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1. Calibration

Select One: Type J Type K Type T Type E Type S Type R Type N Type B Other 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.

2. Junction

Tip Style: Round Tip Flat Tip 118 Deg. Drill Tip Needle Tip Reduced Tip Exposed Tip Tip Styles: The application dictates the choice.   e.g. Fast response time = Exposed Tip. (G)- TC measuring junction is one with the sheath so they have the same electrical potential. (U) – TC measuring junction is insulated from the sheath to eliminate outside electrical interference. Type: Grounded Ungrounded

3. Element Type

Select One: Single Duplex Triplex Up to three separate thermocouples in a single sheath.  Separate ungrounded junctions can be wires to different instruments.

4. Sheath Operating Temperature

Select One: -325 F to 500 F -325 F to 750 F -325 F to 1200 F 32 F to 1650 F 32 F to 2100 F Other The maximum temperature of the application affects the calibration, size (diameter) and material of the sensor we select.

5. Sheath Material

Select One: 304SS 310SS 316SS INCONEL Other 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.

6. Sheath Diameter

Select One: .020" .032" .040" .063" .125" .188" .250" .375" .313" .500" Other 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.

7. 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.

8. Leadwire Construction

Material: Fiberglass Teflon® Kapton Other Know the application atmosphere and limitations – temperature, moisture, corrosion and abrasion.  Flexible wire is available in solid or stranded conductors with many sizes (gauge), insulations and calibrations to meet nearly all applications. Configuration: Solid Conductor Solid Conductor - SS Overbraid Solid Conductor - SS Armor Stranded Conductor Stranded Conductor - SS Overbraid Stranded Conductor - SS Armor

9. Leadwire Gauge

Select One: 26 Gauge 24 Gauge 20 Gauge Other Insulated wire, solid or stranded, in a variety of insulations is carried in the most common sizes from 16 to 24 gauge.

10. Leadwire Length "A"

Enter Inches: There is no limit to the leadwire length however when the distance to the instruments is 150 feet or more a 4-20ma signal conditioner is recommended.

11. Leadwire Terminations

Select One: No Split / No Strip Split Leads Spade Lugs Ring Lugs 1/4 Push-on Bx Connector w/ #8 lugs Std Male Plug Std Female Jack Mini Male Plug Mini Female Jack Other The type of termination selected may be restricted by the wire gauge.   For Plugs and Jacks Only: Temperature: None Std (425 F) Hi (660 F) Ceramic (1200 F) Clamp: Yes No

12. Fittings

Select Type: None Fixed Bayonet Fitting SS Fixed Bushing Steel Fixed Hex Nipple SS Fixed Hex Nipple SS Spring Loaded Fixed Hex Nipple Brass Compression (one time adj.) SS Compression (one time adj.) SS Compression (re-adjustable) Other Fittings of all thread sizes, materials and design are available for most applications.   (For Compression Fittings and Fixed Bushing only) Select NPT: None 1/8" NPT 1/4" NPT 1/2" NPT 3/4" NPT (Fixed Bushing Only)

13. Fitting Location "F"

Enter inches from tip ( "N" for None, "L" for Loose) Measured from the first thread to the tip of the sheath.  Allow for the thread-in insertion length of the fitting when determining location.

14. Special Options

N None W Weld Pad A Special Limits of Error X X-Ray Junction G Shielded Leadwire Y Certificate of Conformance J Teflon Coated Armor 2 High Temp Oxidation Coating I SS ID Tag 3 Test at Process Temp L Mating Connector 4 BX Connector O Seperate Ungrounded Junctions 5 Soak Test P Electro-Etching 8 No Heat Shrink T Teflon Coated 9 No Crimp V Field Cuttable Z Other Q Individual Leadwires (3/8" Strip std)

15. Bend Angle

Select One: None 45 Degree Bend 90 Degree bend Other Mineral insulated thermocouples should not be bent on a radius smaller than twice the outside sheath diameter.

16. 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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