Thermocouple Configuration

1. 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.

2. Junction

Tip Style:		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:

3. Element Type

Select One:

Up to three separate thermocouples in a single sheath.
Separate ungrounded junctions can be wired to different instruments.

4. Sheath Operating Temperature

Select One:

The maximum temperature of the application affects the
calibration, size (diameter) and material of the sensor we select.

5. 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.

6. 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.

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:		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:

9. Leadwire Gauge

Select One:

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:		The type of termination selected may be restricted by the wire gauge.
For Plugs and Jacks Only:
Temperature:
Clamp:

12. 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:

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.

15. Bend Angle

Select One:

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.

Part Number Scale

				1	2	3			4	5	6		7	8	9		10	11		12	13		14	15	16
T	L	N	–	–	–	–	A	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–