742A Series
Instruction Manual
Figure 2. Typical Rear Panel View
Table 3. Contents of the Rear Panel Labels
Ref No.
Label Information
Measured value label. Shows the measured value at 23
±
0.6
°
; the same as on the Report of
Calibration.
Temperature coefficient label. Shows alpha and beta centered on 23
°
C. Refer to “How
Temperature Correction Factors are Calculated,“ further on in this manual for definitions of
alpha and beta, and the formula to predict exact resistance at different temperatures.
Fluke Primary Standards Lab Calibration Label documents traceability to the U.S. National
Bureau of Standards.
Serial number label. Shows the standard’s serial number. This number and the full model
number (i.e., 742A-1) positively identify a particular unit.
4
