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1
GENERAL
The VS-50 Video Stopwatch provides an economical means of precisely timing the occurrence of an event relative to
video. The VS-50 has an “onscreen” stopwatch timer that can count up or down and can output a “trigger” signal to start or
stop an event. The stopwatch counter can be operated either locally via front panel switches, or remotely via simple switch
closure inputs to the VS-50 remote control inputs. In addition, the VS-50 has a built in clock/calendar and can display both
time and date in a wide variety of user-selectable display formats, including ones which calculate and display the day of the
week according to the date entered.
The VS-50 also has provision for user entry of up to 9 lines of twenty characters each, for entering video source ID or other
captioning and titling information. All of the VS-50 setup information, operating mode selection, and titling information is
saved in a battery backed up, non-volatile memory, and restored at power up.
The VS-50 finds application in timing talent, speeches, dialogues, etc. triggering events related to video capture, as well as
security situations, documenting laboratory or other types of experiments, as well as simply for displaying time and date
within video images.
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FEATURES
•Displays Stopwatch, Time, Date, Titling, and operates in local or remote modes with all setup information retained in
non-volatile memory
•Stopwatch display can include tenths and hundredths of a second. Twelve display formats are provided to allow
selection of displays ranging from just seconds to a display of hours, minutes, seconds, tenths and hundredths of a
second. User-selectable time and date video display formats include some which automatically calculate and display
the day of the week
•Stopwatch has four modes of operation: downcounter, downcounter with auto preload, down-up counter, and up
counter.
•Auto preload counter forms an “interval” timer that can output a GPI signal at regular intervals of from one second up
to hours.
•Down-up counter can downcount to zero, output a GPI signal, then count up to display the time following the output
of the GPI signal.
•Simple switch-closure-to-ground remote control inputs allow selection of various counter functions such as counter
mode, preset, reset, start/stop, etc.
•Remote inputs can be selected as either pulse or level signals.
•GPI output can be set to output either a pulse or level signal when the counter reaches zero, on each second, or on each
minute
•Special "split screen" display mode for two smallest vertical sizes insures maximum view of video image by allowing
the user to “split” the 9 line display into 5 lines at the top and 4 at the bottom. The amount of the split is quickly and
easily user adjustable.
•Four separate setup menus for Display, Stopwatch, Time, and Date allow simple and easy user selection of H and V
character size and position, black or white characters, background on/off, time/date on/off, stopwatch mode, GPI
ON/OFF, etc.
•Internal crystal controlled clock/calendar IC has battery back-up to maintain time and date when unit is powered off.
•Operates from a small AC power adapter, which is included, or can be operated in the field from 9-to-14 volts DC
battery power.
•Available in desktop (VS-50), Rackmount (RM-50/VS), Rackmount Add-On (AO-50/VS), or Shortrack (SR-50/VS)
models