100
Issue 21
TX500 series technical manual
The stop-watch, once started counts continually until terminal count, and does not stop once
display pages are changed.
•
A toggle button provides
<START/STOP>
indication. On system startup the
stop-watch is shown as stopped, after which it always displays the current
operational state as set by the operator. When the stop-watch reaches terminal
count (999:59 or 000:00) the count state is changed from start to stop.
•
A button provides
<COUNT UP>
and
<COUNT
DOWN>
indication. On system
startup the stop-watch is shown as counting
<UP>
, after which it always displays
the current operational state as set by the operator. When the stop-watch reaches
terminal count (999:59 or 000:00) the count direction indication remains
unchanged in its current state.
•
A button provides stop watch
<RESET>
. If selected while counting up the count is
reset to zero and the count continues, if selected while counting down the preset
count down time is reloaded and the count continues.
6.1.5.2 Segment timer
In segment mode the timer value is displayed along with four button controls. In this mode,
the timer is always active and counts independently to the stop-watch and segment count,
even if timer mode is never selected.
It is always automatically started at the start of each transition and can be manually started
and stopped once counting. Once started the timer counts up each second and can only be
stopped manually or when the terminal count of 999:59 is reached.
At the start of each transition the timer always counts up from the zero. The
<SEG HOLD>
button stops the count from being zeroed at the start of each transition.
The timer is locked to the station TC input. Due to this feature a count started by a transition
half way through a second will count that half second as a second to keep in step with the
station TC.
The
<RESET>
button resets the count to zero from where it continues.
6.1.5.3 Remainder timer
In remainder mode the timer value is displayed along with three control buttons. In this
mode, the timer is always active and counts independently to the stop-watch and segment
count, even if timer mode is never selected.
It is always automatically started at the start of each transition and can be manually started
and stopped once counting. Once started the timer counts down each second and can only
be stopped manually or when the terminal count of -999:59 is reached.
