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Pyromation Corporation

BEYOND MEASURE

Available at Murray Energy - Texas

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Pyromation began operations in 1962 and is one of the leading manufacturers of thermocouples, RTDs, PT100s and thermowells in North America. As an ISO 9001-registered company, Advanced Manufacturing Firm and Lean enterprise with an onsite NVLAP-Accredited Metrology Laboratory (Lab Code 200502-0), the Fort Wayne, IN-based operation's team members are invested in providing the best solution for each customer's application. Pyromation produces a variety of temperature sensors and assemblies in both standard and custom designs, which can be found on equipment and in process applications in the chemical, petrochemical, power generation, food & beverage, dairy, plastics, heat-treating, oil & gas, pharmaceutical, aerospace, biomass, metal processing, rubber, mining, HVAC, water & wastewater, incineration and many other industries in North America and around the world.

PYRMOATION FEATURED PRODUCT

BI-METAL THERMOMETERS

Pyromation now carries a line of general-purpose and CIP sanitary bi-metal thermometers. These bi-metal thermometers measure the temperature of a material within a process piping system, tank, vessel or other application that requires a local indication or reading. The easy-to-read dials are offered with Fahrenheit only, Celsius only or combined Fahrenheit/Celsius options in three, four and five inch diameters.

 

The diverse line includes back-connected, side-connected and adjustable-angle connected assemblies with a variety of connection options. Bi-metal thermometers are available as stand-alone units or with thermowells. This line is competitively priced and standard orders can ship within five to seven days. 

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LEARN MORE

THERMOCOUPLES

TYPE K THERMOCOUPLE

Alloy Combination: Chromel®/Alumel® Temp. Range: (0 to 1260) °C [32 to 2300] °F

Type K thermocouples are recommended for continuous oxidizing or neutral atmospheres and are mostly used above 538 °C [1000 °F]. They are subject to failure if exposed to sulphur. Preferential oxidation of chromium in positive leg at certain low oxygen concentrations causes 'green rot' and large negative calibration drifts most serious in the (816 to 1038) °C [1500 to 1900] °F range. Ventilation or inert-sealing of the protection tube can prevent these issues.

TYPE J THERMOCOUPLE

Alloy Combination: Iron/Constantan Temp. Range: (0 to 760) °C [32 to 1400] °F

The type J thermocouple is suitable for vacuum, reducing, or inert atmospheres, oxidizing atmosphere with reduced life. Iron oxidizes rapidly above 538 °C [1000 °F], so only heavy gauge wire is recommended for high temperature applications. Bare elements should not be exposed to sulphurous atmospheres above 538 °C [1000 °F].

TYPE T THERMOCOUPLE

Alloy Combination: Copper/Constantan Temp. Range: (-200 to 370) °C [-328 to 700] °F

Type T thermocouples can be used in oxidizing, reducing, or inert atmospheres as well as vacuum conditions. They are not subject to corrosion in moist atmospheres.

TYPE E THERMOCOUPLE

Alloy Combination: Chromel®/Constantan Temp. Range: (0 to 870) °C [32 to 1600] °F

Type E thermocouples are recommended for continuously oxidizing or inert atmospheres. Sub-zero limits of error are not established. This type has the highest thermoelectric output of common calibrations.

TYPE N THERMOCOUPLE

Alloy Combination: Nicrosil®/Nisil® Temp. Range: (0 to 1260) °C [32 to 2300] °F

Type N thermocouples can be used in applications where Type K elements have a shorter life and stability problems due to oxidation and the development of 'green rot'.

TYPE S THERMOCOUPLE & TYPE R THERMOCOUPLE

Type S Alloy Combination: Platinum/Platinum (10% Rhodium)

Type R Alloy Combination: Platinum/Platinum (13% Rhodium)

Temp. Range: (538 to 1481) °C [1000 to 2700] °F

Type S and Type R thermocouples are obviously very similar. They are both recommended for high temperature applications and must be protected with a non-metallic protection tube and ceramic insulators. Continued high temperature usage causes grain growth, which can lead to mechanical failure. Negative calibration drift can be caused by Rhodium diffusion to the pure leg as well as from Rhodium volatilization. The type R thermocouple is used in industry whereas type S is used in the laboratory.

TYPE B THERMOCOUPLE

Alloy Combination: Platinum (6% Rhodium)/Platinum (30% Rhodium)

Temp. Range: (871 to 1704) °C [1600 to 3100] °F

The type B thermocouple is very similar to type R and type S, but the output is lower. It is also less susceptible to grain growth and drift.

