Step 7
Enter the speed timebase
The speed timebase determines if the
Tachometer displays speed per second,
per minute or per hour. In this example
revolutions per minute are required.
Using the
&
or
*
push button select
t-bA5E
from the configuration menu and
press
(
. Again using the
&
or
*
push
button select
tb-60
from the three options
which will multiply the speed display by 60.
Enter the selection and return to the
t-bA5E
prompt in the configuration menu
by pressing
)
.
See 6.11
Step 8
Adjust the display filter
The digital display filter has two
independent adjustable parameters
enabling the rate display response to be
tailored for optimum performance. The
filter parameters are controlled by a two
digit number. The first digit defines the
amount of filtering applied to the display,
for initial configuration it is recommended it
is set to 2 which is a time constant of 4.3
seconds.
The second digit defines the deviation from
the displayed speed at which the filtering,
defined by the first digit, will be overridden
and the Tachometer speed display will
move rapidly to the new value. It is
recommended that the second digit is
initially set to 0.
After configuration both parameters may
require further adjustment to provide a
stable display with an acceptable step
response.
To allow the effect of filter changes to be
seen immediately, the live speed display is
shown on the lower display in place of run-
time while the filter parameters are shown
and being 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
buttons. 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
)
.
See 6.12
Step 9
Define clip-off
In this example the run-time clock is
required to operate when the display
speed equals or exceeds 5 RPM. The
clip-off threshold should therefore be set
to 5.
Using the
&
or
*
push button select
Clp oFF
from the configuration menu.
Press
(
which will reveal the current
clip-off threshold in RPM i.e. the same
units already selected for the speed
display. Adjust the display to
00005
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
prompt in the
configuration menu by pressing
)
.
See 6.13
Step 13 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 run-time
display and grand total run-time from the
display mode without entering the
configuration menu.
In this example the operator is required
to reset the run-time display but not the
grand total run-time when the BA314NG
Tachometer is in the display 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 therefore 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 run-time reset function
clr gtot
and press
(
. This is not
required therefore 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 6.15 and 6.16
26
Summary of Contents for BA314NG
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