Why does the ball (float) in the flowmeter appear to move from the line that it is on, or bounce around?
The flowmeter on the Halimeter® is not intended to precisely indicate the sample flow rate. Rather, it shows the user that sample is indeed flowing through the unit. For reasons discussed in Question 10, and owing to the somewhat pulsating flow of the instrument’s diaphragm pump, it is not uncommon for the ball to bounce a bit, or move from line to line.
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