Bronkhorst CORI-FILL - Manual (Page 13)

9.17.075
Bronkhorst Cori-Tech BV
13
6 Preparing the counter for batch counting/dosing
After setting the counter mode in “up to limit” and giving the right limit (=batch),
the overrun correction and counter control gain need to be entered, depending on
short time dosing using a shut-off valve or proportional filling (see subsequent
sections 7 and 8).
The counter control gain is of no influence when the dosing is performed with a
shut-off valve.
‘New setpoint on limit’ should be enabled. The ‘New setpoint’ value will normally
be = 0% (= setpoint when reaching the batch).
‘Output’ can be set as shown left, but will not have any effect on batching.
‘Reset’ will determine the enabled sources for resetting the counter.
Following options are available:
FLOW-BUS(Bus and RS232)
Keyboard (using the button on the instrument)
Ext. (external input on optional pc-board)
Analog setpoint (external setpoint input)
6.1 Analog operation
CORI-FILL can also be used in analog mode. The setpoint will be determined by analog signals like 0..5V/0..10V/0..20mA/4..20mA.
The counter will be reset by an analog signal of 0V or 0mA. Any analog signal > 0 (over 2%) will restart the next batch.
When using this option in on-off dosing mode (with shut-off valves) the setpoint value is irrelevant, as long as it is
>2%. For proportional filling with a proportional valve the setpoint value is important!
Example analog operation:
Analog setpoint
change for reset
and starting next
batch
Flow rate
Correct
settings
via RS232
(just once)
or