EDS2-1G Datasheet, PDF (1/10 Pages) Fuji Electric – J,E,K Type THERMOCOUPLES FOR GENERAL USE

J,E,K Type THERMOCOUPLES FOR GENERAL USE
DATA SHEET
FTA,B,D
These thermocouples are convenient for measuring
a wide range of temperature in general plants, and are
availble in J, E and K type.
They are insulated with a porcelain tube, and then
housed in a metal protecting tube for heat-, pressure-and
corrosion-proofing.
SPECIFICATIONS
Applicable standard:
JIS C 1602—1995
Thermocouple element:
Material;
Material
Symbol
Positive lead
Negative lead
J Steel
Alloy mainly made fromcopper
and nickel
E
Alloy mainly made from Alloy mainly made fromcopper
nickel and chrome
and nickel
K Alloy mainly made from Alloy mainly made from nickel
nickel and chrome
Note: Positive lead means the one connected to positive terminal of
the instrument measuring thermoelectromotive force, and nega-
tive lead means the one connected to the opposite terminal.
Class;
Class
Symbol of material
1
J, E, K
2
J, E, K
3
E, K
Note: Class3 is applicable only to low tem-
peratures below 40°C.
Temperature accuracy;
Symbol Class
Measured
temperature
(˚C)
Tolerance
-40˚C or more, less than +375˚C ±1.5˚C
1
375˚C or more, less than 1000˚C ±0.004•|t|
-40˚C or more, less than +333˚C ±2.5˚C
K
2
333˚C or more, less than 1200˚C ±0.0075•|t|
-167˚C or more, less than +40˚C ±2.5˚C
3
-200˚C or more, less than -167˚C ±0.015•|t|
-40˚C or more, less than +375˚C ±1.5˚C
1
375˚C or more, less than 800˚C ±0.004•|t|
-40˚C or more, less than +333˚C ±2.5˚C
E
2
333˚C or more, less than 900˚C ±0.0075•|t|
-167˚C or more, less than +40˚C ±2.5˚C
3
-200˚C or more, less than -167˚C ±0.015•|t|
-40˚C or more, less than +375˚C ±1.5˚C
1
375˚C or more, less than 750˚C ±0.004•|t|
J
-40˚C or more, less than +333˚C ±2.5˚C
2
333˚C or more, less than 750˚C ±0.0075•|t|
Note: Tolerance means the maximum allowable limit of the
value calculated by subtracting the temperature of
the temperature measuring junction from the
temperature obtained by converting the thermal
electromotive force by the reference thermal
electromotive force.
|t| is the value indicated by temperature (˚C) that is
Diameter of element;
φ1, φ3.2
Normal limit and allowable overheat limit;
Symbol
J
Diameter of
element
[mm]
φ1
Normal
limit
[°C]
450
Allowable overheat
limit
[°C]
550
φ3.2
600
750
E φ1
500
550
φ3.2
700
800
K φ1
750
950
φ3.2
1000 1200
Note: The normal limit means the temperature limit up
to which the thermocouple can be used continu-
ously in air.
Allowable overheat limit means the temperature
limit up to which the thermocouple can be used
for a short time, when necessary.
Material of protecting tube:
S ; 304 stainless steel R ; 310S stain-
less steel
W ; 316 stainless steel U ; 27Cr
*T ; 316L stainless steel J; 20Cr-80Ni
Mounting and protecting tube form:
Protecting
tube form
Mounting form
Insertion type
A
D
Screw-in type
F
—
Screw-in type
J
—
Flange type
M
Q
Note: The thermocouple of diameter φ27 in protecting
tube form is applicable to the case where material
of protecting tube is J or U.
In the case of U, and with mounting form D and Q,
the double element is applicable.
EDS2-1g
Date Jan. 31, 2007