Flue Gas Temperature Transmitters

Flue Gas, Temperature TransmittersSensor selection:

Thermistors will not withstand the high flue gas temperatures and can not be used.

RTD's are the most stable and accurate sensors up to 40°C and are normally selected for this range.

Thermocouples are extremely rugged and durable at high temperatures and are the best choice for measurements from 400°C to 1200°C.

We TIG weld the thermocouple junction to the tip of the sheath in order to ensure the fastest possible response time.

We add 2-wire 4-20mA transmitters if your panel will not accept RTD's or thermocouples directly.

Flue Gas Temperature Transmitters- Construction

Our Flue Gas Temperature Transmitters are constructed using the same technique we use in the industrial sensors we supply to power plants and heavy industries. The RTD or thermocouple is embedded in magnesium oxide, packed and sealed within a stainless steel sheath.

Because the sensor is so well protected from shock in this construction, long life is ensured, even under the most severe conditions.

We incorporate a flange in our standard design in order to make mounting easy.

The terminal box containing the transmitter electronics is mounted on a stand-off to minimize heat transfer from the flue gas to the electronics.

The electronics convert the sensor signal to a standard 4 to 20mA 2-wire signal, for simple, economical and reliable wiring over long transmission lines.

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Flue Gas Temperature Transmitters
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