User manual for - FLOW METER SPI-N118
flows through valve during closing.
Number of batches is counted by another counter (
number of batches counter
)
and stored
into the non-volatile memory
.
To display the value of this counter use
[^]
or
[v]
button. After
that message
”bAtCnt”
and content of
number of batches counter
are displayed
alternatively. To clear this counter press
button while device displays it and confirm by
pressing
[ETNER]
button. Every initialisation of batcher (start of batching) causes
incrementation of
number of batches counter.
If parameter
„SourCE”
of
relay (other than
R1
) is set to
„PrE r1”
then parameters
„
SEt P
” and „
SEt P2
” of particular relay means control advance of this relay in relation to
threshold of relay
R1
(„
SEt P
” parameter in „
rELAy1
” submenu). In other words, first threshold
of relay
R2
equals
SEt P
R1
−
SEt P
R2
and value of its second threshold equals
SEt P
R1
−
SEt P2
R2
. Thresholds of other relays (if available) are calculated in the same way.
Relays working in this mode can be used to control additional valve of the batcher.
If relay other than
R1
should change its state at the end of batching (simultaneously
at turning relay
R1
off), it is required to set „
modE
”=”
in
” or ”
out
” and set zero value
for one of its thresholds („
SEt P
” or „
SEt P2
”).
The clearing and starting of next batching can be run automatically, with defined delay
between successive doses. To enable this feature it is necessary to set parameters:
„A rES”
(autoreset function),
„A dLy”
and
„Atunit”
(desired delay and unit of time)
of
“bAtCH”
menu.
6.3.4.
Use of the batcher counter as a marker
This feature allows to use the batcher counter for cyclic control of relays (except
R1
) by
volume of flowing medium (e.g. switching relay on after counter reaches 9 litres and switch it
off after counter reaches -10 litres, in other words generate one pulse every 10 litres. For
example to use
R2
as marker it is required to set counter as follow:
1.
Set relay
R1
to batcher mode (
„SourCE”
=
”bAt”
).
2.
Set
„
SEt P
” of relay
R1
to desired cyclic volume (e.g. 10 litres). This value defines
cycle duration expressed in units of flow (not a time) because cycle time depends on
flow speed.
3.
Set relay
R2
as batcher pre-trig (
“SourCE”
=
“PrE R1”
).
4.
Set
“modE”
of
R2
according to desired mode of operation (in this example
“modE”
=
“on”
,
however it can be also set to other modes). Depending on this parametrer,
relay will be no or off in desired phase of the cycle.
5.
Set
“
SEt P
”
(and
“
SEt P2
”
if
“modE”
= “
in
” or
“modE”
=“
out
”) of relay
R2
according to desired phase within it should be on (and off). These values must be
lower than threshold of
R1
. Note, that time of active state of
R2
depends on flow
speed. It is recommended to set
“
SEt P
”
of
R2
to
half of
R1
threshold but it is not
necessary (in this example set “
1
”, what causes that
R2
will be activated when
batcher counter reaches 9 litres ).
6.
Switch on autoreset of batcher counter
(
„A rES”
=
„on”
)
and set
„A dLy”
to 0.
Note that
R1
is switched off for a short period every time batcher counter is cleared, what can
be used to any purpose.
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