Gas Thermocouple Views

General Goods

Thermocouples are suitable for measuring over a large temperature range, up to 2300 °C. They are less suitable for applications where smaller temperature differences need to be measured with high accuracy, for example the range 0–100 °C with 0.1 °C accuracy. For such applications thermistors and resistance temperature detectors are more suitable. Applications include temperature measurement for kilns, gas turbine exhaust, diesel engines, and other industrial processes.

Out of concern for energy wasted by the standing pilot, designers of many newer appliances have switched to an electronically controlled pilot-less ignition, also called intermittent ignition. With no standing pilot flame, there is no risk of gas buildup should the flame go out, so these appliances do not need thermocouple-based pilot safety switches. As these designs lose the benefit of operation without a continuous source of electricity, standing pilots are still used in some appliances. The exception is later model instantaneous water heaters that use the flow of water to generate the current required to ignite the gas burner, in conjunction with a thermocouple as a safety cut-off device in the event the gas fails to ignite, or the flame is extinguished.

Features Worldwide standard for protecting Claus Thermal Reaction Furnaces. ATEX Compliant flameproof design Maintenance free Remains accurate under extreme conditions. Protects and extends the useful life of refractory and improves reactor up-time. Over 30 years of proven results in installations worldwide. Keeps working accurately in sulfur service long after other thermocouple designs and infrared devices fail or become inaccurate. Safe; triple sealed; block valve optional. Accuracy is continuously verified; self-diagnostic. Optional integral refractory dry out thermocouple reads accurately to 1gdeg;F (0.6adeg;C). Also used in process incinerators, POX units, and coal gasifiers. Why HTX?

The Type HTX Thermocouple is designed to measure high temperatures under the extremely severe conditions of a Claus Thermal Reaction Furnace. The atmospheres to be measured may contain hydrogen, sulfur, sulfur oxides, chlorides, acid gases, etc. Operating temperatures may be in excess of 3000.deg;F and under pressure. The HTX is designed to withstand the vibration and shifting refractory normally encountered in the Claus Furnace.