BEKA BA334NG, Manual

Page: 33 / 46

33
To allow the effect of filter changes to be
seen immediately, the live rate display is
shown on the lower display while the
filter parameters are shown and may be
adjusted on the upper display.
Using the
&
or
*
push button select
FiLtEr
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. When
entered return to the
FiLtEr
prompt in
the configuration menu by pressing
)
.
See 6.16
Step 13 Define clip-off
To prevent totalisation of low flow rates
clip-off defines a 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.
Using the
& 
or
 *
push button select
Clp oFF
from the configuration menu.
Press
(
which will reveal the current
clip-off threshold in gallons per hour i.e.
the same units already selected for the
rate display. Enter
10
using the
& 
or
*
push button to adjust the flashing
digit and the
(
button to transfer control
to the next digit. Finally, store the new
clip-off threshold and return to the
Clp oFF
prompt in the configuration
menu by pressing
)
.
See 6.17
Step 14 Local reset of total and grand total
Two separate functions in the
LoC clr
sub-menu may be individually activated
to enable the operator to reset the total
and grand total displays from the
totalisation mode without entering the
configuration menu.
In this example the operator is required
to be able to reset the total display but
not the grand total display when the
BA334NG Rate Totaliser is in the
totalisation 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 function 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 function is not required so using
the
&

or

*
button select
oFF
. Finally
return to the
loc clr
prompt in the
configuration menu by pressing the
)
button twice.
See 6.18, 6.19 and 6.20.
Step 15 Reset the grand total to zero
Before completing configuration the
Rate Totaliser’s 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 with
no
flashing. Again using
the
& 
or
 *
button select
Clr . YE5
with
ye5
flashing. Press
(
which will result
in
0000
being displayed with one digit
flashing. This is a request for the
instruction to be confirmed by entering
5urE
using the
& 
or
 *
button to set
each digit and the
(
button to move
control to the next digit.
Pressing
)
will then reset the grand
total to zero and return the instrument
to the
CLr Gtot
prompt in the
configuration menu.
See 6.21.
Step 16 Define the security code
Defining a security code prevents
unauthorised access to the
configuration menu. Using the
&

or
*
buttons select
CodE
from the
configuration menu and press
(
which will result in
0000
being
displayed with the first digit flashing.
This example requires the security
code to be 1209, using the
&

or

*
buttons set the flashing digit to
1
and
press
(
to transfer control to the
second digit. When all the digits of the
new code have been entered press
)
to store the code and return to the main
configuration menu.
See 6.22.
Step 17 Return to the totalisation mode
Configuration of the BA334NG is now
complete. Pressing the
)
button will
save the new configuration and return
the Rate Totaliser to the totalisation
mode. The BA334NG will display
dAtA
followed by
5AVE
while the new
information is being stored in
permanent memory.