Fluke Calibration 5730A, Operator'S Manual, Page: 109 / 260

Front-Panel Operation
Linearity Check with Offset and Scale
4
4-45
The 10.000208 V output setting is calculated by the Calibrator with the subsequent
equation:
1 -
19.9 V – 19.903 V
= 1.0001508
19.9 V
This is applied to 10 V to yields:
10 V x 1.0001508 = 10.001508 V
The 1.3 mV zero offset is then subtracted:
10.001508 V
−
0.0013 V = 10.000208 V
8. Use the output adjustment controls to adjust the Calibrator output for a reading of
10.0 V (the reference value) on the DMM. The displays change to:
dBm
kHz
1.0000
42.00000
+/- 4.3 ppm (1 year) 213 days since calibration 4/18/2013 14:33
External
Sense
OFF
External
Guard
OFF
Wideband
OFF
Setup
Menu
Standby
V
Auto Range 11 V
9.99 3 208
Offset Scale
Reference
10.000000 V Offset
0.001300 V Linearity Error
= +0.0352%
New Reference
hhp141.eps
The display now shows that the DMM scale error at 19.9 V is -0.0151 %, and the DMM
linearity error at 10 V is +0.0352 %.