Ronan X96S LEVEL GAGE - Manual (Page 9)

5
• Calibration (Referencing) – calibration of gage to user process.
The Calibration (or Referencing) procedure relates detector output (in counts) to numeric values that accurately represent the
actual process level.
The level algorithm used by the X96S software is a simple transfer function. That is, the relationship between the detector output
and the process level is mathematically expressed as:
( )








×







 −
+ =
−
−
0
0
0
0
L L
I I
I I
L Level
f
f
Where:
I
f
= detector signal with calibrate (full) level (L
f
) in vessel
I
o
= detector signal with reference (low) level (L
0
) in vessel
I = current detector signal
L
0
= level @ reference (low level)
L
f
= level @ calibration (high level)