BEKA BA334NG, Manual

Page: 15 / 46

15
Display Summary of function
di5P-1
Upper display
Defines whether
rAtE
or
totAL
is
shown on the upper display. The
other variable will be shown on the
lower display, providing the lower
display is
on
in function
dI5P-2.
See section 6.9
di5P-2
Lower display
Turns the lower display, which
normally shows rate,
on
or
oFF
.
See section 6.10
dP
Decimal points
Defines the position of the decimal
point in both the rate and total
displays.
See section 6.11
FACtor
Flowmeter K-factor
The rate totaliser pulse input is
divided by
FACtor
, which is usually
set to the K-factor of the flowmeter,
thus converting the flowmeter output
into engineering units.
FACtor
may
be adjusted between
0 . 0001
and
99999
.
When the 16 segment lineariser
Lin
is selected in the Function sub-
menu, up to 16 values for
FACtor
may be entered, each at a specified
input pulse frequency to
compensate for flowmeter non-
linearity.
See section 6.12
5CALE . t
Total Scale Factor
5CALE . t
is a dividing factor that
converts the pulse output from
FACtor
into the required total
display in engineering units. e.g. if
the output from
FACtor
is one pulse
per litre and the total display is
required in thousands of gallons,
5CALE . t
should be set to
4546 .1
which is the number of litres in
1,000 imperial gallons.
5CALE . t
may be adjusted between.
0 . 0001
and
99999
.
The total flow display is independent
of the rate display.
See section 6.13
Display Summary of function
5CALE . r
Rate scale factor
5CALE . r
is a dividing factor that
converts the pulse output from
FACtor
into the required rate
display in engineering units. e.g. if
the output from
FACtor
is one
pulse per litre and the rate display
is required in gallons,
5CALE . r
should be set to
4 . 5461
which is
the number of litres in an imperial
gallon.
5CALE . r
may be adjusted
between
0 . 0001
and
99999
. The
flow rate display is independent of
the total flow display.
See section 6.14
t-bA5E
Timebase
Selectable multiplier allowing flow
rate to be displayed in units per
second, per minute or per hour.
Select:
tb-01
for flow / second
tb-60
for flow / minute
tb-3600
for flow / hour
See section 6.15
FiLtEr
Display filter
An adjustable digital filter to reduce
noise on the rate display is
controlled by two parameters each
adjustable between
0
and
9
. The
first digit defines the amount of
filtering applied to the display, the
second deviation from the
displayed rate at which the filter
will be overridden and the rate
display will move rapidly to the
new value.
See section 6.16
CLP-oFF
Clip-off
To prevent totalisation of very low
flow rates, clip-off enables the user
to select a flow rate display below
which totalisation is inhibited.
See section 6.17