Indirect Calibration - Grundfos DME Instrucciones De Instalación Y Funcionamiento

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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

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