Burkert Type 7880 - Manual (Page 36)

16 - konti-Dos
english
3.2 Modifying the control unit's Qmax and DRmax parameters
The maximum flow Qmax, depends on the version of the konti-Dos system (see paragraph 2.3).
The maximum dosage rate DRmax is defined as follows:
DR
max.
= Q
max. pump
[l/h] / Q
max.
[l/h]
When one of the Qmax or DRmax values is modified, re-calculate the second value using the
above equation and modify this value in the programming menu.
3.3 Examples of DRmax and Qmax calculations
Example 1
Qmax = 240 l/h
Qpump = 12 l/h
DR
max.
= Q
max. pump
[l/h] / Q
max.
[l/h] = 12 l/h / 240 l/h = 0,05, e.g. 5 %
Example 2
DRmax = 10%
Qpump = 48 l/h
Q
max.
[l/h] = Q
max. pump
[l/h] / DR
max.
= 48 l/h / 0,1 = 480 l/h
ATTENTION
To obtain correct dosages, these modifications should only be made
by qualified personnel.