pro bel TX 410 Operator's Manual page 69

Pro-Bel
Once active the timer counts down each second and only can only be
stopped manually or when the terminal count of -999:59 is reached.
The time preset is set using the left hand shaft encoder to set the
minute (MMM) value, and the right hand shaft encoder is to set the
second (SS) value.
The <ENTER>push button only appears if the remaining count has
been stopped and a positive remaining time is visible on the display.
Selecting this push button calculates the duration of the programme
remaining from the last transition by performing the calculation shown.
The push button is then removed from the display and the duration is
displayed as the remaining count which is automatically started (the
<COUNT> push button automatically toggles from stop to start).
Duration = currently remaining count - (time of day - time of transition).
HU-TX 410OG
TX 410 operators guide
69