DS3010 TTELEC | Alldatasheet

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Technical content

Metal sheathed cables with thermocouple conductors which are insulated from each other and the sheath by highly compacted magnesium oxide. Conductors are safe from environmental contamination, ductile and highly responsive. The cables are water, oil and gas resistant, extremely robust and are eminently suitable for applications where high or low temperature, corrosion, vibration, pressure and other extreme conditions exist. Advantages

  • Rapid response - due to small thermal capacity of c onductor bead and high thermal conductivity of in sulant
  • Ductile - can be easily bent or formed
  • Completely immune from thermal shock
  • Small overall diameters
  • Very high insulation resistance
  • Unaffected by pressure - can be glanded thr ough bulkheads or pressure vessel walls.
  • Extensive range of diameter, conductor and shea th combinations.
  • Available in simplex or duplex options
  • Can be used in standard units in place of insula ted wire elements. IJ Insulated BJ Bonded EJ Exposed ExJ Extended SJ Skin Pad RJ Reduced Hot End Junctions Plain pot, crimped-on, 7mm Dia - up to 3mm Dia MI Standard plug or socket, round pin, available also in ceramic Plain Pot, for thick wall MI Miniature plug or socket, flat pin Special seals to customer requirements Plain pot, crimped-on, 9.5mm Dia x 25mm Long Plain pot, crimped-on, 11mm Dia - 6mm Dia MI Cold end sealants available to cover temperature range of 105°C - 300°C. High temperatures can be covered with cement type seals. Standard tails are flexible 75mm long with PTFE covering. Special tail wire can be supplied i.e. with fibre glass, PVC, metal braided coverings etc. Threaded pot, crimped-on, 8mm ISO - up to 3mm Dia MI Cold End Terminations DS3010 P age 1 of 2 Product Data Sheet DS3010 Brearley Mineral Insulated Thermocouples Temperature

18/8/1 Stainless Steel / Chrome / Nickel / Titanium Grade 321 Excellent resistance to corrosion. Retaining good ductility in a wide range of industrial applications. Max temperature 800°C TYPE W 25/20 Stainless Steel/Chrome/Nickel Grade 310 Good high temperature corrosion resistance. Suitable for use in sulphur bearing atmospheres but should not be subjected to subsequent manipulations. Max temperature 1100°C TYPE I 76/16/7 Inconel / Nickel / Chrome / Iron type 600 Excellent corrosive and oxidation resistant at elevated temperatures. Should not be used in Sulphur bearing atmospheres above 550°C Max temperature 1100°C TYPE N 84/14/1 Nicrosil / Nickel / Chrome/ Silicon Used with type N conductors for 1200°C plus. High oxidation resistance reduces calibration drift at temperature when used in non-carburising atmospheres. Max temperature 1250°C Standard Metal Sheath Materials Standard Thermocouple Alloy Conductor Types R ecommemded Operating Temperature Code Conduct or Combination Rang e for Conductor Combinations Con tinuous °C Short Term °C K Nick el Chromium vs Nickel Aluminium to +1100 -180 to +1350 T Coppe r vs Constantan -185 t o +300 -250 to +400 J Ir on vs Constantan +20 t o +700 -180 to +750 N Nick el-Chromium-Silicon vs Nickel-Silicon-Magnesium 0 to +1100 0 to +1300 E Nick el Chromium vs Constantan to +800 - T/C Type Cable Diameters (mm) 0.5 1.0 1.5 2.0 3.0 T - S S - S N - I,N I,N I I,N J - S I,S I,S I,S K I,S I,S, W I,S, W,N I,S, W I,S, W,N 4.5 5.5 6.0 10.8 T S - S N I - I,N J I,S - I,S I K I,S, W W I,S, W,N I,W Sheath Diameters How to order Ex ample Conduct or type T ype K Simplex or duplex Simple x Sheath material Shea th diameter 3mm R oute or length of insulation 300mm T ype of hot junction IJ (insulated) Cold end termination 8mm ISO Tail type Fle x PTFE Tail length 75mm Fit tings Br ass Pressure ¼" BSPT With reference to Standard Sheath Materials See above for material type. DS3010 Page 2 of 2

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