The Delta Controls Model HTP Thermocouple is designed to measure high temperatures under the extremely severe conditions of a Claus Thermal Reactor. It will do this job reliably and accurately (NIST traceable). It commonly lasts for years without problems. The atmospheres to be measured may contain hydrogen, sulfides, sulfur oxides, chlorides, acid gases, ammonia, etc. Operating temperatures may be in excess of 3000°F and under pressure. The most common application is to protect the refractory in Claus process thermal reactors. Other applications include hydrogen burner systems, water gas generators, coal gassifiers, and various kinds of POX units. The uses include such critical measurements as refractory protection, high temperature shutdown, mixing ratio control, reaction temperature control, etc.

The Delta Controls Model HTX Thermocouple is functionally identical to the model HTP shown above. The HTX flameproof design is ATEX compliant.. The HTX is also PED compliant as a component part of a Category IV Safety Accessory. All Delta Controls literature that references the Model HTP also applies to the HTX.

The Delta Controls Model HIR Infrared Temperature Transmitter "looks" into the Claus reactor and senses the amount and spectrum of the infrared energy being emitted by the refractory hot face. The sensed energy is converted into a signal which accurately displays the refractory operating temperature. The Model HIR is nearly maintenance free; it maintains its sensing lens assembly at a high temperature to avoid sulfur buildup and the need for maintenance. It also uses modern stable electronics which do not require frequent recalibration at the instrument factory or at NIST. The HIR is well suited to applications where the sensor must "look through" flames, incandescent gases, and hot gases to measure the temperature of an object or a refractory hot face. Services include chemical incinerators, process burners, waste destructors,etc.

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