SMC Networks PF3W3 Series Operation Manual page 34

○List of output modes
∗: If hysteresis or window comparator mode is selected and there is an unstable flow condition (due to fluid pulsation, for example),
unstable output operation can result.
In such situations, keep sufficient margin between the set values and confirm that the output operation stabilizes.
∗: When the accumulated pulse output is selected, the output display will turn off.
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No.PF※※-OMN0012-I