Burkert SE 56 Manuel D'instructions page 29

Available units of mass and volume:
cm3 Cubic centimetre
ml Millilitre
l Liter
dm3 Cubic decimeter
dal Decalitre
hl Hectolitre
m3 Cubic metre
When a mass measuring unit is set, the specific gravity function is automatically enabled by the
system. The time measuring unit may be chosen among the values:
s=second,m=minute,h=hour,d= day.
(POS. 2.3) Measuring unit and number of decimals for the totalizers
Setting the measuring unit and number of decimals to display the totalizers or the volumes to batch. To
set the measuring unit, position the cursor on the field of the current measuring unit; To set the type of
unit, position the cursor on the blank space between the measuring unit and the numeric value; To set
the number of decimals for the totalizers position the cursor on the numeric field and choose one of the
possible combinations: 1000-01.00-001.0-00001.
*(POS.2.4-2.5) Pulse value channel 1-2 and measuring unit of tot.
Setting the pulse volume corresponding to channels 1-2 and the totalizers measuring units. There are
three fields to fill in to set this parameter, from left to right: 1) measuring unit, 2) unit type and 3)
numeric value. The selection is performed by positioning the cursor on the field to be modified. To
change the unit type (metric, British or American, mass or volume) just position the cursor on the blank
space between the measuring unit and the numeric value. When the nominal diameter is set to zero it
is possible to modify only the numeric field since the measuring unit stays at meter (m) or feet (ft). The
possible measuring units are those above described
(POS.2.6-2-7) Pulse duration channels 1-2
Setting the duration of the pulse generated on channel 1-2. Its value is expressed in milliseconds and
has to be between 0.4 and 9999.99. When the high frequency output is present, then the minimum
value can go down to 0.04 milliseconds.
ATTENTION: since the instrument cannot detect which type of device it is connected to, it is up to the
user to verify the set pulse duration is compatible with the external device processing such pulses. If,
for example, an electro-mechanical pulse counter is connected, then two kind of problems may occur:
if the pulse is too long than the coil may burn or, if it is too short, the counter may not be able to count
and possibly cause the damaging of the output itself.
(POS. 3.1) Time constant
This parameter affects the integrating filter making the instrument response quicker or slower,
according to the set value. A higher value corresponds to a more stable but slower measure, a smaller
value the opposite. The most common values are from 1 to 5 seconds. The valid values range from 0
(integral filter disabled) to 6000.0 seconds. The following diagram shows the response of the
instrument for a flow rate variation from 0 to 100% within the T time constant period
(POS. 3.3) Acceleration threshold
Acceleration threshold set. The acceleration threshold stands for the limit beyond which a flow rate
variation determines an immediate response at the output, without being filtered by the time constant.
This system allows the instrument to have an immediate response in case of big variations of the flow
rate, filtering (and delaying) the response to small variations. The result of that is a very stable
measure, ready to follow the process. The value is set as percentage of the full scale value from 0 to
125%. If such a value is set to zero any flow rate variation bigger than 0.5% of the full scale value will
immediately affect the outputs. The following diagram shows the instrument response in two cases: a
flow rate variation from 0 to 10% completely absorbed by the time constant effect and a variation form
10% to 100% exceeding the acceleration threshold and then immediately sent to the output. In actual
fact there is always a minimum time between the measure acquisition and the outputs update.
in3 Cubic inch
Gal American gallon
GAL British gallon
ft3 Cubic foot
Bbl Standard barrel
BBL Oil barrel
yd3 Cubic yard
kgl KAmerican gallon
KGL KBritish gallon
MENU 3.MEASURE
28
SE 56
G Gram
Kg Kilogram
T Ton
Oz Ounce
Lb Pound
Ton short tons
[UM.tot:dm³X.XXX]
[PLS1-2=dm³X.XXXXX]
[TPLS1-2=msXXXX.XX]
[TCONST=s XXXX.X]
[SKIP THR=%XXX]