Ext.[T]» Option - Burkert SE35 Notice D'utilisation

4 CONFIGURATION
4.2.5. «EXT. [T]» Option
Delvery of a volume proportional to the duration of the high level on the input 1 (see §
4.3.3.). The proportional relationship is as follows:
X = Volume = (A x t) +B
Coefficients A and B entered by the user.
Pulse specification
T :
min
T :
max
Definition:
Delay between 2 pulses:
Practical examples:
- 1 Filling cans of 5, 10 and 50 litres respectively. The following values can be entered:
A = 5 l/s
B = 0 l
The activation times for binary data input 1 for the three volumes are as follows:
Volume (l)
Duration (s) 1
- 2 Doses of chemical products as a function of required concentration. Volumes of 110,
120, 130, and 150 litres. The following values can be entered:
A = 5 l/s
B = 100 l
The activation times for binary data input 1 for the three volumes are as follows:
Volume (l)
Duration (s) 2
Notes:
- The activation time for the binary data input must always be lower than the actual filling
time. A margin of safety should be allowed when choosing the coefficients A and B.
- The coefficients A and B should be chosen such that the activation times for the binary
data input should be efficient. In the example 2, one could have choosen A = 100 l/s and
B = 0 l. The resulting activation times would be 1.1, 1.2, 1.3 and 1.5 seconds. In this case
the distributed doses would be less accurate.
BATCH CONTROLLER SE35
A Coefficient of proportionality (/s;...)
B Offset (l;...)
t Duration of input 1 activation (ms, s;...)
X Dosing volume (l;...)
100 ms
300 s
5 ms
min 100 ms
5 10 50
2 10
110 120 130
4 6
E-14-
150
10
8035