8.4
Calibrating the Dry Material Feeder
Required material:
n
Weighing scales
n
PE bag (capacity min. 500 g)
1.
Loosen the screw couplings to dismantle the flush fitting.
2.
Hold the PE bag (capacity min. 500 g) under the metering
pipe and fill for 1 minute.
ð
Weigh the volume of discharged powder. This is the
volume of "Grammes per minute when the potentiometer
is set at 100%".
3.
Refit the flush fitting once the powder feeder has been cali‐
brated.
8.5
Adjusting the Concentration
8.5.1
Adjusting the Concentration of the Polymer Solution in the Ultromat
®
AF / ATF
The metering rate for the dry material feeder or the concentrate
pump can be calculated from the water supply setting and the con‐
centration required. Example:
Water supply
Concentration
Metering rate of dry material
feeder / concentrate pump
AF / ATF 400, AF / ATF 1000
1500 l/h
0,1 %
1.5 kg/h
1500 l/h
0,2 %
3.0 kg/h
1500 l/h
0,3 %
4.5 kg/h
1500 l/h
0,4 %
6.0 kg/h
1500 l/h
0,5 %
7.5 kg/h
AF / ATF 2000
3,000 l/h
0,1 %
3.0 kg/h
3,000 l/h
0,2 %
6.0 kg/h
3,000 l/h
0,3 %
9.0 kg/h
3,000 l/h
0,4 %
12.0 kg/h
3,000 l/h
0,5 %
15.0 kg/h
AF / ATF 4000
6,000 l/h
0,1 %
6.0 kg/h
6,000 l/h
0,2 %
12.0 kg/h
6,000 l/h
0,3 %
18.0 kg/h
6,000 l/h
0,4 %
24.0 kg/h
6,000 l/h
0,5 %
30.0 kg/h
Calibration
Commissioning
23
