70
zero, the run-time clock will be stopped and the
HOLD annunciator will be activated. The pulse
input indicator will continue to rotate until the
input pulse frequency falls below 0.5Hz i.e. 2
seconds between input pulses.
Note:
When the rotational scale factor
‘r-SCALE’, the timebase ‘t-bASE’, or the position
of the speed
display decimal point are changed,
clip-off will automatically be reset to zero. If
required, a new clip-off threshold must then be
entered.
4.5.10 Local reset of run-time display:
‘LOC- rSEt’
This function allows the local reset of the run-time
display to be turned on or off. When turned on,
operating the
Up
and
Down
push-buttons
simultaneously for more than two seconds in the
display mode will reset the run-time display to
zero. This allows the operator to reset the run-
time while the instrument is displaying speed.
To check the status of the local reset function
select 'LOC-rSEt' from the menu and press
P
which will reveal if the function is 'On' or 'OFF'. If
necessary press the
Up
or
Down
button to
change the setting, followed by the
E
button to
return to the main menu.
The run-time display may also be reset to zero
remotely by connecting terminals 7 and 8
together. See Figs 4.1 and 4.2
4.5.11 Resetting run-time grand total:
‘CLr. Gtot’
The grand total is a separate eight digit counter
which duplicates the run-time display, but is not
cleared when the run-time display is reset to
zero.
The grand total run-time may be viewed when the
instrument is in the display mode by operating
the
E
and
Down
push-buttons simultaneously.
The grand total can only be reset to zero from the
'CLr. Gtot' function in the main programme menu.
To zero the grand total select 'CLr. Gtot' and
press
P
which will cause the instrument to display
'Clr. no' with 'no' flashing. Continuously press
the
Up
or
Down
push-buttons until 'CLr. YES' is
displayed and then press
P
which will result in a
'CLr.0000' prompt with one digit flashing. Using
the
Up
, and
Down
buttons and the
P
button to
move to the next digit, confirm the request by
entering the password 'SurE'. Note 'S' is entered
as '5'. Pressing
E
will then reset the grand total
counter to zero and return the instrument to the
'CLr. Gtot' prompt in the main menu.
WARNING
After resetting the grand total to
zero the old grand total can not
be recovered.
4.5.12 Security code: ‘CodE’
The calibration and conditioning of the BA364D
may be protected by a four digit security code
which must be entered before access to the
programme menu is allowed. New instruments
are programmed with the default security code
0000 that allows unrestricted access to all
programming functions without entering a
security code.
To enter a new security code select 'COdE' from
the menu and press
P
which will cause the
instrument to display the current security code.
Each digit of the code can be changed using the
Up
and
Down
push-buttons, and the
P
button to
move to the next digit. When the required code
has been entered press
E
to return to the main
menu. The revised security code will be activated
when the instrument is returned to the display
mode.
If the security code is lost, access to the
programmable functions can be obtained by
moving the internal security link to the override
position as shown in section 1.6.1. The original
security code can then be viewed by selecting
'COdE' from the main menu and pressing
P
.
