User manual - FLOW METER SPI-638
7.3.6.
“totAL” menu
This menu allows to configure total flow counter displaying mode.
“t PrEc”
-
decimal point position
(precision of total flow counter). It can be set to:
“ 0“
“ 0.0“
“ 0.00“
“0.000“
Decimal point position is changed by
[^]
,
[v]
buttons.
“t coEF”
- conversion coefficient. Changes analogue input unit to any unit used to calculate
total flow by multiplying current flow measurement value (after calculating user
characteristics in
“I CHAr”
parameter) by value in
“t 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
t coEF
= 264172 (no decimal places)
Decimal point position in “
t PrEc
” and “
t coEF
” parameters does not affect on each
other.
If total flow counter value in
not converted
units reaches limit value (which is
4294967295 999. 999
), then total flow counter value in converted units will be
automatically set on
4294967295 999, 999
value and overload status in Modbus
register will be also set. This situation can occur when “
t coEF
” parameter is
greater than 1. In order to resume counting a user should reset the total flow
counter.
If total flow counter value in
converted
units reaches limit value (which is
4294967295 999. 999
), then value in registers and on display will be locked on
4294967295 999. 999
overload status in Modbus register will be also set. This
situation can occur when “
t coEF
” parameter is equal or lower than 1. In order to
resume counting a user should reset the total flow counter. Not converted total flow
value will be still counted according to settings.
“t unit”
- the unit of volume used for total flow counter displaying . It can be set to: (
”unit“
-
units, or
“1000un”
- thousands of units). Units expressed by
“t unit”
are
conventional, and can be exchanged to any other pair of units e.g. for powders it
can be
kilogram
and
tonne
, for liquids it can be
litre
or
cubic meter
.
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