RTD'S

Resistance temperature detectors (RTDs), also known as resistance thermometers, accurately sense process temperatures with an excellent degree of repeatability and interchangeability of elements. The RTD is composed of certain metallic elements whose change in resistance is a function of temperature. In operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration. The RTD measurement element is manufactured by winding a wire (wire wound elements) or plating a film (thin film elements) on a ceramic or glass core and sealing the element within a ceramic or glass capsule.

Since most resistance temperature detectors and resistance thermometers have a low initial resistance, often 100 ohms, and have a small change in resistance per unit of temperature range, the resistance of the lead wire is often compensated for with a three or four wire bridge configuration built into the measuring devices. By selecting the proper elements and protective sheathing, RTDs can operate in a temperature range of (-200 to 600) °C [-328 to 1112] °F.

Pyromation manufactures resistance temperature detectors and resistance thermometers for many industry applications. From single- or dual-element RTDs, PT100s-PT1000s, to Sanitary CIP configurations, we have the right RTD type for your job. If what you need is not available from our catalog, our product engineers will design an RTD measurement device for your specific application, including temperature sensor assemblies that require connection heads, thermowells and/or transmitters.

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THERMOWELLS

A thermowell is a pressure-tight receptacle that protects and extends the life of a temperature sensor in processing applications where the sensor is not mechanically or chemically compatible with the process environment. Installed directly into piping systems, thermowells facilitate sensor replacement in high pressure pipelines and eliminate the need to interrupt the process flow or drain the process system for sensor maintenance functions. The use of standardized thermowells permits simple relocation of sensors throughout a plant.

Pyromation produces thermowells that have a proven track record in a wide range of industries and applications. Our product line includes threaded, Van Stone, socket-weld, weld-in and flanged thermowells. Thermowells are available as separate components or as a part of complete temperature sensor assemblies.

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TRANSMITTERS

SERIES 642 HART® FIELD TEMPERATURE THERMOCOUPLE/RTD TRANSMITTER

The Series 642 programmable HART® field temperature transmitter is a two-wire transmitter with analog output. It has measurement input for resistance thermometers (RTDs) in 2, 3, or 4-wire connections, thermocouples, and voltage signals. The transmitter is available with or without a digital display. The unit can be programmed with a PC or a HART® protocol handheld terminal. The backlit LC display indicates the current measured value numerically and as a bar graph with limit value violation indicator. The Series 642 is approved by FM and CSA for Intrinsically Safe and Non-Incendive applications. It is available in General-Purpose or Explosion-Proof aluminum housings.

SERIES 442 HART® PROGRAMMABLE THERMOCOUPLE/RTD TRANSMITTER

The Series 442 programmable HART® temperature transmitter is a two-wire transmitter with an analog output. It has measurement input for resistance thermometers (RTDs) in 2, 3, or 4-wire connections, thermocouples, and voltage signals. The transmitter can be programmed with a PC or HART® protocol hand-held terminal. These small units can be mounted in Pyromation DIN (Form B) connection heads, or they can be used for surface mounting using a 35 mm DIN-rail mounting clip.

SERIES 441 PROGRAMMABLE THERMOCOUPLE/RTD TRANSMITTER

The Series 441 programmable RTD/thermocouple temperature transmitter is a two-wire transmitter with an analog output. It has measurement input for resistance thermometers (RTDs) in 2, 3 or 4 wire connections, thermocouples, and voltage signals. Setting up of the transmitter is done using the communication cable. These small units can be mounted in Pyromation DIN (Form B) connection heads or they can be used for surface mounting using a 35 mm DIN rail mounting clip.

SERIES 440 PROGRAMMABLE RTD TRANSMITTER

The Series 440 programmable RTD temperature transmitter is a two-wire transmitter with an analog output. It has measurement input for Pt100 resistance thermometers (RTDs) in 2 or 3 wire connections. Setting up of the transmitter is done using the communication cable. These small units can be mounted in Pyromation connection heads or they can be used for surface mounting using a 35 mm DIN rail mounting clip.

SERIES 450 - M12 PROGRAMMABLE INTEGRAL TEMPERATURE TRANSMITTER

The Series 450 Programmable Integral Temperature Transmitter is ideal for monitoring temperature in highly moist or corrosive environments and in small areas such as pipes and tanks. The unit consists of a 4-wire Pt100 RTD sensor, built-in (4 to 20) mA transmitter, and process connection. The integral design eliminates all external screw connections, simplifying the electrical installation process and solving the problems caused by moisture, loose connections, and corrosion. A "quick disconnect" M12 plug adapter connects the transmitter to a PC for ease of calibration, re-programming, and wiring accuracy.

