BEKA BA384E, Manual

Page: 41 / 68

41
Using the
&
or
*
push button select
FiLtEr-A
from the configuration menu
and press
(
. The first digit, which
controls the filter time constant, will be
flashing and should be set to
2
using the
&
or
*
push button. The
(
button
will transfer control to the second digit,
which controls the step response and
should be set to
0
in the same way.
Finally, enter the selection and return to
the
FiLtEr
prompt in the configuration
menu by pressing
)
.
Repeat for input b using the
FiLtEr-b
function.
See 6.17
Step 14 Define clip-off
To prevent totalisation of low flow rates
clip-off defines an adjustable flow rate
threshold below which totalisation is
inhibited. In this example it is required
that totalisation does not occur at flow
rates below 10 gallons per hour on each
input.
Using the
&
or
*
push button select
CLP . oFF-A
from the configuration menu.
Press
(
which will reveal the existing
clip-off threshold in gallons per hour i.e.
the same units already selected for the
rate display. Change the display to
10
using the
&
or
*
push buttons to
adjust the flashing digit and the
(
button to transfer control to the next
digit. Finally, enter the new clip-off
threshold and return to the
CLP . oFF-A
prompt in the configuration menu by
pressing
)
.
Repeat for input b using the
CLP . oFF-b
function.
See 6.18
Step 15 Local reset of total and grand total
Two separate functions in the
LoC,clr
sub-menu may be individually activated
to allow the operator to reset the
individual totals and the composite grand
total displays from the totalising mode
without entering the configuration menu.
In this example the operator is required
to reset the total displays but not the
composite grand total display when the
BA384G Rate Totaliser is in the totalising
mode.
Using the
&
or
*
button select
loc clr
in the configuration menu and press
(
which will reveal the sub-menu.
Again using the
&
or
*
button select
the local total reset function
clr tot
and
press
(.
This is required so using the
&
or
*
button select
on
followed by
)
to return to the
clr tot
prompt in the
sub-menu.
Using the
&
or
*
button select the
local grand total reset function
clr gtot
and press
( .
This is not required so
using the
&
or
*
button select
oFF.
Enter the selection and return to
the
loc clr
prompt in the configuration
menu by pressing the
)
button twice.
See 6.20 and 6.21
Step 16 Reset the grand total to zero
Before completing configuration, the
Rate Totaliser’s composite grand total
should be reset to zero. Using the
&
or
*
button select
CLr . Gtot
in the
configuration menu and press
(
which
will cause
CLr. no
to be displayed. Again
using the
&
or
*
button select
CLr YE5
and press
(
which will result in a
0000
display with one digit flashing. This is a
request for the instruction to be
confirmed by entering
5urE
using the
&
or
*
buttons to set each digit and the
(
button to move control to the next
digit.