Burkert 8605 KK Instructions De Service page 33

increase in the coil current above the upper value does not result in any
noticeable increase in the flow rate. This value corresponds to the nominal
and actual value of 100 %. The setting range depends on the device ver-
sion being used.
Current values outside the working range are irrelevant for a control. The
range of the input standard signal (e. g. 0 to 10 V) is therefore set to the
working range of the coil current (see chapter 6. Configuration and Func-
tion).
For a given valve type (coil version), the working range depends on the nom-
inal size of the valve and on the pressure ratios (inlet and return pressure) in
the system. The setting has to be made under typical operating conditions.
Illustration 8-8: AdJ (Adjust) - Adaption of the coil current
nOTe!
• A flow indicator is necessary for the setting of the working range. Deter-
mine the start and the achievement of the maximum flow rate with this
indicator.
• The absolute precision of the flow indicator is not crucial!
8605 -