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Wire Wound RTD

Techno Controls, a leading manufacturer of temperature sensors, produces a wide range of wire wound temperature sensors.

Technocontrols
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Wire Wound RTD

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  1. Wire Wound RTD • https://www.technocontrols.com

  2. Bearing Temperature Detectors Product Overview • Wire wound elements are basically a “hand made“ product which involves lot of skilled Labour. • It is manufactured by placing a coil of thin wire (7 microns to 35 microns) into a ceramic insulator.

  3. Bearing Temperature Detectors Main Features • For measuring tolerance, the measuring wires are connected to the lead at 5 mm from the closed end. • Normally, 1mA sensing current is recommended for sensing purposes. • A 2.8 mm x30 mm element will have self heating characteristics of 0.01 per deg c/mW. In air, it increases about 30 times. • With adequate support, the elements will withstand vibration level of 30g over the frequency range of 10 Hz to 30 Hz.

  4. Bearing Temperature Detectors Construction • The resistance of the coil is suitably adjusted to the ohms corresponding to that particular temperature. • Ideally, this coil should be freely suspended for natural expansion and contraction. However, such construction is not immune to vibration and hence it is not adopted for industrial application. • For industrial application, normally partially supported or fully supported construction is used which are quite immune to vibration. • The extended leads are quite rugged as compared to the alpha wire and normally made from Pt base metal (for Platinum resistors). • The choice of ceramic insulator is also very important as any impurities in the insulator may detoriate the characteristic of the alpha wire.

  5. Techno Controls • Plot No. 54/1, Survey No. 299,Meladi Estate, Nr. Gota Railway Crossing,Gota, Ahmedabad - 382481, Gujarat, India. • Mobile: +91-99099 25234Telefax: +91-2717-241315,241312Email: info@technocontrols.com • www.technocontrols.com

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