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3.3.2.33.3.2.3 Counter TestCounter Test
The counter test monitors TTL transitions that are connected to the counter input of the UDAS
unit. Depending on the mode that you select, the TTL level of the gate pin may effect the readings.
For all of the modes except Measure frequency, data is automatically read and displayed four
times per second.
For the Measure frequency mode, the rate of display updates may be slower depending on the
gate time selection.
Checking the Reset counts every display check box causes the counter to reset to zero after every
read and display cycle. The interface is shown in FIGURE 3.5, UDAS SYSCHECK Counter Test in
Count Mode.
FIGURE 3.5 UDAS SYSCHECK Counter Test in Count Mode