Troxler 3411-B, Manual Of Operation And Instruction

Page: 39 / 109

Model 3400-B Series 5-3
Sample
No.
%M Oven
Dry %M Gauge
%Oven Dry -
% Gauge
1
2
3
4
5
4.5
4.0
7.2
6.7
5.1
8.6
5.8
9.7
8.6
7.3
-4.1
-1.8
-2.5
-1.9
-2.2
Average 5.5 8.0 -2.5
Table 1. Sample Moisture Correction Chart
The difference between the oven dry and the gauge samples is
expected to vary from sample to sample due to normal
variation. If the difference indicates the gauge is sometimes
higher and sometimes lower than the oven dry, no correction
may be needed. If the difference indicates the gauge reads
consistently
higher or lower than the oven dry, a correction
factor is needed.
To determine the correction factor, calculate the average value
and proceed as follows:
FOR THE 3411-B
Calculate the correction factor using the average value.
%M Oven Dry - %M Gauge
100 + %M Gauge
x 1000
Dial this value into the moisture correction switches on the
3411-B scaler, paying attention to the algebraic sign. In the
example above, the moisture correction is:
-2.5
100 + 8.0
x 1000 = -23