T5.4 Thermocouple for LM2500

Thermocouple

Also known as:

Exhaust Gas Thermocouple

T5.4 Thermocouple for LM2500

Thermocouple

Also known as:

Exhaust Gas Thermocouple

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2 Weeks

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T5.4 thermocouple measures exhaust gas temperature in LM2500 turbines, providing vital data for engine monitoring.

Executive Summary

The T5.4 thermocouple is a high-performance temperature sensor designed for measuring exhaust gas temperatures in LM2500 gas turbines. Built to withstand extreme heat and vibration, it ensures accurate and reliable data in demanding operating conditions.

This probe can be replaced individually—minimizing downtime and reducing maintenance costs. It offers fast response time, long-term stability, and is commonly used in applications such as turbine exhaust, inlet air, and overheat detection.

Technical Specifications

Application LM Series
Accuracy ±2°F from 32°F to 530°F, ±0.4% from 530°F to 2000°F
Cable/Connector Rating Capable of operating up to 2000°F with consistent results
Environmental Resistance Moisture, contaminant, and corrosion resistant
Conductor Materials Thermocouple alloys, nickel-plated copper alloy, optical fibers
Temperature Range -65°F to 2300°F
Outer Braid Materials Stainless steel, nickel, or inconel (for abrasion protection)
Output Terminals Standard thermocouple alloy stud and nut output terminals
Connector Options Hermetically sealed connector or flexible leads
Probe Design Replaceable probes with separate body and sampling ports

Features and Benefits

  • Excellent long term stability with low drift.
  • Response time 2s or better.
  • Compact sizes and minimized weight.
  • High temperature terminal head capability.
  • Accuracy ±0.4% or better.

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Detailed Description

The T5.4 thermocouple is a temperature-sensing probe used in LM2500 gas turbines to measure exhaust gas temperature (EGT). The label T5.4 refers to its specific position in the turbine\'s exhaust thermocouple array—zone T5 (turbine exhaust), sensor 4. These sensors are part of a system that monitors thermal conditions at multiple points in the exhaust stream.

This thermocouple operates in high-temperature environments, withstanding continuous exposure up to approximately 1100°C. It is built to maintain accuracy and reliability under the thermal stress and vibration typical in gas turbine applications.

T5.4 thermocouples are often used with flexible

harness systems. This allows operators to replace individual probes without removing the entire harness, improving maintenance efficiency and reducing downtime.

By providing real-time exhaust temperature data, the T5.4 thermocouple supports engine control, performance optimization, and safety monitoring in industrial gas turbine operations.

Engineering Data