Pt100 sensor, RTD and platinum sensor
Platinum RTD’s, allow for accurate sensing at very high and very low temperatures from -200°C up to
+ 850°C. Platinum temperature sensor elements are used in temperature probes, in measuring instruments and systems and also in electronic equipment.
The available types of RTD sensors
Stator slot sensor
- Stator slot style Pt100 sensors in a length of 100mm up to 500 mm are commonly used.
- Available resistances of Pt1000, Pt500 and Pt200
- Common diameters are between 8-12mm
- Available with silver, nickel or tin plated copper lead wires in a variety of AWG sizes.
- Certified “intrinsically safe” and “increased safety” models for hazardous, explosive environments.
Thin film sensors
- Are the most broad spectrum, economical platinum RTD sensor
- Thin films are the flattest temperature sensor, give a fast response time and are durable and have a high vibration resistance
- Available in resistance values: Pt50, Pt100, Pt200, Pt500, Pt 1000
- Often chosen in high vibration applications such as aerospace and automotive industries
SMD platinum sensors
- SMS’d are specifically designed to fit on PCBs (printed circuit boards)
- Form the active measurement element on a PCB
- Are mainly used in electronics industry or the semi-conductor industry
Ceramic wire wound sensors
- Are suitable for the thinnest RTD mineral insulated cables
- Ceramic wire wounds operate at a wide temperature range (up to 850 °C) and have a high level of resistance to thermal shock
- Available in resistance values of Pt100 and Pt50
- Often used in industries such as chemical and power generation
Cryogenic platinum cobalt resistance sensor
The cryogenic platinum Cobalt resistance sensor, is a type of RTD sensor for extremely low temperatures. Key highlights include:
- Designed for temperatures below 73K (-200°C) to 1.5K (-271°C).
- Developed in partnership with Okazaki, incorporating aerospace technology for high precision.
- Features include high vibration resistance, excellent repeatability, and measurement capability at very low temperatures.
- Available in two resistances, Pt100 and Pt1000, with detailed temperature-resistance tables provided.
- Compared to silicon diodes, it offers higher accuracy and is less influenced by magnetic fields.
Benefits of platinum RTD sensors
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.
Due to the special properties of platinum, Pt measurement resistors with 100, 200, 500 and 1,000 ohm provide a range of advantages compared to competing sensors such as semiconductor sensors (KTY®) or thermistors (NTC). Such as;
- 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
Why choose Kamet for your platinum sensors?
Ultimately the choice of an RTD sensor depends on many specifics. Kamet has been in the high temperature world for many years and has extensive knowledge of the industry and the latest developments. The fact that we supply three different types of platinum temperature sensor makes us your ideal advisor and supplier.
Kamet’s commitment to quality is reflected by our choice to partner with expert suppliers in the field: YAGEO Nexensos (SMD and thin film sensors) and Sensor Technology (ceramic wire wound sensors).
Do you have a question about RTD sensors & Pt100?
Get in contact with our sales managers to receive a quote.
