Siemens Milltronics BW500/L - Page 95

Recalibration
7.7 Linearization
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
93
as indicated by the BW500. 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 BW500 load
display during running conditions or by calculation.
load = (rate/speed)
BW500 load
material test
BW500 total
compensation
a)
kg/m
tonnes
tonnes
%
6.94
2.5
2.8
-10.7
13.89
5.0
4.5
11.1
20.83
7.5
7.9
-5.1
27.78
10.0
9.2
8.7
34.72
12.5
13.3
-6.0
a)
calculation example: % compensation = [(2.5 – 2.8) x 100]/2.8
= -10.7