Indirect Calibration - Grundfos DME 12 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 re-
set the pump to the factory calibration value, activate
the "DEFAULT" function, see section 4.17.
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
DME 2 1.4
DME 8 3.5
DME 12 2.1
DME 19 18.3 12.2
DME 48 24.3
Adding the value:
Fig. 25
1-2 2-3 3-4 4-5
1.1 0.8 0.5 0.2
2.7 2.0 1.2 0.4
1.3 0.4 -0.4 -1.3
6.1 0 -6.1
8.3 -8.3 -
Set value
to table value
+ display value
5-6 6-8 8-10
-0.2 -0.6 -1.2
-0.4 -1.6 -3.1
-2.1 -3.4 -
-12.2 -21.4 -
- - - -
Operating display
10-12 12-14 14-16 16-18
-1.8 -2.4 -3.0
- - -
- - -
- - -
- - -
Operating display
without changes
-3.6
-
-
-
-
27