Input functions
7
SYCON
3000 H
Input functions
From the 3 available input functions, maximally 2 can be programmed for the two inputs of the ana-
lyser in the programme steps 3.1 and 3.2 or can be deactivated totally. Each function can only be
implemented once.
In programme step 3.3, it is determined whether the inputs are to be active with open or closed con-
tact.
Start analysis
An analysis of the water can only be started
from this input if the instrument is in the stand-
by position and indicator is available.
In programme step 4.1, a delay time period
can be entered.
Applications: The analysis has to be started
from an extern control station.
Stop analysis
If the input is activated, no analyses are initi-
ated by a time interval, by a volume interval or
over the input "Start analysis". Only the man-
ual triggering over the "START" button is possi-
ble. A running analysis is aborted by a flushing
operation.
In programme step 4.2, a delay time can be
entered.
Once the input is activated information are
displayed in the upper left corner of the dis-
play.
Analysis interval has not ended yet:
Display: "STOP" in change with the display of
the rest time of the interval
Analysis interval has ended:
Display: "STOP"
Applications:
No analyses should be conducted in the case
of water shortage or pressure deficiency.
Analyses should only be performed if a storage
reservoir is filled or if an osmosis system is in
operation.
Analyses should only be conducted at certain
times (external timer).
This input is specially designed for the using of
a flow monitor. Short impulses will be added to
one impulse.
Example: Using of a flow monitor
Program step 4.2 = 10 Sec.
An analysis starts if the contact of the flow moni-
tor is activated longer then 10 seconds.
An analysis also starts if the contact is activated
5 times for 2 seconds, e.g. if water is only
taken out for a short periode of time.
Reset relay
With this input it is possible to clear the relays
of the output functions "Permanent signal 1",
"Permanent signal 2", "Signal relay" and the
built-in signal tone generator from a switch
station.
In programme step 4.3, a delay time can be
entered.
Attention!
The display of the message in the LCD display
is not deleted. It disappears automatically as
soon as the cause of the message is removed
or a new analysis has been started.
If the display "Analysis stop" appears, an
analysis must be started manually.
With the corresponding programming, the start
of a new analysis can also occur through an
external switch (see Start analysis).
Water meter
An analysis can also be started after the pas-
sage of a certain volume of water. To this end,
the Water volume 1 and the Water volume 2
are entered in the programme steps 4.4 and
4.5. The Water volume 1 is taken into consid-
eration if, after an analysis, the limit value has
not been exceeded and the Water volume 2 if
the limit value has been exceeded. This allows,
after an overrun of the limit value, the follow-
ing analyses to be executed in shorter inter-
vals.
In programme step 4.6, the pulse interval of
the water meter is entered.
The resetting of the programmed flow rate oc-
curs at each analysis start and is corrected ac-
cording to the Water volume 2 in the event of
the limit value being exceeded.
Note:
In several quantity-dependent controls for sof-
tening plants, a floating (potential-free) relay
contact is available that simultaneously con-
nects to the contact of the water meter. This
relay contact can also be implemented.
A maximum of 3 pulses per second are regis-
tered.