CWW Ceramic Wire-Wound RTD Elements
CWW Ceramic Wire-Wound platinum RTD Elements from Sensor Technology Ltda. are characterised by their extremely high stability, high-temperature capability and high accuracy over a very wide temperature range. Sensors can measure the temperature of gases, liquids and solids, from -196ºC to 850ºC, with a precision between 0.012Ω and 0.12Ω at 0ºC or between 0.03°C and 0.3°C at 0°C.
The ceramic RTD construction design consists of a platinum wire coil (or for Duplex versions, two coils) encapsulated in a very high purity, aluminium oxide ceramic tube. The empty spaces remaining between the platinum coil and the internal tube walls are filled with a material which allow the platinum contraction and expansion movement during temperature variations.
CWW RTD elements have multiple applications, such as laboratory, process technology and high value-added equipment. Applications where a highly accurate measurement is necessary should be built with this sensor type and 4 extension wires, however 3-wire construction is the most commonly found.
Other Products and Services from ATC Semitec
RTD Temperature Sensor Assemblies
YAGEO Nexensos not only supply a wide range of platinum RTD elements but also temperature sensor assemblies in various formats. Of all the numerous sensor designs, two of the most interesting are as follows;
EC3032 temperature sensors are high integrity, encapsulated RTD sensors primarily designed for use in e-vehicle e-motor applications. Their small size and IP68 insulation rating makes them ideal for use in the e-motor stator windings and they are also impervious to varnish ingress and other fluids such as oil or grease. Using a Pt1000B element as standard, the 410mm PTFE long leads make this a very versatile sensor that can be used from -50°C to +200°C.
Our PCB RTD temperature sensors are basically chip RTD elements pre-soldered onto printed circuit boards (PCBs) originally designed for use in domestic calorimeters. The PCB has a meandering, zigzag circuit path to help minimise heat loss from the RTD to improve temperature measurement accuracy. These RTD PCB sensors are sometimes preferred to NTC versions, as their inherent long-term stability is extremely important when accurately measuring and apportioning consumer energy consumption in district heating systems.
1/2" Disc Thermostats
ATC Semitec stocks a comprehensive disc thermostat range from leading manufacturers Asahi Keiki and EAW.
Snap-action 1/2″disc bi-metal thermostats (or button thermostats) provide very reliable, cost-effective temperature control and thermal protection for domestic appliances and electronic circuits with a choice of manual or automatic reset available. These thermal switches can be supplied with tight tolerances and narrow differentials to make very effective thermostats; or they can be calibrated with wide differentials to provide over-temperature protection as either a thermal cut-out or a thermal limiter.
Thermal Protection
ATC Semitec stocks an extensive range of auto-reset, manual reset and self-hold thermal protection devices from some of the world’s leading manufacturers such as PEPI, ASAHI, SEFUSE, EAW and SEKI.
Thermal protectors are used as safety mechanisms which will protect your products from overheating in the result of an abnormal operating condition. The thermal cut-outs will protect against an over-temperature situation which could ultimately help to prevent fires or major damage to electrical components or appliances.
ATC Semitec
Unit 14, Cosgrove Business Park, Anderton, Northwich, Cheshire, CW9 6FY, United Kingdom
ATC Semitec is the UK’s top distributor of thermal components, offering NTC thermistors, platinum RTDs, thermostats, and more. We support engineers in energy-efficient product development across industries. Committed to sustainability, we’re on a Pathway to Net Zero and have earned the Ecovadis Silver Award.