ProMinent delta DLTa optoDrive Operating Instructions Manual page 49

The prerequisites are that:
Procedure
CAUTION!
Danger of too high concentrations
The metering pump can continue to dose, if the flow falls or
stops entirely.
– System precautions must be taken to prevent the
metering pump from continuing to dose in such circum‐
stances.
the flowing medium has the same density as water (1 kg/L ≜ g/cm
n
the mass concentration of the feed chemical is known - see the feed
n
chemical safety data sheet (e.g. with 35 % sulphuric acid: 35 %)
the density of the feed chemical is known - see the feed chemical
n
safety data sheet (e.g. with 35 % sulphuric acid: 1.26 kg/L ≜ g/cm
The measurement unit for liquid volume is set in the
n
'Unit' submenu, see chapter "Settings under the 'System' menu".
the
CAUTION!
The accuracy of the concentration is strongly dependent on:
– the accuracy of the metering pump calibration.
– the accuracy of the entries.
1. Calibrate the metering pump if it is not yet calibrated - see chapter
"Settings for the "Calibrate" function".
'MANUAL' operating mode (settings which may already exist
2. Select
from other operating modes remain saved.).
'ADJUSTMENT' menu, select the 'CONCENTRATION'
3. From the
menu.
4. Under the first menu option, set
tion display and press the key
5. Set the flow and press key
6. Set the mass concentration for the feed chemical and press key
7. Set the density of the feed chemical - after pressing key
continuous display appears.
[i] change to the "Concentration" continuous display (ppm
8. Using key
or %).
'System' menu in
'On' for working with the concentra‐
[P] .
[P] .
Set up
3 )
)
3
[P] .
[P] , the
49