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Stress Relieving Equipments

THERMOCOUPLES

Thermocouples

THERMOCOUPLES

M/s PREMIER INSTRUMENTS, deals with a wide range of temperature sensing devices, thermocouples and R.T.D sensors We supply Thermocouples and R.T.D of all types, ranges, varieties.All our supplies are with calibration certificates and traceable to national and international standards WE SUPPLY Different types of thermocouples like E, J, K, N, T, S, R, and B. Each type is suitable for a specific temperature range from –201°C to 1700°C.

The construction of each makes it suitable for use in various environments:

Type E: suitable for vacuum, inert, mildly oxidizing, or reducing atmospheres
Type J: may be used, exposed or unexposed, where there is a deficiency of free oxygen
Type K: typically requires metal or ceramic protection
Type N: resists oxidation where sulfur is present
Type T: can be used in either oxidizing or reducing atmospheres
Types S, R, B: should always be protected with a ceramic tube, a secondary tube of porcelain, and a silicon carbide or metal outer tube as conditions require

Given here is the suitable range for different types of thermocouples

Type K Thermocouple
Thermocouple grade wire, –454 to 2,300F (–270 to 1260C)
Extension wire, 32 to 392F (0 to 200C)
Type J Thermocouple
Thermocouple grade wire, -346 to 1,400F (-210 to –760C)
Extension wire, 32 to 392F (0 to 200C)
Type T Thermocouple
Thermocouple grade wire, -454 to 700F (-270 to 370C)
Extension wire, 32 to 392F (0 to 200C)
Type E Thermocouple
Thermocouple grade wire, -454 to 1600F (-270 to 870C)
Extension wire, 32 to 392F (0 to 200C)
Type N Thermocouple
Thermocouple grade wire, -454 to 2300F (-270 to 392C)
Extension wire, 32 to 392F (0 to 200C)
Type S Thermocouple
Thermocouple grade wire, -58 to 2700F (-50 to 1480C)
Extension wire, 32 to 392F (0 to 200C)
Type R Thermocouple
Thermocouple grade wire, -58 to 2700F (-50 to 1480C)
Extension wire, 32 to 392F (0 to 200C)
Type B Thermocouple
Thermocouple grade wire, 32 to 3100F (0 to 1700C)
Extension wire, 32 to 212F (0 to 100C)
Thermocouple Conductor Type Limits of Error (Whichever is greater)
Standard Special
Type K ±2.2˚C or ±0.75% ±1.1˚C or ±0.4%
Type T ±1.0˚C or ±0.75% ±0.5˚C or ±0.4%
Type J ±2.2˚C or ±0.75% ±1.1˚C or ±0.4%
Type N ±2.2˚C or ±0.75% ±1.1˚C or± 0.4%
Type E ±1.7˚C or ±0.5% ±1.0˚C or ±0.4%
Type S ±1.5˚C or ±0.25% ±0.6˚C or ±0.1%
Type R ±1.5˚C or ±0.25% ±0.6˚C or ±0.1%
Type B ±0.5% ±0.25%
THERMOCOUPLE ACCURACIES

The accuracy of a thermocouple depends on many factors including but not limited to electrical interference and the purity of the metals used.

Temperature B Type E Type J type K Type N Type R Type S Type T Type
-200˚C - - - 3 3 - - 3
-100˚C - - - 2.5 2.5 - - 1.5
0˚C - 1.7 1.5 1.5 1.5 1 1 0.5
200˚C - 1.7 1.5 1.5 1.5 1 1 0.8
400˚C - 2 1.6 1.6 1.6 1 1 -
600˚C 1.5 3 2.4 2.4 2.4 1 1 -
800˚C 2 4 - 3.2 3.2 1 1 -
1000˚C 2.5 - - 4 4 1 1 -
1200˚C 3 - - 9 9 1.3 1.3 -
1400˚C 3.5 - - - - 1.9 1.9 -
1600˚C 4 - - - - 2.5 2.5 -

Premier Instruments is one of the leading suppliers of stressreleaving equipments in India with a long experience of more than 30 years in the field of process instruments, measurement and calibration.We supply Temperature recorders, Thermocouples, RTDs, chartpapers, pens and ribbons, control panels,..

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