Vanguard CBCT - Manual (Page 13)

REV 1 CBCT USER’S MANUAL
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2.4 CBCT Timer Stop Input
Timer Start Input mode can be selected only when the “Main Menu” is being displayed. Select
the Timer Stop Input mode by pressing the
[ARROW] key. The LED will be lit next to the label
for the currently selected mode. The CBCT timer can be stopped in two selectable modes
described below:
• Dry Contact Mode
In this mode, the timer will look for a change in the Stop Input terminals to stop the
timer. The CBCT will output a DC voltage to the Stop Input terminals to detect the dry
contact status.
• Wet Contact Mode
In this mode, the timer will look for a change in the Stop Input terminals to stop the
timer. Under the wet contact mode, the input is looking for a change in voltage or no-
voltage condition to stop the timer. A voltage from 24 Vdc to 300 Vdc is considered as
‘Voltage Present’.
2.5 CBCT Timer Display
The CBCT displays the timer result in milliseconds and seconds on the LCD. Typical timer test
results are shown below:
INPUT VTG: 48.5
OUTPUT VTG: 33.7
TIME: 197.3mS
Status: *READY*