Thermocouple Sensor - S, R, J, K, T, E, B Types | High Stability, Temperature Range Up To 1600°c, Oxidising Atmosphere Compatibility
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Product Specifications
| Type | Thermocouple |
| Material | Various metals |
| Temperature Range | -200-+1700 °C |
| Accuracy | ±1°C |
| Output | mV |
| Standards | IEC 584-2 |
| Usage | Industrial temperature measurement in various applications like furnaces, ovens and engines |
| Features | Temperature sensing, Accurate readings, Wide range, Durable design |
Product Overview
Key Features
Thermocouples are temperature sensors, which work on principles for flow of electron in closed circuit as described below.
Whenever two dissimilar material are joined at ends and the two ends are subjected to temperature differential, electrons flow in such closed circuit and there is potential difference between cold and hot junction. This potential difference is proportional to the temperature differential and is dependent on the metals joined.
Any two dissimilar metals can be used for this purpose, however there are many standard combinations on metals, which are internationally used and designated for use as thermocouple elements.
Most commonly used thermocouple elements are broadly divided in two categories: A) Base metal thermocouples (J, K, T, and E type) and B) Precious metal thermocouples ( R, S and B type).
Thermocouple Type-
Given below is general description of commonly used thermocouple.
IEC 584-1, PART1: S:
This thermocouples can be used in oxidising or inert atmosphere at temperatures described above.Recrystallised Alumina beads and protective sheaths are generally used. However, for lower temperatures upto 1100 Deg C metal sheaths with porcelain beads can be used.Please note that continuous use at elevated temperature may cause fusing of Rhodium in pure Platinum causing reduction in output emf.
IEC 584-1, PART2: R:
This thermocouples can be used in applications similar to S type thermocouples.The advantage being slightly higher output at same temperature and better stability. This type is preferred over S type thermocouples.
IEC 584-1, PART3: J:
This thermocouples are commonly known as iron/constantant thermocouples and can be used in reducing or inert atmosphere at temperatures described above.Restrict use in oxidizing atmosphere to temperatures up to 400 deg C, otherwise degradation will be rapid.Avoid using for application where condensation temp is often reached otherwise Fe {+leg} will rust rapidly.These are designed primarily for use in Oxidising atmosphere at temperatures described above.Great care should be taken when using for any other atmosphere.These thermocouple will get oxidised when used continuously at temp above 1000 Deg C and cause drift.For temp range from 250 to 600 Deg C stability is suspect. Cyclic temperature changes can cause error of several degrees at these temperatures. Other base metal thermocouples are better bet at this temp range.
IEC 584-1, PART4:K
This is most commonly used thermocouple ind is are commonly known as Chromel/Alumel thermocouple these are designed primarily for use in oxidising atmosphere at temperatures described above. Great care should be taken when using for any other atmosphere. These thermocouple will get oxidised when use continuously at temp above 1000 Deg C and cause drift. For temp range from 250 to 600 Deg C stabilty is suspect. Other base metal thermocouples are better bet at this temp range. Cyclic temperature changes can cause error of several degrees at these temperatures.
IEC 584-1, PART5: T:
This is commonly used in laboratory applications where sub zero temperatures are often maintained.Repeatability at -200 + 200 Deg C is excellent. However at temp above this Copper arm rapidly oxidizes causing drift.Note that the negative arm of T and J type are not same and are not interchangeable.
IEC 584-1, PART6: E and IEC 584-1, PART7: B
These thermocouples are not in much use presently.E type is more stable in -250 + 200 Deg Range than K type and can be preferred over K in this range.Type B thermocouple can be used at temperature upto 1600 Deg c. Interesting point is that in this type cold junction compensation is not normally required as emf change from 0 to 50 is negligible.
Whenever two dissimilar material are joined at ends and the two ends are subjected to temperature differential, electrons flow in such closed circuit and there is potential difference between cold and hot junction. This potential difference is proportional to the temperature differential and is dependent on the metals joined.
Any two dissimilar metals can be used for this purpose, however there are many standard combinations on metals, which are internationally used and designated for use as thermocouple elements.
Most commonly used thermocouple elements are broadly divided in two categories: A) Base metal thermocouples (J, K, T, and E type) and B) Precious metal thermocouples ( R, S and B type).
