User manual - FLOW METER SPI-73
“vALUE”
- parameter defining kind of result using to control state of this relay.
It can be set to one of two values:
“Flo”
- relay is controlled due to current flow rate value or stored peak of flow rate
(see “Hold” menu),
“tot”
- relay is controlled due to total counter result
“SEt P”
- first threshold of the relay (range 0 ÷ 999999).
Threshold is the medium value of
relay hysteresis.
“SEt P2”
- second threshold of the relay (range 0 ÷ 999999). This threshold is accessible
when
”modE”
parameter is set to
„in”
or
„out”
value.
Threshold is the medium
value of relay hysteresis.
“HYSt”
- hysteresis of relay (range 0 ÷ 99999). Full hysteresis of the relay is equal to 2x
“HYSt”
parameter. The relay state can change when an input signal is out of
threshold-hysteresis
to
thhysteresis
zone.
Presented parameters should be set to ensure that
”SEt P” + ”HYSt”,
”SEt P2” + ”HYSt”, ”SEt P” - ”HYSt”
or
”SEt P2” - ”HYSt”
do not exceeds the
measure range. Additionally, in two threshold mode (“
modE
”= „
in
” or „
out
”), the
hysteresis for both thresholds must not cover each other (in other case relay can't
change his state).
“t Prec”
- decimal point position (displaying precision of the relay thresholds ) when relay is
controlled due to total flow counter result. It can be set to:
“ 0“
“ 0.0“
“ 0.00“
“0.000“
Decimal point position is changed by
[^]
,
[v]
buttons.
“t unit”
- the unit of relay thresholds and hysteresis when relay is controlled due to total flow
counter result. It can be set to:
“unit”
- units
“1000un”
- thousands of units
Parameters ”
t PrEc
” and ”
t unit
” are available only if total flow counter is used to
control relay output (
“vALUE”
=
”
tot
”). When current flow rate is used to control
relays, the unit and precision of the thresholds and hysteresis are defined by
parameters
“F unit”
,
“Ftunit”
and
“F PrEc”
of menu
”Flouu”
.
“modE”
- relay operation mode:
“noACt”
- the relay is not active (permanent turned off)
“on”
- one threshold mode, the relay is turned
ON
when input signal exceeds
SEt P
+
HYSt
value
,
and is turned off back when the input signal became
lower than
SEt P - HYSt
,
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Summary of Contents for SPI-73
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