Calibration constant, Calibration curve – Ronan X96S DENSITY GAGE User Manual
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Density Gage Manual 012407
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Calibration Constant
The two values, the reference density (d
o
) and the calibration constant (1/ut), are used by the X96N algorithm to calculate process
density (d).
t
ut
1/ut
2"
0.4
2.5
3"
0.6
1.6
4"
0.8
1.25
5"
1.0
1.0
6"
1.2
0.825
8"
1.6
0.625
10"
2.0
0.5
t = mat'l thickness (pipe I.D.)
u = absorption coefficient
= 0.2 for Cs137
1/ut = calibration constant
Transmission/Absorption Table
Calibration Curve
The first curve below shows the relationship for a single-point calibration between the Low Reference, the Calibration constant,
and the X96S output value.
The calibration curve below depicts a two-point calibration and the relationship between the Low Reference, High Calibrate, and
the X96S output value.