Pepperl+Fuchs DA5-IU-C Manual De Instrucciones página 20

DA5-IU-C
8.5 Weight measurement with totalizing
The quantity of granulate is to be determined
by means of flow measurement. At full flow
rate (= 10 kg/sec.), the measuring sensor
delivers 20 mA
The selected measuring range is 0 ... 20 mA.
Assign the value 0 to the lowest input signal
and 10 to the highest. To display the sum in
tons, set a factor of 0.001.
The decimal point is only for display
!
purposes. For a current value dis-
play of 10.0, the totalizer would add
every time 100.
This must be taken into considera-
tion accordingly when setting the
factor.
If the current flow rate is to be dis-
played with one decimal place, set
the factor to 0.0001.
Page 10 (R60046.9398 - Index 1)
8.6 Flow measurement with totalizing
The flowing quantity and the totalized quantity
are to be displayed alternately. The measuring
sensor with linear characteristics (in case
of non-linear sensors, install linearizing
components upstream) delivers 4 mA when
stopped and 20 mA at full flow speed, which
corresponds in this example to 90 l/minute.
Select with "range" the measuring area 4...20
mA and, for the minimum and maximum input
signal "lo.act" and "hi.act", the respective
factory setting.
Assign the display value 0 to the lowest input
signal "lo.display" and assign the value 1.5
(corresponding to l/second) to the highest input
signal "hi.display".
Set the decimal point for the totalizer "dp.tot"
according to the expected maximum quantity:
for the maximum volume of a 100,000 l bottling
plant, select zero decimal place for the totalizer
and, as this still is not sufficient, use "scaler"
0.01 to increase the display range by two
places, in order to display the totalized quantity
in hectoliters.
Press the right key to switch between the dis-
play of the current value and the display of the
totalizer. Various factors allow displaying the
totalized volume also in other units, e.g. with
factor 2 in 0.5 l bottles or with factor 2.6420
in gallons.