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Turbine Flow Meter Manual 05/13 - 0721-1 / 13518
Page 17
1. Open valve completely, loosen the position
clamping nut, and insert the meter until the
bottom of the electronics case touches the eye of
the depth gage. (Pierce insulation with gage until
the tip touches the pipe.)
2. Position the electronics enclosure parallel to
the pipe in the proper direction relative to the
flow. This will position the turbine with its axis
in line with the flow and in the correct direction.
3. Tighten the position clamping nut.
Contact
ONICON for assitance when installing a meter
without a depth gage.
WARNING
Remember, the meter may be under high pressure. And while removal of the meter is basically the
reverse of the insertion procedure detailed above, care must be taken to ensure that the meter is
supported against the pipe pressure before the position clamping nut is loosened. Failure to do this
will allow the pressure to suddenly and rapidly force the meter from the pipe causing serious injury.
!
WARNING
Prior to removal of the meter, make sure that you are standing on a secure platform and have both
hands available to manipulate the flow meter.
!
CAUTION
Do not release the flow meter until you have tightened the position clamping nut enough to hold the
flow meter in the desired position. This will require less torque than you might think, so be careful
not to overtighten it and risk damaging the adapter, nut or stem.
!
Insertion depth
gage provided
with each meter
Position
Clamping Nut
FLOW
NOTE: For installations with a limited straight run of pipe (less than the recommended distances
shown on pages 10 and 11), adjustments in insertion depth may be needed to compensate for
velocity flow profile variations. Please contact the factory for information on velocity flow
profiling for determining the average velocity location in undeveloped flow locations.
3.4.1 Adjustment of the Meter Insertion Depth
!
WARNING
If adjustment of the meter depth is required, the same procedure must be followed as if the meter
were being removed. Please carefully read the section below on removal of the meter. Remember, the
meter may be under high pressure and failure to follow the procedure may result in serious injury.
3.5 REMOVAL OF THE INSERTION METER
