Pt100 RTDs, thermocouples, heavy-duty assemblies and smart transmitters that turn a sensor signal into a measurement your control system can rely on for years.
Temperature governs reaction rates, product quality, energy use and equipment life. A drifting sensor rarely fails loudly; it simply makes the process a little worse every day.
We supply complete measuring points: sensor element, thermowell, connection head and transmitter, specified together so the response time, immersion depth and accuracy are right for the duty.
Typical applications
Where it is used
6 options. We recommend the one that suits your application, not the one that happens to be in stock.
Resistance thermometers offer the best accuracy and long-term stability across the range most processes run in. Heavy-duty assemblies cope with vibration and outdoor installation.
Best for
Accurate measurement to moderate temperatures
Rugged, fast and able to reach temperatures far beyond an RTD. The choice for furnaces, kilns, exhausts and burner management.
Best for
High temperatures, fast response
Universal input for RTD, thermocouple, mV and ohm sensors, in single or dual-sensor configuration. Sensor and process diagnostics, IEC 61508 safety certification, dual-compartment housing and a large LCD.
Best for
Process loops and safety functions
Measures process temperature from the pipe surface, without a thermowell or process penetration. No shutdown to install and no leak point.
Best for
Retrofits and hazardous media
Flanged, threaded and welded thermowells sized for the line and checked for flow-induced vibration, so the sensor can be changed without draining the process.
Best for
Pressurised and flowing lines
Digital temperature switches and bimetal or gas-filled gauges for local indication and simple high-temperature protection.
Best for
Local indication and alarms
RTDs for accuracy in the common process range; thermocouples when the temperature climbs beyond it.
Sensor diameter, thermowell design and insertion length set how quickly and truly the reading follows the process.
Transmitter-sensor matching and long-term stability better than ±0.1 % of span per year reduce recalibration.
SIL requirements, intrinsically safe or flameproof protection, and redundancy with dual sensors.
An RTD, such as a Pt100, measures temperature through a change in electrical resistance and offers better accuracy and long-term stability in the range most processes operate in. A thermocouple generates a small voltage, covers much higher temperatures, responds faster and is more rugged, but is less accurate.
A transmitter converts the low-level sensor signal into a robust 4–20 mA or HART signal that can travel long cable distances without interference. Smart transmitters also add sensor diagnostics and improve accuracy through transmitter-sensor matching.
A thermowell protects the sensor from pressure, flow and corrosion and lets you replace the sensor without draining the process. Where a process penetration is undesirable, a non-intrusive surface measurement can be used instead, with no thermowell and no shutdown.
It is a transmitter that carries a digital HART signal on top of the 4–20 mA loop. This allows remote configuration, calibration and diagnostics using the same two wires, and supports RTD, thermocouple, millivolt and ohm inputs.
