Indirect Calibration - Grundfos DMS Serie Montage- Und Betriebsanleitung

6.2 Indirect calibration

A value from the following table is to be added to the
default factory calibration value in the display. To
reset the pump to the factory calibration value, acti-
vate the "DEFAULT" function, see section 4.7.
To use the values, the following must be fulfilled:
• The viscosity and density of the liquid to be dosed
must not differ considerably from water at 20°C.
• A GRUNDFOS installation kit or corresponding
foot valve, injection valve and hose diameter must
be used.
• The length of the dosing hose must not exceed
6 metres.
• The suction lift must lie between 0.1 and 1.5 me-
tres.
Values to be added to the calibration value at various counter pressures [bar]
Pump type
0-1
DMS 2 1.4
DMS 4 2.2
DMS 8 2.0
DMS 12 1.3
Adding the value:
Fig. 11
1-2 2-3 3-4
1.1 0.8 0.5
1.6 1.0 0.3
1.2 0.4 -0.4
0.4 -0.4 -1.3
Set value
to table value
+ display value
Operating display
4-5 5-6 6-8
0.2 -0.2 -0.6
-0.3 -1.0 -1.9
-1.2 -2.0 -
- - -
Operating display
without changes
8-10 10-12
-1.2 -1.8
-3.2 -
- -
- -
19