User guide

Maximum Transmission Distance (continued)
The graph below shows the relationship between output capacitance loading and rise and fall time for
the Model 286 -3XX output signal. For instance, with 0.04uF load capacitance (1000 ft. shielded cable typ.)
the rise/fall time is 10 uS. Consequently, the absolute maximum frequency the Model 286 could transmit
would be 50 kHz (frequency = 1/time, where time include s the rise and fall times for one cycle). See
following page for maximum frequencies possible with different flow meters.
286-300- 350 © 2002, Max Machinery, Inc.
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286-313 Output Rise and Fall Time vs. Load Capacitance
0.1
1
10
100
1000
0.001 0.01 0.1 1
Output Capacitance Load (uF)
Rise and Fall Time (uS)
(rise and fall time measured between 10% and 90% of full output swing)
Maximum Transmission Distance
Discontinued