BEKA BA537E, Руководство пользователя

Страница: 27 / 38

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 5.16
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 5.17
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 BA537E
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 5.18, 5.19 and 5.20.
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 5.21.
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 5.22.
Step 17 Return to the totalisation mode
Configuration of the BA537E is now
complete. Pressing the
)
button will
save the new configuration and return
the Rate Totaliser to the totalisation
mode.
The BA537E will display
dAtA
followed by
5AVE
while the new
information is being stored in permanent
memory.
27