Thermocouple Type-
Given below is general description of commonly used thermocouple.
IEC 584-1, PART1: S:
This thermocouples can be used in oxidising or inert atmosphere at temperatures described above.Recrystallised Alumina beads and protective sheaths are generally used. However, for lower temperatures upto 1100 Deg C metal sheaths with porcelain beads can be used.Please note that continuous use at elevated temperature may cause fusing of Rhodium in pure Platinum causing reduction in output emf.
IEC 584-1, PART2: R:
This thermocouples can be used in applications similar to S type thermocouples.The advantage being slightly higher output at same temperature and better stability. This type is preferred over S type thermocouples.
IEC 584-1, PART3: J:
This thermocouples are commonly known as iron/constantant thermocouples and can be used in reducing or inert atmosphere at temperatures described above.Restrict use in oxidizing atmosphere to temperatures up to 400 deg C, otherwise degradation will be rapid.Avoid using for application where condensation temp is often reached otherwise Fe {+leg} will rust rapidly.These are designed primarily for use in Oxidising atmosphere at temperatures described above.Great care should be taken when using for any other atmosphere.These thermocouple will get oxidised when used continuously at temp above 1000 Deg C and cause drift.For temp range from 250 to 600 Deg C stability is suspect. Cyclic temperature changes can cause error of several degrees at these temperatures. Other base metal thermocouples are better bet at this temp range.
IEC 584-1, PART4:K
This is most commonly used thermocouple ind is are commonly known as Chromel/Alumel thermocouple these are designed primarily for use in oxidising atmosphere at temperatures described above. Great care should be taken when using for any other atmosphere. These thermocouple will get oxidised when use continuously at temp above 1000 Deg C and cause drift. For temp range from 250 to 600 Deg C stabilty is suspect. Other base metal thermocouples are better bet at this temp range. Cyclic temperature changes can cause error of several degrees at these temperatures.
IEC 584-1, PART5: T:
This is commonly used in laboratory applications where sub zero temperatures are often maintained.Repeatability at -200 + 200 Deg C is excellent. However at temp above this Copper arm rapidly oxidizes causing drift.Note that the negative arm of T and J type are not same and are not interchangeable.
IEC 584-1, PART6: E and IEC 584-1, PART7: B
These thermocouples are not in much use presently.E type is more stable in -250 + 200 Deg Range than K type and can be preferred over K in this range.Type B thermocouple can be used at temperature upto 1600 Deg c. Interesting point is that in this type cold junction compensation is not normally required as emf change from 0 to 50 is negligible.
Company Details
ZOOM INSTRUMENTS MANUFACTURING COMPANY, Established in 1993 at Kolkata in West Bengal, is a leading Exporter,Manufacturer,Supplier of Thermocouples in India. ZOOM INSTRUMENTS MANUFACTURING COMPANY is one of Trade India's verified and trusted sellers of listed products. With extensive experience in supplying and trading Thermocouple Sensor, ZOOM INSTRUMENTS MANUFACTURING COMPANY has made a reputed name for itself in the market with high-quality Bimetal Dial Thermometers, Mercury in Steel Dial Thermometer, Mercury in Steel Dial Thermometer , etc.
Focusing on a customer-centric approach, ZOOM INSTRUMENTS MANUFACTURING COMPANY has a pan-India presence and caters to a huge consumer base throughout the country. Buy Thermocouples in bulk from ZOOM INSTRUMENTS MANUFACTURING COMPANY at Trade India quality-assured products.
Focusing on a customer-centric approach, ZOOM INSTRUMENTS MANUFACTURING COMPANY has a pan-India presence and caters to a huge consumer base throughout the country. Buy Thermocouples in bulk from ZOOM INSTRUMENTS MANUFACTURING COMPANY at Trade India quality-assured products.
Business Type
Exporter, Manufacturer, Supplier
Employee Count
18
Establishment
1993
Working Days
Monday To Sunday
GST NO
19AAAFZ3950E1Z3
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Seller Details
GST - 19AAAFZ3950E1Z3
4 
Rating
RatingKolkata, West Bengal
Proprietor
Mr. Jaydeep Kamdar
Address
68, Raja Ram Mohan Roy Road, Near Vivekanand Maunch, Maity para, Kolkata, West Bengal, 700041, India
thermocouple sensors in Kolkata
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