Keithley 3720 User Manual page 113

Series 3700 System Switch/Multimeter User's Manual
Thermocouple connections
Connections for thermocouples are shown below. Thermocouples are color coded to identify the
positive (+) and negative (-) leads (see the table). Note that the negative (-) lead for U.S. type
T/Cs is red.
T/C type
J U.S.
British
DIN
Japanese
French
K U.S.
British
DIN
Japanese
French
N U.S.
British
DIN
Japanese
French
T U.S.
British
DIN
Japanese
French
Document Number: 3700S-900-01 Rev. A / August 2007
Positive (+) Negative (-)
White Red
Yellow Blue
Red Blue
Red White
Yellow Black
Yellow Red
Brown Blue
Red Green
Red White
Yellow Purple
Orange Red
-- --
-- --
-- --
-- --
Blue Red
White Blue
Red Brown
Red White
Yellow Blue
Section 5: Basic Digital Multimeter (DMM) Operation
T/C type Positive (+)
E U.S. Purple
British Brown
DIN Red
Japanese Red
French Yellow
R U.S. Black
British White
DIN Red
Japanese Red
French Yellow
S U.S. Black
British White
DIN Red
Japanese Red
French Yellow
B U.S. Gray
British --
DIN Red
Japanese Red
French --
Negative (-)
Red
Blue
Black
White
Blue
Red
Blue
White
White
Green
Red
Blue
White
White
Green
Red
--
Gray
Gray
--
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