What Is Duplex Thermocouple?
Duplex temperature sensors (dual element thermocouple) consist of a pair of temperature sensors within a single enclosure. For example, a duplex thermocouple would have two pairs of thermocouple conductors in a single sheath. Similarly, a duplex RTD sensor would have two RTD/pt100 elements at its hot end instead of a single element.
The main reason for a dual thermocouple probe configuration is to enable redundancy if one of the sensors fails. Duplex sensors cost more, but certain applications benefit from the redundancy gained. Peak Sensors can make all designs of duplex sensor, both duplex thermocouples and duplex pt100 sensors.
What is the difference between simplex and duplex thermocouple?
Simplex and duplex thermocouples are two types of configurations used in temperature measurement systems. The main difference between them lies in the number of thermocouple elements they contain and how they are wired.
Simplex Thermocouple:
• A simplex thermocouple consists of a single pair of thermocouple wires.
• It typically measures the temperature at a single point.
• Simplex thermocouples are often used in basic temperature measurement applications where only one temperature reading is needed.
Duplex Thermocouple:
• A duplex thermocouple consists of two pairs of thermocouple wires.
• Duplex thermocouples are used for redundancy or to measure temperature at two different points simultaneously.
• They are often employed in critical temperature measurement applications where backup or simultaneous readings are required for safety or control purposes.
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