7ML19985CN01
Milltronics SF 500 – INSTRUCTION MANUAL
Page 47
mm
mmm
Reca
libr
at
ion
Example:
A non-linearity in the ideal response exists in a solids flowmeter application with a
design rate of 200 t/h. Material tests are performed at 15, 30, 45, 60, and 75% of the design
rate. Perform a zero and a span calibration at 100% of the design rate, followed by
material tests and manual span adjust. The five material tests are performed at 30, 60, 90,
120, and 150 t/h, as indicated by the SF 500. The following data is tabulated. (This example
is exaggerated for emphasis.)
*calculation example: % compensation = 2.5 – 2.8 x 100
2.8
= - 10.7
SF 500 rate
material test
SF 500 total
compensation*
t/h
tonnes
tonnes
%
30
2.5
2.8
-10.7
60
5.0
4.5
11.1
90
7.5
7.9
-5.1
120
10.0
9.2
8.7
150
12.5
13.3
-6.0
0
5
10
15
20
25
30
0
120
30
-10.7
-11.1
-5.1
8.7
-6.0
150
240
60
180
90
210
W
eig
ht
=
to
nn
es
actual weight per material test
totalized weight by SF 500
flowmeter response
linearized SF 500 response
internal response 100% - 150% of span
% compensation
span (100%)
rate t/h
Содержание Milltronics SF 500
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