User manual - FLOW METER SPI-638
For active voltage output:
”
oFF
”
- voltage output disabled
,
”
0-5
”
- voltage output enabled with 0 ÷ 5V mode
,
”
1-5
”
- voltage output enabled with 1 ÷ 5V mode
,
”
0-10
”
- voltage output enabled with 0 ÷ 10V mode
,
“
2-10
”
- voltage output enabled with 2 ÷ 10 V mode,
”
modbuS
”
- voltage output controlled via RS-485 interface.
“SourCE”
- this parameter defines kind of analogue output controlling parameter, and
can be set to one of three values:
“Flo”
- analogue output is controlled due to instantaneous flow (flow rate),
“bAt”
- analogue output is controlled due to batcher counter result,
“tot”
- analogue output is controlled due to total flow counter result.
If parameter
„SourCE”
=
„bAt”
and batcher mode is disabled, then analogue output
will be set to its alarm state defined by
„AL”
parameter in
„OutPUt”
menu.
”OUt LO”
- this parameter determines the input value for which the output signal is
minimal
(depend of output mode „
OUtmod
”).
“OUt HI”
- this parameter determines the input value for which the output signal is
maximal
(depend of output mode „
OUtmod
”).
The analogue output value is calculated due to formula given below:
Out
=
W
−
" OUt LO"
"OUt HI"
−
"OUt LO"
×
B
−
A
A
where:
W
– displayed value,
Out
– analogue output value,
B
– higher range limit (20mA / 5V / 10V),
A
– lower range limit (0mA / 4mA / 0V / 1V / 2v),
“
Out LO
” parameter can be greater than “
Out HI
”. In this case the conversion
characteristic is reversed, it means that if input value raises the output value falls.
“b Prec”
- decimal point position (displaying precision of parameters
”OUt LO”
and
”OUt HI”
)
when analogue output is controlled due to batcher counter result.
It can be set to:
“ 0“
“ 0.0“
“ 0.00“
“0.000“
Decimal point position is changed by
[^]
,
[v]
buttons.
“b unit”
- the unit of parameters
”OUt LO” and ”OUt HI”,
while analogue output is
controlled due to batcher counter result. It can be set to one of two values
:
“unit”
- units
“1000un”
- thousands of units
40
i
i
