User manual - FLOW METER SPI-73
“ZEro t”
- assumed maximum delay between pulses. This parameter is defined with 0.1
second precision, in range 0 ÷ 39.9. If time between two following pulses exceeds
this parameter, than device displays zero (no flow).
If parameter
“ZEro t”
is set to value lower than parameter
“mEAS t”
, the
“mEAS t”
value is used as maximum time between two following pulses.
“mEAS t”
- minimum
measurement window
width. The „
measurement window
” means the
time period after which counted pulses are recalculated and displayed, and it is
similar to refresh rate. This parameter can be set with 0.1 sec. resolution in range
0 ÷ 19.9 sec.
If time delays between successive pulses are longer than
“mEAS t”
time, then
measurement window width is automatically fitted to input frequency.
7.3.3.
“FLouu” menu
This menu presets the measurement input and allows configuration of current flow rate
displaying mode:
“F PrEc”
-
decimal point position
(precision of flow rate displaying). It can be set to:
“ 0”
“ 0.0”
“ 0.00”
“ 0.000”
“ 0.0000”
“0.00000”
Decimal point position is changed by
[^]
,
[v]
buttons.
Change of displaying precision can require appropriate correction of relays
thresholds and hysteresis. These parameters
are not
updated automatically, due to
settings of
“F PrEc”
parameter.
“F coEF”
- conversion coefficient. Changes pulse input unit to any unit used to calculate flow
by multiplying value in
“PulSEL”
parameter by value in
“F coEF”
parameter.
Firstly, parameter editing requires to enter a value (by entering a digit in each
blinking display separately), secondly to select decimal point position (blinking dot
on selected position). There are following decimal point position options:
000000. - integer value, no decimal places,
00000.0 - one decimal place,
0000.00 - two decimal places,
000.000 - three decimal places,
00.0000 - four decimal places,
0.00000 - five decimal places,
000000
- six decimal places,
For example: 1 [ l ] = 0,264172 [US gallon ],
so
F coEF
= 264172 (no decimal places)
Decimal point position in „
Piont
” and „
F coEF
” parameters does not affect on each
other.
27
i
i
i
Содержание SPI-73
Страница 46: ...User manual FLOW METER SPI 73 46...
Страница 47: ...User manual FLOW METER SPI 73 47...