User manual for flow meter with pulse input SPI-94
7.3.1.
“rELAy1” menu
This menu allows to configure the operation mode of relays and LEDs marked „
R
” (e.g. „
R1
”).
If there are few relay outputs available, then every output has its own configuration menu (e.g.
menu „rELAy2” for relay (LED) „R2”). Principle of the relays operation is described in
paragraph
CONTROL OF THE RELAY OUTPUTS
.
•
The relay outputs and LEDs (named
R
) can be controlled by due to current flow
rate, stored peak value, or total flow counter,
•
If device is not equipped with one or more relay outputs, menus refer to this
relays are available, but apply to LED indicators only. In such case LEDs
indicates exceeding of particular thresholds.
“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:
“lit.”
- Litres
“m 3”
- cubic meters
25
i
i
