Alcoaero ThermocoupleIndonesia Industrial Parts

Alcoaero Thermocouple (also called a sensor or probe) is a device formed by the junction between two dissimilar metals, which transforms heat energy into electrical energy.

About Alcoaero Thermocouple

Aviation Exhaust Gas Temperature (EGT)/Turbine Inlet Temperature (TIT) and Cylinder Head Temperature (CHT) systems use thermocouples, lead wires composed of the same two dissimilar metals, and an indicator. Below is an example of an Exhaust Gas Temperature (EGT) thermocouple.

The Products of Alcoaero Thermocouple

CHT Type J

Type J sensors are usually identified by yellow (-) and black (+) wires. A small number of manufacturers use red (-) and white (+) or red (-) and black (+), but yellow and black is considered the industry standard. Type J thermocouples are made of iron and constantan metals. Type J thermocouples are more accurate in lower heat range and are used primarily for CHT instruments.

Features

Backed by an industry leading 5-year warranty
Small element diameter provides for near instantaneous instrument response
Provides sufficient electrical power for Alcor unamplified instruments
Intended for use with Type J CHT instruments and leads
Most engine cylinders require use of Bayonet adaptor, part number 28202, for a secure fit
PMA and FAA approved for all reciprocating powered aircraft
Alcor probes are designed, manufactured, and supported in the U.S.A.

CHT/EGT/TIT Type K

Type K thermocouples are identified by red (-) and yellow (+) wires. Type K thermocouples are made of alumel (red) and chromel (yellow) metals. Type K is the industry standard for EGT/TIT, but some manufacturers spec Type K for use in digital and/or amplified CHT indicators.

Features

Backed by an industry leading 5-year warranty
Small element diameter provides for near instantaneous instrument response
Lead wires are configured in reverse stagger(long red and short yellow)
Intended for use with Type K CHT instruments and leads, typically found in digital systems.
Most engine cylinders require use of Bayonet adaptor, part number 28202 for a secure fit
PMA and FAA approved for all reciprocating powered aircraft
Alcor probes are designed, manufactured, and supported in the U.S.A.

EGT Type E

Type E thermocouples are constructed with red (-) and brown (+) wires. Type E thermocouples are made of chromel and constantan metals. Type E thermocouples are of an older technology and produce twice the millivolts of a Type K system.

Important: Type E and Type K components should not be mixed. Choose based on the type of indicator and leads installed in the aircraft. EGT Type E thermocouples are no longer available. The information contained on this website for Type E thermocouples is for reference only.

Grounded Thermocouples

Wires in the element are welded to each other and the sheath, creating continuity. Grounded thermocouples are the most commonly used in reciprocating aircraft. Alcor offers an industry-leading five-year warranty on grounded thermocouples.

Features

Backed by an industry leading 5-year warranty
Small element diameter provides for near instantaneous instrument response
Provides sufficient electrical power for Alcor unamplified instruments
Built in radiator minimizes the high temperature effects on internal spotweld connections
Intended for use with Type K EGT or TIT instruments and leads
Lead wires are configured in reverse stagger(long red and short yellow)
Accurate to ± 25 degrees at 1500 degrees Fahrenheit
PMA and FAA approved for all reciprocating powered aircraft
Alcor probes are designed, manufactured, and supported in the U.S.A.
Includes hardware kit P/N 38094 (4 ea. washer, nut and screws)

Ungrounded Thermocouples

In an ungrounded thermocouple, wires in the element are welded to each other, but not to the shaft. The thermocouple wire junction is isolated from the rest of the outer sheath and the wires must maintain a certain insulation resistance value to work correctly. This is also referred to as an isolated tip. Therefore, there is no continuity in an ungrounded thermocouple. Alcor offers a one-year warranty on ungrounded thermocouples.

Features

Ungrounded probe designed to reduce electrical “noise” in digital indicators
Small element diameter provides for near instantaneous instrument response
Built in radiator minimizes the high temperature effects on internal spotweld connections
Intended for use with Type K EGT or TIT instruments and leads
Adjustable insertion depth enables a perfect fit
Accurate to ± 25 degrees at 1500 degrees Fahrenheit
PMA and FAA approved for all reciprocating powered aircraft
Alcor probes are designed, manufactured, and supported in the U.S.A.

Read More Articles :