To start the pump press the START/STOP button (the Stop icon will be extinguished or illuminated respectively).
Note. If a current higher than the current value at which the pump doses at its maximum flow rate reaches the pump (e.g.:
current setting H = 10, current received = 15 mA), the pump will continue to dose at the maximum flow rate that has been
set, however the flow rate shown on the display will start to flash, indicating that the input current is higher than the value
that has been set.
Note. If a current lower than the current value at which the pump doses at its minimum flow rate reaches the pump (e.g.:
current setting L = 5, current received = 4 mA), the pump will no longer dose. Also, the flow rate shown on the display
will start to flash, indicating that the input current is lower than the value that has been set.
WARNING: The pump may stop due to a possible halt/stop allarm signal given by the level probe (Level icon
illuminated and Alarm LED steady on), see the section on Checking the level of the liquid to be dosed.
4) Mode: 20—4/0
In this mode, the pump will dose at a flow rate that is proportional to an input signal of the 20-4/0 mA type.
It is possible to establish a current value at which the pump will dose at the minimum rate (0 stroke/min), and a current
rate at which the pump will dose at the maximum flow rate,
equal to the value of the flow rate that we have established
(see the section on Adjustment of the flow rate).
Press the Prog button and select the PROPORTIONAL MODE (see Programming).
By pressing the Enter key once and the Prog key three times (see diagram), the 20—4/0 mode will be entered directly
and the indication I will appear on the display. The 20--4/0 icon will start to flash.
By pressing the Enter key, this mode is “entered”, and the letter L will appear on the display together with the current
value at which the pump will dose at the minimum rate.
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