Omega Speaker Systems FMG3000 - Manual (Page 5)

5
3. Installation: Pipe fi ttings
Omega offers a wide selection of installation fi ttings that control the position of the Magmeter electrodes in relation to the dimensions of
the pipe. You will fi nd a complete list of order numbers for installation fi ttings in the Calibration tables on pages 8-12.
Type Description
2 to 4 inch, cut 1-7/16 inch hole in pipe
Over 4 inch, cut 2-1/8 inch hole in pipe
Special order 14 in. to 36 in.
0.5 to 2 inch versions
MPVC or CPVC
2 to 4 inch, cut 1-7/16 inch hole in pipe
6 to 8 inch, cut 2-1/8 inch hole in pipe
Available in 10 and 12 inch sizes only
Cut 2-1/2 inch hole in pipe
Weld in place using solvent cement
Iron, Carbon Steel,
316 SS Threaded
tees
Carbon steel &
stainless steel
Weld-on
Weldolets
2 to 4 inch, cut 1-7/16 inch hole in pipe
Over 4 inch, cut 2-1/8 inch hole in pipe
For pipes from DN 15 to 50 mm
PP or PVDF
Type Description
Plastic
tees
Metric
Union
Fitting
PVC
Saddles
Iron
Strap-on
saddles
PVC
Glue-on
Saddles
1.5 in. to 2 in. PVDF insert
Fiberglass
tees
FPT
0.5 to 2 in. versions
Mounts on threaded pipe ends
4. Selecting a Location
• The FMG-3000 requires a full pipe and a fully developed turbulent fl ow profi le for
accurate measurement.
• If the piping system harbors air pockets or bubbles, take steps to locate the sensor
so the air pockets will not contact the electrodes.
• In vertical installations, assemble the unit so the conduit ports are facing downward.
This prevents condensation inside the conduit from being directed into the
electronics housing.
• Chemical injection systems can temporarily alter the fl uid conductivity and cause
anomalies in the magmeter measurement.
To avoid this problem, install the Magmeter UPSTREAM of the injection point.
Select a location with suffi cient distance of
straight pipe immediately upstream of the
sensor.
Locating the sensor in a trap or where the fl ow
is upward helps to protect the sensor from
exposure to air bubbles when the system is in
operation.
These confi gurations are not recommended
because it is diffi cult to keep the pipe full.
In a gravity-fl ow system, the tank must be designed
so the level does not drop below the outlet.
This causes the pipe to draw air in from the tank.
If air bubbles pass across the Magmeter electrodes,
the output will become erratic.
Flow
Flow
Flow 6.25 GPM Total 1234567.8>
ENTER
Signet Flow
Transmitter
Flow 6.25 GPM Total 1234567.8>
ENTER
Signet Flow
Transmitter
Reducer
15 x I.D. 5 x I.D. 20 x I.D. 5 x I.D.
90° Elbow
40 x I.D. 5 x I.D.
2 x 90° Elbow
3 dimensions
25 x I.D. 5 x I.D.
2 x 90° Elbow
50 x I.D. 5 x I.D.
Pump/Valve
+ GF +
+GF+
+ GF +
+GF +
+GF+
OK OK OK
Vertical flow is OK if the pipe remains full at all times.