Fluke RUSKA 7252, User Manual

Page: 34 / 128

RUSKA 7252
Users Manual
2-14
Range Coefficients
KnF 0=Range Unused
4=Valid High FSR Range
5=Valid Low FSR Range
Kn0, Kn1, Kn2 Calibration constants for range
0
24
1
2
48
2 *
2
*
2
n
n n K A
K
A
K
B
+ + =
Where
A
is the zero corrected counts (7,381,975 = full scale of current range)
and
B
is the calibrated counts (7,381,975 = full scale of current sensor)
KnH Zero corrected counts for upper limit of range. When the zero corrected counts
from the A/D exceed this value the next higher range will be used (if possible).
(7,381,975 = full scale of current range)
KnL Zero corrected counts for lower limit of range. When the zero corrected counts
from the A/D are below this value the next lower range will be used (if possible).
(7,381,975 = full scale of current range)
n=Range number (1 – 4 for high range sensor, 5 – 8 for low range sensor)