Insertion thermocouple probes are used to monitor internal temperatures of meat, fish, poultry, dough, and other food products, both fresh and slightly frozen varieties. Other uses include penetration of soft process materials such as rubber and plastic compounds. The materials of construction are all FDA compliant for use in sanitary applications. The sheaths are made of full hard-drawn 304SS hypodermic tubing with a sharp needle-point insertion tip. Several varieties of handles, leadwire, and termination configurations are available. Probes are supplied with grounded hot junctions unless otherwise specified and are rated to 200 ºC (392 ºF) maximum temperature limit.
Thermocouple spring-Loaded Replacement elements are designed for spring-loaded thermowell assemblies. The replacement elements can be ordered by selecting the sensor type below and inserting the "X" length in table 2-0. The MgO-insulated thermocouple assemblies are supplied with a 316 stainless steel sheath, various calibrations, and as standard limits of error.
MgO Insulated Thermocouples with Extension Leadwire. MgO Insulated Thermocouples with Sheath Terminations.
A Pyromation MgO thermocouple assembly consists of a thermocouple element swaged in hard-packed, standard-purity (96 %) Magnesium Oxide mineral insulation and encased in a metal sheath. Thermocouple sheaths have been fully annealed; they can be formed into many configurations, and can be bent into a radius of twice the size of its outer sheath. The tables found on this page and the following pages allow customer selection of standard thermocouple types, sheath diameters, mounting fittings and terminations. Custom built products are available upon request.
The thermocouples listed below are designed for a broad range of uses in applications that require resistance to corrosion and chemical attack. They provide very good temperature measurement and service life in plating, pickling, and acid bath applications. The fluoropolymer assemblies provide excellent resistance to strong acids, alkalines, and saline solutions.
The sensing elements listed on this page can be cut to any desired length over 3" long by using an ordinary tubing cutter. All sheaths are provided in 316 stainless steel.
The replaceable element Heat-Tracing thermocouple assemblies are made for use in systems that measure the surface temperature of process pipe that is carrying products whose temperatures must be controlled to prevent freeze-up, or to maintain a viscosity level so that the inner medium will flow. The RHT thermocouple assembly allows the sensing element to be easily removed and replaced without removing insulation, or disassembling the sensor from the piping system. These assemblies are offered in a variety of calibration types and are supplied with fiberglass insulated conductors, a 316SS sheath, and a 3/4" radius stainless steel mounting pad.
Fixed-Sheath Thermocouple Assemblies with miniature connection heads are offered with mounting fittings that are welded or brazed to the sheath for direct immersion into a process. The miniature heads offer a compact design and are ideal for laboratory applications or applications where space is limited. The MgO-insulated thermocouple assemblies are offered in a variety of calibrations, sheath diameters, and sheath materials.
Flame-Proof Heat-Tracing thermocouple assemblies are made for use in IEC hazardous areas. They are designed to extinguish flames inside the device, eliminating the potential for ignition of flammable mixtures in the surrounding atmosphere. They are typically used in systems that measure the surface temperature of process pipe that is carrying products whose temperatures must be controlled to prevent freeze-up, or to maintain a viscosity level so that the inner medium will flow. ATEX and IECEx certified assemblies are rated for Ex db IIC Gb and Ex tb IIIC Db locations for applications with process temperatures of 180 ºC or less. These thermocouples are offered in a variety of temperature ranges and are supplied with a 316SS sheath, and a 3/4" radius stainless steel mounting pad.
Hazardous location certified Heat-Tracing Thermocouple assemblies are designed for use in systems that measure the surface temperature of process pipe that is carrying products whose temperatures must be controlled to prevent freeze-up, or to maintain a viscosity level so that the inner medium will flow. These products are CSA Certified for use in US and Canada hazardous locations designated: Class I, Division 2, Group A,B,C,D; Class II, Division 2, Group F,G; Class III; and USA: Class I, Zone 2, Group IIC; Zone 22, Group IIIB; Zone 22, Group IIIC; T6…T1: with non-incendive field wiring, Ingress Protection: IP66, Type 4X. The service temperature range for Certified Assemblies is limited to -25 ºC to 435 ºC and the T-code corresponds to the higher of ambient or process temperature. These Thermocouples are offered in a variety of temperature ranges and are supplied with a 316SS sheath, and a 3/4" radius stainless steel mounting pad.
Hazardous location certified Remote-mounted thermocouple sensor assemblies are designed for applications where space is limited, or where high ambient temperatures or excessive heat conduction exists. These products are CSA Certified for use in US and Canada hazardous locations designated: Class I, Division 2, Group A,B,C,D; Class II, Division 2, Group F,G; Class III; and USA: Class I, Zone 2, Group IIC; Zone 22, Group IIIB; Zone 22, Group IIIC; T6…T1: with non-incendive field wiring, Ingress Protection: IP56, Type 4X. The service temperature range for Certified Assemblies is limited to -25°C to 435°C and the T-code corresponds to the higher of ambient or process temperature. They are available in a variety of thermocouple types, sheath diameters, sheath materials, process connections, and head options. They are also available with a variety of optional head-mounted temperature transmitters. Total sensor length cannot exceed 25 feet.
These sensors are the most common of the exhaust engine sensor family. Construction features include heavily- protected leads, a 3/8" O.D. 316 stainless steel sheath, bend options, protective conduit extensions and a variety of termination options.
The miniature sensors are designed to measure the critical temperature of equipment such as sleeve bearings, thrust bearings, bearing shoes, and various other bearings where temperature is critical to performance. These types of bearings are generally used in the operation of high-speed rotating equipment such as compressors, generators, and turbines. The sensors are typically imbedded or installed beneath the Babbitt layer of the bearing to monitor the temperature, allowing early warning of the breakdown of the lubricants. This early warning allows preventative maintenance to take place before major problems occur.
Remote-mounted thermocouple sensor assemblies are designed for applications where space is limited, or where high ambient temperatures or excessive heat conduction exists. They may also be a good choice for applications where high vibrations exist. They are available in a variety of thermocouple types, sheath diameters, sheath materials, process connections, and head options. These sensors can be mounted into a thermowell with the use of a spring-loaded well fitting, or directly into a process with a welded- or compression-style fitting. They are also available with a variety of optional head-mounted temperature transmitters.
