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Milltronics BW100 - INSTRUCTION MANUAL
7ML19985DJ01
mmm
mm
Re
ca
libr
ation
Example:
A non-linearity with respect to the ideal response exists in a belt scale application with
design rate of 200 t/h. It is decided to do material tests at 25, 50 and 75% of the design
rate. After performing a zero and a span calibration at 100% of the design rate, followed
by material tests and manual span adjust, three material tests were performed at 50, 100
and 150 t/h, as indicated by the BW100. The following data was tabulated. (This example
is exaggerated for emphasis).
The material tests should be run at same belt speed, representative of normal operation;
in this case 1.2 m/s. For each rate, record the corresponding load value by scrolling to the
BW100 load display during running conditions or by calculation.
load = rate
speed
*calculation example: % compensation = 4.2 - 4.9 x 100
4.9
= - 14.3
BW100 load
kg/m
material test
tonnes
BW100 total
tonnes
compensation*
%
11.6
4.2
4.9
-14.3
23.2
8.4
7.6
10.5
34.7
12.6
13.7
-8.0
5
10
15
20
0
10
-14.0
10.5
-8.0
20
30
40
50
load - kg / m
weigh
t = t
onnes
actual weight per material test
totalized weight by BW100
belt scale response
linearized BW100 response
% compensation
span (100%)
3
