Measurement Computing Data Translation DT3034 User Manual page 102

Signal Source
External
Gating
Switch
Figure 30: Connecting Event Counting Signals
(Shown for Clock Input 0 and External Gate 0)
Figure 31 shows an example of an event counting operation. In this example, the gate type is
low level.
high level
disables operation
Gate Input
Signal
External C/T
Clock
Input Signal
Figure 31: Example of Event Counting
User Clock Input 0
Digital Ground
Digital Ground
low level
enables operation
3 events are counted while
the operation is enabled
event counting
operation starts
DT740 Screw
Terminal
TB58
TB60
TB61
TB83
Gate 0
TB108
Digital Shield
event counting
operation stops
Principles of Operation
101