SENSOR                            SELECTION










  
































































ANSI SYMBOL

ELEMENTS

TEMPERATURE
 RANGE		 ACCURACY
 STANDARD
+ VE LEAD               - VE LEAD      

J

 IRON (Fe) CONST. (Cu-Ni) 0 to 750°C IS  2057
T COPPER (Cu) CONST. (Cu-Ni) -200 to 350°C

IS  2056
E NICKEL CHROMIUM (Ni-Cr) COPPER NICKEL (Cu-Ni) -200 to 900°C IS 10625
K NICKEL CHROMIUM (Ni-Cr) NICKEL ALUMINIUM (Ni-Al) -200 to 1250°C IS  2054
S PLATINUM 10% RHODIUM (Pt 10% Rh)   PLATINUM (PT) 0 to 1600°C IS  2055
R PLATINUM 13% RHODIUM (Pt 13% Rh)  PLATINUM  (PT) 0 to 1600°C IS  2055
B PLATINUM 30% RHODIUM Pt-30% Rh)  PLATINUM 6% RHODIUM (Pt-6% Rh) 0 to 1700°C IS  6720

RTD's

PT-100,

PT-500,

    PT-1000		             -200 to 600°C IS  2848


         
METAL

CONTINUOUS OPERATING TEMPERATURE (°C)

 MELTING POINT TEMPERATURE (°C) STANDARD DIA IN MM

SS304

 800 1405 3,5,6,8,10,12.7,18,22,25

SS316

 825 1370 3,5,6,8,10,12.7,18,22,25

SS310

 1150 1405 8,10,12.7,18,22,25

INCONEL

 1150 1400 8,10,12.7,18,22,25

CERAMIC TUBE

 1400 1600 8,12,15,20,24
RECRYSTALLIZED
ALUMINA TUBE		 1750 2072 8,12,15,20,24

CAST IRON

 800 1280 20, 50

BRASS

 800 830 6,8,10,12,20,22




COMMON THERMOCOUPLE JUNCTIONS



Used to measure temperature of corrosive gas and liquids; Junction is grounded to protective sheath for faster response.



Used to measure temperature of non corrosive gases and liquids. Junction extends beyond the protective sheath to give faster response.



Used to measure temperature of corrosive gas and liquids in electrical application. Junction insulated from protective sheath.

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