Burkert Type 7800 User Manual
Page 25
27
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.
Adding the value:
Fig. 25
Pump type
Values to be added to the calibration value at various counter pressures [bar]
0-1
1-2
2-3
3-4
4-5
5-6
6-8
8-10
10-12
12-14
14-16
16-18
7800-
2 1.4 1.1 0.8 0.5 0.2 -0.2 -0.6 -1.2 -1.8 -2.4 -3.0 -3.6
3.5
2.7
2.0
1.2
0.4
-0.4
-1.6
-3.1
-
-
-
-
2.1
1.3
0.4
-0.4
-1.3
-2.1
-3.4
-
-
-
-
-
18.3
12.2
6.1
0
-6.1
-12.2
-21.4
-
-
-
-
-
2 4.3
8.3
-8.3
-
-
-
-
-
-
-
-
-
Operating display
without changes
Operating display
Set value
to table value
+ display value
7800-8
7800-12
7800-19
7800-48