Keysight 34972A - Page 284

7Tutorial
284 Keysight 34970A/34972A User’s Guide
Thermocouple Types
T/C Type Pos (+) Lead Neg (-) Lead
Temperature
Range
Probe
Accuracy
Comments
B
U.S.
British
DIN
Japanese
French
Platinum -30% Rhodium
Gray
N/A
Red
Red
N/A
Platinum -60% Rhodium
Red
N/A
Gray
Gray
N/A
250°C - 1820°C ±0.5°C
High Temperature.
Beware of contamination.
Do not insert
in metal tubes.
J
U.S.
British
DIN
Japanese
French
Iron
White
Yellow
Red
Red
Yellow
Constantan
Red
Blue
Blue
White
Black
-210°C -
1200°C
±1.1°C -
2.2°C
For vacuum, inert
environments.
Least expensive.
Not recommended for
low temperature.
K
U.S.
British
DIN
Japanese
French
Nickel-Chromium
Yellow
Brown
Red
Red
Yellow
Nickel-Aluminum
Red
Blue
Green
White
Purple
-200°C -
1370°C
±1.1°C -
2.2°C
For oxidizing environments.
Good linearity
above 8°C.
T
U.S.
British
DIN
Japanese
French
Copper
Blue
White
Red
Red
Yellow
Constantan
Red
Blue
Brown
White
Blue
-200°C - 400°C ±0.5°C - 1°C
Withstands moisture.
Has a copper lead.
Low temperature
applications.
E
U.S.
British
DIN
Japanese
French
Nickel-Chromium
Purple
Brown
Red
Red
Yellow
Constantan
Red
Blue
Black
White
Blue
-200°C -
1000°C
±1°C - 1.7°C
Highest output voltage.
Highest resolution.