KROHNE UFM 500 EN - Manual (Page 29)

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Fct. 3.4.6 to 3.4.8 Low-flow cutoff SMU
Refer to sect. 5.10.
Sound velocity measurement (see also sect. 5.17)
•
Set the minimum and maximum sound velocity under fct. 3.1.8 and 3.1.9.
•
PULSRATE must be set under fct. 3.4.2 “Unit, frequency output”, otherwise error in parameter check (fct. 4.9.0), see
sect. 4.2 + 4.3.
•
Under fct. 3.4.3, set the pulse rate for the full-scale range of the sound velocity in pulses per second, minute or hour.
5.8.3 Characteristics of frequency output F
F1
F
F
max
(125%)
F
100%
100 Max
Q
forwar
%
Q
reverse
% 0
1 flow direction
F
F
max
(125%)
F
100%
100 Max % % 0
F/R operation
F/R changeover via I
100 Max
F2
Q
reverse
Q
forwar
I
100 Max % % 0 100 Max
I
max
I
0%
Q
reverse
Q
forwar
I
max
I
100%
100 Max % % 0 100 Max
I
I
0% Q
reverse
Q
forwar
F3
100 Max % % 0 100 Max
Contact open
Contact closed
Direction indication for I
F
Q
reverse
Q
forwar