ONICON FB-3500 Series User Manual
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FB-3500 Bi-Directional Insertion Electromagnetic Flow Meter Manual 05/14 - 0718-3
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3.2.5 Confirming the Stack Height
ONICON insertion flow meter stem lengths vary according to the pipe diameter and the
height of the installation hardware stack. ONICON records the stack height dimension
provided by the customer at the time of order entry, and the information is used to size the
stem. The dimension is shown on the laminated insertion depth gage tag attached to the
meter.
Prior to installing the meter, confirm that the stack height recorded on the tag is close
to the actual stack height. Flow meter stems are intentionally over sized to allow for
variations of at least 2” in the stack height. Contact ONICON prior to installation if there is
any question regarding stack height or stem length. This way ONICON can offer you credit
for your meter if you decide to exchange the meter for one with a different stem length.
Returns may be subject to a restocking fee.