Siemens SITRANS F FM100 - Page 34

SITRANS FM100
A5E48762204-AA page 33
Measuring
range [LPM]
pulse width
[ms]
min. pulse
volume [L]
max. pulse rate
[pulse/L]
100
20
0.08889
11.25
10
0.04444
22.50
5
0.02222
45.00
1
0.00444
225.00
50
20
0.04444
22.50
10
0.02222
45.00
5
0.01111
90.00
1
0.00222
450.00
25
20
0.02222
45.00
10
0.01111
90.00
5
0.00556
180.00
1
0.00111
900.00
10
20
0.00889
112.50
10
0.00444
225.00
5
0.00222
450.00
1
0.00044
2250.00
03
20
0.0026
375
10 0.0013 750
5
0.0006
1500
1
0.0001
7500
The pulse output only takes place in measuring mode; while the menu mode is
active no pulses are given. The pulses accumulated in the menu mode are output
as soon as the measuring mode is active again. Depending on the situation, this
can also lead to a longer pulse lag.
10.6.3.1 Pulse volume
The parameter "Pulse volume" is defined as volume quantity for the output of a
pulse; the unit is corresponding to [volume quantity / pulse]. The likewise
common pulse rate [pulse / volume unit] corresponds to the reciprocal of the
pulse volume.
Example: Desired pulse rate at the output 10 pulses / liter => pulse volume = 1 /
pulse rate = 1/10 L = 0.1 L
10.6.3.2 Volume unit
The volume unit to be set is the input unit for the "Pulse volume" parameter. The
definition of a user-defined unit ("user") is also possible and can be programmed
in "liters".
Example:
Unit "user" = 10 [L], pulse volume = 2 [user]
The total pulse volume would be 2 * 10 = 20 [L]. After 20 liters, a pulse is output.
10.6.3.3 Pulse width
The pulse width of the pulse output is flexibly adjustable from 1 to 20,000 ms.