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611 Series Thermocouple and Resistance Thermometer assemblies with | |
A Mineral insulated, metal sheathed Thermocouple or a Thermocouple element insulated with re-crystallized Alumina tube fitted into a terminal head & provided with or without head extension, a support tube and Re-crystallized Alumina protecting fitted tube would form a typical assembly for temperature measurements of furnaces, combustion chambers, recuperators & similar applications.
The closed end Protecting tube normally employed is re-crystallized Alumina type 710 containing 99.7% Aluminum Oxide & conforming to Type 999 as per DIN VDE 0355 & can be used for temperatures upto 1700 deg C. These tubes are impervious & are fixed to metallic support tube by means of ceramic to metal cement.
The low cost option is Pythagoras Tubes, Type 610 containing approximately 60% Aluminum Oxeide as per DIN VDE 0335 & can be used for temperatures upto 1400 deg C. The standard execution is with plated CS extension & Aluminum head with conduit entry of 1/2"NPT.
The thermocouple wire size when used as a beaded Thermocouple is 24 AWG (0.51mm) for type R, S & 'B' &14 AWG for all base metal Thermocouples.
| No of elements | |
| Elements | |
| Sheath Diameter for MI/Wire diameter for BE |
Please select sheath diameter if Thermocouple type is MI else select Wire diameter if Thermocouple type is beaded |
| Sheath Material | |
| Head Type | |
| No of entries | |
| Head Assembly | |
| Support Tube | |
| Protecting Tube | |
| Tube dimension | |
| Flange Material | Define any other material and grade |
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Overall/Insertion/Exposed lenghts U mm/inches OL mm/inches |
Define eg 300mm Define eg 600mm |
| Extension Length T mm/inches |
Define 30mm |
| Flange Size |
Select and define size, rating & facing of flange |
| Options |
Select and enter the options required |