SERIES T82 PROGRAMMABLE HART® THERMOCOUPLE/RTD TEMPERATURE TRANSMITTER

The T82 programmable HART® field temperature transmitter is a 2-wire unit with analog output. It includes input for RTDs: resistance inputs in 2-wire, 3-wire, and 4-wire connections; thermocouples and voltage signals. The transmitter can be supplied with or without a digital display, in a general-purpose aluminum screw-cover housing. The T82 can be programmed using a HART® protocol handheld terminal. When supplied with a digital display, the LCD display shows the current measured value. When specified, the T82 transmitter is available with an optional Safety Integrity Level Rating (SIL) for critical applications.

SERIES 662 PROGRAMMABLE HART® DUAL INPUT FIELD THERMOCOUPLE/RTD TEMPERATURE TRANSMITTER

The Series 662 programmable dual input HART® field temperature transmitter is a 2-wire unit with analog output. It includes input for RTDs; resistance inputs in 2-wire, 3-wire, and 4-wire connections; thermocouples and voltage signals. The transmitter can be supplied with or without a digital display, in either a general-purpose aluminum housing, or explosion-proof aluminum housing. The Series 662 can be programmed with a PC or a HART® protocol handheld terminal. When supplied with a digital display, the LC screen shows the current measured value and a bar graph with limit value violation indicator.

TRANSCOMM LIGHT: THERMOCOUPLE & RTD TEMPERATURE TRANSMITTER PROGRAMMING SOFTWARE

All Pyromation RTD temperature and thermocouple transmitters are programmable using the TransComm Light downloadable software package. Once you install this software on your computer, the instructions will guide you through the signal programming set-up, including HART® protocol when applicable, for various types of Pyromation temperature transmitters.

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CONNECTION HEADS

Thermocouple and RTD connection heads provide a protected, clean area for mounting a terminal block or transmitter as part of the transition from temperature sensor assembly to lead wire.

As a full-line manufacturer, Pyromation produces its own design-patented connection heads for its temperature sensor assemblies and other applications. The product line includes General-Purpose (GP) aluminum, plastic, stainless steel and cast iron connection heads, with NEMA 4X ratings for indoor or outdoor use. Pyromation's re-designed explosion-proof (XP), aluminum and stainless steel thermocouple and RTD connection heads are approved as individual components or as part of temperature sensing assemblies used in hazardous locations. Most of the line consists of screw-cover connection heads; however, the company also carries a flip-top aluminum head for easy-access, and a miniature-style connection head. Our thermocouple and RTD connection heads are designed to accommodate most terminal blocks and transmitters, including DIN Form B types. Specifications, ratings and drawings for each connection head are located in the designated catalog pages (see links to pages below).

As an added benefit, Pyromation provides private brand labeling of its thermocouple and RTD heads upon request. Connection heads are available as separate components or as a part of complete temperature sensor assemblies.

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WIRE

Thermocouple grade wire is used in construction of a thermocouple temperature sensor. Thermocouple extension wire is used to carry the signal from the thermocouple sensor to the readout device while maintaining a high degree of accuracy. The extension wire material must match the material used in the positive and negative leg of the thermocouple type (e.g. type K) being used in the application. If a transmitter is installed within the thermocouple sensor assembly, copper wire is typically used in place of thermocouple extension wire to send the scalable (4 to 20) mA signal back to the process control equipment.

RTD sensors use ordinary copper instrumentation cable to send the resistance signal back to the recording, readout or control device. If a transmitter is installed within the RTD sensor assembly, copper wire is typically used to send the scalable (4 to 20) mA signal back to the process control equipment.

Pyromation stocks and sells a variety of sizes and gauges of thermocouple grade and extension wire, as well as wire insulators. We also offer special construction thermocouple wire and RTD cable, including multi-pair thermocouple extension wire.

Thermocouple and extension wires are generally ordered and specified by ASTM/ANSI designations for calibration.

Popular generic and trade name examples are:

  • Chromel®/Alumel® - ASTM/ANSI Type K

  • Iron/Constantan - ASTM/ANSI Type J

  • Copper/Constantan - ASTM/ANSI Type T

  • Chromel®/Constantan - ASTM/ANSI Type E

  • Nicrosil®/Nisil® - ASTM/ANSI Type N

  • Platinum/Platinum (10% Rhodium) - ASTM/ANSI Type S

  • Platinum/Platinum (13% Rhodium) - ASTM/ANSI Type R

  • Platinum (6% Rhodium)/Platinum (30% Rhodium) - ASTM/ANSI Type B

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