Sterlco SF1000 Gravimetric Additive Feeder - Manual (Page 17)

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4.4.3 Setting desired Operation Mode
Available operation modes are:
"0"
– Gravimetric mode (with machine feeding time)
"1"
– Gravimetric mode (with SF-1000 constant time)
"2"
– Volumetric mode (with machine feeding time)
"3" – Volumetric mode (with SF-1000 constant time)
 To change mode, enter Parameters screen, select the Mode line and set the new
desired Mode number (using setting procedure described in 4.4.1)
 Proceed with other parameters or press to return to Main Screen
4.4.4 Setting Max/Min SF-1000 Hopper Weight Parameters
Once the weight of the material in the hopper decreases below "Minimum hopper weight"
set low limit, the controller instructs the Venturi loader to start refilling the hopper.
The refilling operation will continue either until material weight reaches "Maximum hopper
weight" high limit set value, or until 60 seconds have passed (whichever comes first).
If, for some reason, the MB/Additive weight in the hopper stays under the Min Fill low limit
value for more than 120 seconds, despite the filling operation, an “Alarm” screen will be
displayed, indicating a
“No fill” situation (see note 1).
Factory setup values (default values) are 1100g for "Max Fill" and 400g for "Min Fill".
The user may either leave this as it is or change it according to specific needs.
 To change changing current Minimum or Maximum hopper weight value, enter
"Parameters" screen, select the Minimum or Maximum hopper weight line and set
the new desired value (using setting procedure described in 4.4.1)
 Press to return to Main Screen
Notes:
1. If desired MB % has been set to "0", there will not be an automatic filling, even when
the material weight reaches Min Fill level.
2. Level values should be always set so that Min weight < Max weight.
3. When first starting the controller (by switching on the power), if the hopper is empty or
its material weight is under the Min Fill value, the Venturi loader will perform
automatic filling
)unless the MB/Additive % is set to "0").
4.4.5 Gravimetric/Volumetric switch (located on front panel):
Allows you to switch easily from any mode to Mode 2 (Volumetric)
– this can be useful when
restarting the IMM after stopping due to some fault.
 VOL.: Switches automatically to Mode "2"
 GRAV. Returns to last mode