements, type 'R' (Pt-13%

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Rh/Pt) or type 'S' (Pt-10%Rh/Pt) thermocou-

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ple in 0.35mm, 0.45mm or 0.50mm diameter

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wire. Supported and insulated by aluminous

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porcelain insulators.

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Operating range : 0 to +1700°C (-58 to+3092°F).

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Temperature Transmitter

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A temperature transmitter with a 4 to 20mA output can be supplied in

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place of the connection block for both hazardous and non-hazardous du-

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ties. Other dimensions and tolerances outside the above specifications

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may also be available on application.

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©Thermal Detection 2007

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MJJH

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ISO9002

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Thermal Detection Limited

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Unit 6, Orde Wingate Way

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Primrose Hill Industrial Estate

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Stockton-on-Tees England TS19 0GA

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Tel +44(0) 1642 602878

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Fax +44(0) 1642 618307

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Email tdl@thermal-detection.com

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Website www.thermal-detection.com

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