ONICON FB-3500 Series - Manual (Page 18)

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FB-3500 Bi-Directional Insertion Electromagnetic Flow Meter Manual 05/14 - 0718-3
Page 18
WARNING
SYSTEM MAY BE UNDER HIGH PRESSURE. When removing the flow meter, be sure to hold
the electronics enclosure firmly by hand before slowly loosening the positioning clamping
nut. Failure to do this will allow the pressure in the pipe to suddenly and rapidly force the
meter from the pipe causing serious injury. The meter could also be damaged or break apart
causing a break in the water seal with the resultant loss of large amounts of water. The hand
effort required to hold the meter will be 0.11 times the pipe pressure.
!
Step 1:
Slowly loosen the position
clamping nut while
maintaining a firm grip on the
enclosure to counteract the
effect of pressure in the pipe.
Step 2:
Carefully withdraw the
flow meter stem from
the pipe until the sensor
head is fully inside the
hot tap adapter.
3.4 REMOVAL OF THE METER