The A200-TCB thermocouples are Type-J ungrounded, fast response CHT thermocouple probe kits. Each kit includes:
- CHT probe with 4′ twisted shielded leads and male shielded thermocouple connector.
- 3/8â€-24 bayonet compression fitting (fits all Lycoming and Continental (excluding O-200 and O-300) engines.
- Female polarized and shielded connector for connection to instrument harness.
Using a 316 stainless steel sheath these probes have been designed and tested for continuous operation exceeding 1150ÂºF! The insulation shield is a non-vitrified high purity magnesium oxide (MgO). Superior resistance to oxidation attack results from a tenacious and protective high temperature film that does not affect the stability of the thermocouple alloys. This film permits the sensor to be used at ultra-high temperatures for prolonged periods with improved accuracy over other available sheath materials.
The probes are supplied with a 90Âº insertion bend but this can be reformed in the field based upon the specific installation. It is then fused to the thermocouple conductor in a precision transition junction that protects the connection under all environmental conditions.
Finally the measured potential is carried to the instrument using high temperature Teflon insulated thermocouple wire that can endure temperatures up to 500ÂºF. The thermocouple wire is encased in a FAR 25 approved Flexo Teflon Â® expandable sleeving which used in electronic and mechanical applications when chemical resistance and very high temperature resistance are significant factors. The properties of Teflon make it the ideal choice for applications where high temperature, low outgassing, flame and chemical resistance are critical.
The connectors have a simple snap connection mechanism that allows easy removal and reattachment while retaining complete junction integrity.
When installed in accordance with the approved instructions and as part of a qualified instrument system, this thermocouple is STC’d as a primary replacement.
For use with all Aerospace Logic cylinder head instruments.
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