Thermocouples

For low temperature Finishing applications (up to 482°F) such as paint and powder coat curing in the finishing industry, various types of thermocouples are available for either Air or Surface measurement.

The thermocouple construction is designed to withstand rough handling, the type K, PTFE insulated wires are triple wrapped with stainless steel braid, and have a final overall PTFE insulation.

Thermocouples for the finishing industry have a unique design of removable sensor (magnetic and clamp) so that when the insulated cable wears, it can be replaced without the need to buy a complete assembly. This results in significant consumable savings.

Feature benefits:

• Accurate - ANSI MC96.1 ‘Special Limits’ specification (type K), Accuracy +/- 2.0 °F or +/0.4% Temperature reading *
• Robust - PTFE Cable 7 Strand x 0.0079 inch triple wrapped insulation, stainless steel braid, and outer PTFE insulation
• Choice – Different thermocouple fixing methods and cable lengths to suit
• Value - Replaceable thermocouple cable, reducing thermocouple replacement costs for clamp and magnetic thermocouples

(* whichever is greater)

For HACCP cook validation temperature measurement is required generally at the core of the food product. To perform such measurement a needle thermocouple is the optimal design. Needle thermocouples are designed to allow easy quick insertion into the product, offer rapid temperature response characteristics helping provide accurate temperature measurement, run after run. The needle can be supplied with collar options (straight or tapered) to help maintain the thermocouple measurement point in the product during the process run.

Thermocouple needles come in 1.6, 2.4 and 3.9 inch length options to match product type and size to ensure that the sensor is accurately located in the core/cold spot.

• Accurate

Type K – ANSI MC96.1 ‘Special Limits of Error’ 0 to 1250 °C = +/- 2.0 °F or +/- 0.4% *of reading

Type T - IEC EN 60584-2 ‘Class 1’ -40 °F to 257 °F = +/- 0.9 °F, 257 to 662 °F = +/- 0.4% * of reading

(* whichever is greater)

• Robust - Triple wrapped insulation including stainless steel braid and outer PFA insulation fitted with bung to provide thermal barrier IP rating.
• Choice – Different needle sizes (with or without collar) and cable lengths to suit product and cooker
• Calibration - Type K thermocouple options designed so that they can be offered with a thermocouple certificate of calibration

Mineral Insulated Thermocouples (Up to 2372 °F) TC22 & TC34

For high temperature applications (up to 2372°F) PhoenixTM supply a range of mineral insulated thermocouples terminated with a high temperature miniature plug. These thermocouples have an insulated hot junction to ensure maximum protection against electrical interference from heating elements within the furnace.

Diameters of the mineral insulated thermocouples range from 0.06 inch - for general purpose heat treatment applications to 0.12 inch for slab and billet re-heat applications. For thicker 0.12 inch MI thermocouples the thermocouple can be terminated with a PTFE tail to allow easy fitting into the Data Logger installed in the thermal barrier.

• Accurate
  • ANSI MC96.1 ‘Special Limits’ specification (type K), Accuracy +/- 2.0 °F or +/0.4%
• • Option to include AMS2750G and CQI-9 compliant calibration certificate (0.06 inch and 0.08 inch diameter)

• Robust
  • Temperature Up to 1832 °F - High temperature nickel-chromium-iron alloy (HT Alloy - Inconel®) providing resistance to corrosion and heat along with high strength and good workability.
  • Temperatures above 1832 °F - High Temperature alloy (UHT Alloy) thermocouple sheath.
  • High oxidation resistance and strength at temperatures up to 2282 °F.

• Choice
  • MI diameter, length supplied with standard termination in the thermocouple plug or with a PTFE tail.

Glass Fibre Insulated Thermocouples
(482 to 1472 °F) TC67

PhoenixTM supply a range of glass fibre sheathed exposed junction thermocouples terminated with a high temperature plug. This range of thermocouples are perfect for peak temperatures typically ranging from 482 to 1472 °F. The glass fibre insulation provides a thermally stable robust thermocouple, but with flexibility allowing the thermocouple to be handled with ease and allow accurate and repeatable positioning of the exposed hot junction (HJ) at the exact measurement point on the product or in the oven/furnace environment.

• Accurate - ANSI MC96.1 ‘Special Limits’ specification (type K), Accuracy +/- 2.0 °F or +/0.4%.
• Robust – Operate up to 1472 °F where PTFE cables are not an option.
• Flexible - Easy to handle and secure to challenging products such as glass (glass attachment kit option)