RTD sensor elements
High temperature capability, excellent chemical resistance, biological inertness and long-term electrical stability make platinum a natural choice as the base material for temperature measurement resistance elements, heaters or electrodes.
Due to the special properties of platinum, Pt measurement resistors with 1,000, 2,000 or 10,000 ohms provide a range of advantages compared to competing sensors such as semiconductor sensors (KTY®) or thermistors (NTC);
- High precision
- Low drift
- Long service life
- Nearly linear characteristic
- Standardised characteristic line assures sensor interchangeability
- Fast response time
- High resistance to thermal shock
- Wide temperature application range from -220°C to +1,000°C.
Versions with resistance values of 100, 200, 500, 1,000 and 10,000 ohm are available.
The chemical stability of initial materials, their tested purity and homogeneity, provide an important foundation for the well-known long-term stability and the reproducibility of the measurements over thousands of measurement cycles.
Special glazes from almost completely eliminate effects due to moisture, climatic or other ambient influences. The product group of wire wounded temperature sensor elements also includes particularly narrow types of sensor for mounting in protective tubes with a small internal diameter (Ø0.4mm).
This also applies to sensors with connection leads for the substitution of conventional, wound Pt temperature probes by current versions of the HD and HA series in thin-film technology.
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