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1. Connection Head
Select One:  

2. Calibration
Select One: Maximum temperature limits for each ANSI type thermocouple materials are given (see “more info” button), however these will vary depending on sheath materials, application atmospheres, wire gauge size, insulating materials and epoxy composition.

3. Junction
Tip Style: Tip style defines the surface area or shape of the thermocouple sensing tip, i.e. round tip (std), flat tip, drill point tip (118 deg), etc., which is determined by your application process.  The type junction again is determined by the application, i.e., ungrounded for process noise isolation, longer life, whereas, in general a grounded junction provides a compromise between performance (fast response) and thermocouple life.  Each style and type of junction has its advantages and disadvantages see “more info” button for specific information.

4. Element Type
Select One: Up to three separate thermocouples in a single sheath.  Separate ungrounded junctions can be wired to different instruments.

5. Sheath Operating Temperature
Select One: The maximum temperature of the application affects the calibration, size (diameter) and material of the sensor we select.

6. Sheath Material
Select One: The application dictates the choice of sheath materials.  304SS and 316SS are most commonly used but temperatures and corrosive conditions can necessitate the use of other materials.

7. Sheath Diameter
Select One: The Mineral Insulated thermocouples come in a number of sizes but the choice is greatly influenced by the maximum temperature of the application.  For high temp applications bigger is better.

8. Sheath Length "L"
Enter Inches: Although the accuracy of the thermocouple is not affected by the length of the sheath consult the factory when the probe length exceeds 120 inches.

9. Head Mounting Fittings
Select Type: Fittings of all thread sizes, materials and design are available for most applications.
(For Hex Nipple and NPT only)
Select NPT:

10.Sheath Fittings
Select Type: Fittings of all thread sizes, materials and design are available for most applications.
(For Compression Fittings and Fixed Bushing only)
Select NPT:

11. Fitting Location "F"
Enter inches from tip ( "N" for None ) Measured from the first thread to the tip of the sheath.  Allow for the thread-in insertion length of the fitting when determining location.

12. Special Options
N None T Coated Probe
A Special Limits of Error W Weld Pad
D Universal Transmitter X X-Ray Junction
E Economy Multi-Input Transmitter Y Certificate of Conformance
I SS ID Tag 2 High Temp Oxidation Coating
O Seperate Ungrounded Junctions 3 Test at Process Temp
P Electro-etching 5 Soak Test
R Faster Response Construction 7 Rigid Tube Construction
S Spring Loaded Z Other


13. Bend Angle
Select One: Mineral insulated thermocouples should not be bent on a radius smaller than twice the outside sheath diameter.

14. Bend Location "C"
Enter inches from tip ( "N" for None ) There are minimum bend locations for all Mineral Insulated sensors – dependent on sheath diameter.
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