FAQ

What is the Vertical Distance of Flow?
Vertical Distance of Flow between center of transit and point on rod inter￾sected by middle horizontal crosshair. Vertical Distance of Flow is usually measured using the Meter for Length. Note that the value of Vertical Distance of Flow is always positive.
Can the Vertical Distance of Flow be negative?
No, the Vertical Distance of Flow, measured in Length cannot be negative.
What unit is used to measure Vertical Distance of Flow?
Vertical Distance of Flow is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Vertical Distance of Flow can be measured.
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