Troxler 3430 Plus, Manual Of Operation And Instruction

Page: 184 / 218

Appendix F–2
MEASUREMENT SPECIFICATIONS
SI UNITS
Density at 2000 kg/m
3
Direct Transmission (150 mm)
.25 min 1 min 4 min
Precision (kg/m
3
)
±
6.8
±
3.40
±
1.70
Composition error (kg/m
3
)
±
20.0
±
20.0
±
20.0
Surface error (kg/m
3
) –17.0 –17. 0 –17. 0
(100% Void)
Backscatter (98%, 100 mm)
.25 min 1 min 4 min
Precision (kg/m
3
)
±
16.0
±
8.00
±
4.00
Composition error (kg/m
3
)
±
40.0
±
40.0
±
40.0
Surface error (kg/m
3
) –75.0 –75. 0 –75. 0
(100% Void)
Moisture at 240 kg/m
3
.25 min 1 min 4 min
Precision (kg/m
3
)
±
10.3
±
5.1
±
2.6
Surface error –18.0 –18.0 –18.0
(1.25 mm, 100% void, kg/m
3
)
Precision is defined as
±
one (1) standard deviation in density
readings. This number is calculated by the ratio of the standard
deviation in the counting rate and the slope of the calibration curve
at a given density.