Keysight 34420A - Page 298

7Measurement Tutorial
294 Keysight 34420A User’s Guide
Type + lead - 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 to 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 to 1200 °C ± 1.1 to 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 to 1370 °C ± 1.1 to 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 to 400 °C ± 0.5 to 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 to 1000 °C ± 1 to 1.7 °C
Highest output voltage.
Highest resolution.