
LOW-FLOW MAGNETIC FLOWMETER
Control housing.
FMG201 Series
Starts at
$
1078
 Variety of Outputs  
 Continuous Flow Signal  
 Relay Alarm Outputs 
 Rate and Total
The FMG201 Series comprises 
small, plastic-bodied 
electromagnetic flowmeters capable 
of measuring the pulsating flows 
from air and solenoid-driven 
metering pumps. They are 
designed for use with electrically 
conductive chemicals and fluids of 
varying viscosities. In addition to 
measuring and displaying flow rate 
and total flow, they have a variety 
of outputs. For continuous 
transmission of a flow signal, 
available outputs are 4 to 20 mA, 
0 to 5V, and a frequency signal 
proportional to flow. Relay alarm 
outputs are for low and high flows 
with user-set flow levels. 
Important Note: For proper 
operation, one or both of the ground 
lugs must be well connected with 
10-24 UNC screws to a good 
earth ground. 
SPECIFICATIONS
Accuracy:
±1% of Reading, +0.005 GPM 
(0.02 LPM): Above 10% FS 
±3% of Reading, +0.005 GPM 
(0.02 LPM): Below 10% FS
Maximum Fluid Temperature:
85°C (185°F)
Maximum Pressure:
10.3 bar (150 psi) @ 24°C (75°F)
Wetted Materials:
Connection: 
Mounting Holes: 4 holes, 0.218" Dia.
DIMENSIONS 
Housing: 125 H x 125 W x 74 mm D
(4.93 x 4.93 x 2.92") 
Flow Sensor: 112 H x 95 W x 89 mm D 
(4.4 x 3.75 x 3.5")
Each Unit Includes
Sensing Element and
Control Housing
Body: PVDF 
Electrodes: Platinum-coated 
titanium
Internal Seals: FKM 
Housings (Primary Element):
Fusion-coated aluminum
FMG200-DC: PVDF 
Control/Display: Polycarbonate
3
⁄8 or 1⁄2 MNPT
Sensing 
element.
FMG203-NPT, $1518, 
shown smaller 
than actual size.
Cables (Controller to Sensor): 
1.8 m (6') standard, 6 m (20') optional
Power: 115 Vac, 60 Hz  
Display: Backlit LCD 
(2 lines of 16 characters)
Fuse (Included): 0.25 A, 5 x 20 mm 
Minimum Conductivity: 20 µS 
Outputs: 4 to 20 mA (24 Vdc required),
0 to 5V (both isolated); frequency to 
9999 pulses per gallon; isolated 
10 mH, 30 Vdc; high alarm,low alarm 
relay (6.25% hysteresis), isolated 
(100 mA, 110 Vac/Vdc)
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Through
Model No. Price MNPT Hole LPM GPM LPM GPM LPM GPM Display 
FMG201-NPT $1518 
FMG210-NPT 1078 
FMG202-NPT 1518 
FMG220-NPT 1078 
FMG203-NPT 1518 
FMG230-NPT 1078
Comes complete with operator’s manual, bracket and power cord. 
For barb fittings, replace “-NPT” with “-BRB”, no additional charge. 
For units with 6 m (20') sensor cable, add “-20FT” to the model number and $75 to price.
Ordering Examples: FMG201-NPT, 0.01 to 1 GPM magmeter with display, $1518. 
FMG220-NPT, 0.02 to 3 GPM magmeter without display, $1078.
3
⁄
8
3
⁄
8
3
⁄
8
3
⁄
8
1
⁄
2
1
⁄
2
Nominal Full Scale Min for 1% Accuracy Low-Flow Cutoff
1
" 3.8 1 0.38 0.1 0.04 0.01 Yes
⁄
4
1
" 3.8 1 0.38 0.1 0.04 0.01 No
⁄
4
3
" 11 3 1.14 0.3 0.08 0.02 Yes
⁄
8
3
" 11 3 1.14 0.3 0.08 0.02 No
⁄
8
1
" 38 10 3.8 1 0.15 0.04 Yes
⁄
2
1
" 38 10 3.8 1 0.15 0.04 No
⁄
2
Recommended Reference Book: 
Flowmeter Guide,
Visit omega.com/bobi for Additional Books
FW-202, $250.
H-19
Magnetic

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