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Basics of Thermocouples and RTDs
- 2. What is Temperature Sensor. • Types of Temperature Sensors. Thermocouples. • Types Of Thermocouples. • MI & Non MI Construction. • Thermocouple Insert construction. RTDs. • Types of RTDs. • Special RTDs. • RTD Insert Construction. Applications. www.tempsens.com
- 3. The degree of Heat present in an object is called temperature and the Device which is used to Measure the temperature is called Temperature Sensors. The need of Temperature Sensor is to Quantify and Measure the Object’s Temperature. www.tempsens.com
- 4. Thermocouples. RTDs (Resistance temperature Detectors). www.tempsens.com
- 5. Thermocouple is a pairs of dissimilar metal wire joint at one end, which generate a net thermoelectric voltage between the open pair according to temperature difference between the ends. A thermocouple is made of two or more metals joined together to form two junctions. • One junction is connected to an object whose temperature is to be measured called as measuring junction. • Other junction is connected to an object of known temperature called as reference junction. • This is how Thermocouple measures unknown temperature of the object with reference to the known temperature of an another object. www.tempsens.com
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- 11. Resistance thermometer use metals that alter there electric resistance when heated. Platinum is the most commonly used material for industrial RTD. However Copper and Nickel are also used for some applications. The resistance at 0°C is called R𝑜 and it is an important parameter to be defined. The most commonly used RTD element is of platinum with resistance of 100 O at 0 °C. Thus named as Pt 100. Platinum RTD are suitable for temperature range -200 to 850°C. Normally industrial RTD’s are used up to temperature range of 400°C. www.tempsens.com
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- 13. www.tempsens.com
- 14. • Slide shoe bearing RTDs. • Vibration proof RTDs for Bearing & DG sets. • Motor & Transformer winding temperature RTDs. • Handheld & Probe in various designs. • RTDs with IBR approved Thermowells. • Strap on RTDs for nuclear application. • High Temperature RTDs up to 1/10 DIN. • Semi Standard PRTs with NABL Certificate. • Calibrated at Fixed points suitable up to 661°C. www.tempsens.com
- 15. www.tempsens.com
- 16. • Cement Industries • Power Industries • Steel Industries • Glass Industries • OEM’s Industries • Non- Ferrous Industries • R & D Industries • Pharmaceutical Industries • Petrochemical Industries • Nuclear Industries. • Chemical & fertilizers Industries www.tempsens.com
- 17. Tempsens Instruments (I) Pvt. Ltd. B-188 A, Road No. 5, MIA, Madri Udaipur - 313 003 (Rajasthan) INDIA Phone : +91-294-3057700 Fax : +91-294-3057750 E-mail : info@tempsens.com Website : www.tempsens.com Temperature Sensing, Heating & Cables