It is reset to zero when the next start pulse occurs. The stopwatch display is updated during timing at a rate controlled by a gate time, up to 25/s. The event time may also be displayed in HH.MM.SS clock format with 1 s resolution. The longest single-event timing interval is 999,999 hours. The event time (Item #1) may be displayed as a decimal number with six-digit resolution. This mode requires use of an Extended counter.ĭisplay. Extensive arithmetic capabilities allow display in engineering units, such as meter/sec. Rate Based on 1/Time Mode. Highly accurate rate can be displayed by taking the inverse of time.In addition, the A and B inputs can be tied together to start the stopwatch with one polarity and stop it with the other polarity. This mode allows inputs from different sources. Time can also be measured between a start pulse on Channel A (positive or negative edge) and a stop pulse on Channel B (positive or negative edge). Time can be measured between a start pulse and a stop pulse, both on Channel A, from either the positive or negative edges. A built-in isolated 5, 10, or 24 Vdc excitation supply can power proximity switches and other sensors, and eliminate the need for an external power supply. Jumper selections provide optimum operation for different sensor types and noise conditions. The FR dual-channel signal conditioner board accepts inputs from proximity switches with PNP or NPN output, TTL or CMOS logic, magnetic pickups, contact closures, and other signals from 12 mV to 250 Vac.
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