Indirect Calibration - Grundfos DME Instrucciones De Instalación Y Funcionamiento

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 4.17.
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 68 °F
(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
20 feet.
• The suction lift must be between 4 inches and
5 feet.
Pump type
0.0-
14.5
DME 2 1.4
DME 8 3.5
DME 12 2.1
DME 19 18.3
DME 48 24.3
Adding the value:
Fig. 25 Adding a table value to the default factory calibration value
Values to be added to the calibration value at various pressures [psi]
14.5- 29.0- 43.5-
29.0 43.5 58.0
1.1 0.8 0.5
2.7 2.0 1.2
1.3 0.4 –0.4
12.2 6.1 0
8.3 –8.3 –
Set value
to table value
+ display value
58.0- 72.5- 87.0-
72.5 87.0 116
0.2 –0.2 –0.6
0.4 –0.4 –1.6
–1.3 –2.1 –3.4
–6.1 –12.2 –21.4
– – –
Operating display
116- 145- 174-
145 174 203
–1.2 –1.8 –2.4
–3.1 – –
– – –
– – –
– – –
Operating display
without changes
203- 232-
232 261
–3.0 –3.6
– –
– –
– –
– –
27