Omega Products FMG803 User Manual
PLASTIC BODIED
ELECTROMAGNETIC FLOWMETER
FMG800 Series
U No Moving Parts
U Minimal Straight
Pipe Required
U Battery or DC Powered
U Built-In Rate and
Total Indicator
U Corrosion Resistant
U Pulse Output
(FMG810 Only)
U US Gallons
Factory Programmed
(Other Engineering
Units Available)
The FMG800 Series is a full-bore,
plastic-bodied electromagnetic
flowmeter designed for flow and
usage monitoring applications in
1, 2 and 3 inch pipe. The
polypropylene flow tube offers
corrosion resistance to a wide
range of chemicals and fertilizers.
It is light weight and easy to
install or remove from the pipe
for inspection*.
With no moving parts, the magmeter
permits unobstructed flow, minimizing
flow disturbances and straight pipe
requirements. The FMG800 Series
can be used in piping configurations
where there is little space between
the meter and an elbow or valve.
The FMG800 Series is resistant to
wear from sand and debris found in
ground or surface water. Since there
are no bearings or propeller to wear
out, maintenance and repair costs
are kept to a minimum and it
tolerates high flows without damage.
A hinged polyethylene cover is
included that protects from dust and
UV rays, while permitting easy
access to the flow rate and total
display. Flow rate and total can be
displayed in a variety of units,
factory programmed.
The FMG800 Series is used for
tracking flow rate and total flow in
usage monitoring applications
including wells, industrial wastewater,
heap leach mining discharge, cooling
tower deduct, turf, landscape,
and other water reclamation
applications. In the event of DC
power loss, or when changing
batteries, the FMG800 will retain
internal settings and flow total.
The FMG810 Series is externally
powered via a 5-pin connector cable
which also provides pulse output for
use with a variety of Omega displays
and controls for remote reading, data
logging, pulse-to-analog conversion,
and telemetry applications.
The FMG800 Series is a batteryoperated unit for use when pulse
output is not required. The batteries
are user replaceable with an
approximate 1 to 2 year life
depending on usage.
*Includes Omega NPT fitting kit on
2 and 3" models.
SPECIFICATIONS
Pipe Size: 1, 2 or 3" full port
Fittings: 1 NPTF, 2 or 3" flange clamps
with 2 or 3 NPTF fitting kit
Pressure: 150 psi or 10.3 bar working
pressure @ 21ºC (70ºF)
Operating Temperature Range:
-12 to 54ºC (10 to 130ºF), -40 to 80ºC
(-40 to 176ºF) non-operating
FMG802
All shown smaller than actual size.
Accuracy:
±1% of reading (between 10% and
100% of maximum flow)
±3% of reading (between cutoff and
10% of maximum flow)
Flow Range Minimum:
1": 2.3 GPM (0.145 LPS)
2": 6 GPM (0.38 LPS)
3": 14 GPM (0.88 LPS)
Flow Range Maximum:
1": 110 GPM (6.94 LPS)
2": 300 GPM (18.9 LPS)
3": 670 GPM (42.3 LPS)
Materials Body: Glass-filled
polypropylene
Electrodes: 316 stainless steel
Electronics Housing: Die-cast
aluminum, powder-coated
Display Cover: Polyethylene
Display Digits: Rate-6, Total-8
Units Rate: Gallons/Minute, Cubic Feet/
Second, Acre-Feet, Acre-Inch, Gallons,
Gallons x 1000, Cubic Feet/Minute,
Liters/Second
Units Total: Cubic Feet, Liters,
Mega-liters, Cubic Metersm
Liters/Minute, Cubic Meters/Minute
H-1
FMG803
FMG801
H
51 (2) Model
25 (1) Model
109
140 (5.5)
185 (7.3)
117
(4.62)
117
(4.62)
241
(9.50)
83 (3.25)
51 (2.00)
52
153
(6.03)
273
(10.75)
112 (4.40)
76 (3.00)
185
(7.30)
76 (3) Model
76 (3) Model
51 (2) Model
185 (7.3)
117
(4.62)
273
(10.75)
112 (4.40)
76 (3.00)
185
(7.30)
67
(2.62)
76 (3) Model
(4.3)
25 (1)
140 (5.5)
116
(4.55)
223
(8.8)
137
(5.38)
117
(4.62)
83 (3.25)
51 (2.00)
140 (5.5)
241
(9.50)
117
(4.62)
112 (4.40)
76 (3.00)
185 (7.3)
273
(10.75)
153
(6.03)
41 (1.63)
52
(2.03)
Dimensions: mm (inch)
Alternate Programming Unit Suffixes
Total
Rate Acre-feet Acre-inch Gallons Gallonsx1000 Feet^3 Liters Megaliters Meters^3
Gallons/Min -GMAF -GMAI (standard) -GMKG -GMCF - - Feet^3/Sec -CFSAF -CFSAI -CFSG -CFSKG -CFSCF - - Feet^3/Min -CFMAF -CFMAI -CFMG -CFMKG -CFMCF - - Liters/Sec - - - - - -LSL -LSML -LSCM
Liters/Min - - - - - -LML -LML -LMCM
Meters^3/Min - - - - - -CMML -CMMML -CMMCM
Power:
FMG800: 6 each “AA” alkaline cells
(included), replaceable. Estimated life
is 1 to 2 years depending on usage
FMG810: 10 to 30 Vdc @ 60 mA
maximum (15 mA average)
NOTE: Using an unregulated power
supply >18 Vdc may damage the
meter due to AC line input voltage
fluctuation
Pulse Output (FMG810 Only):
Signal: Current sinking pulse,
opto-isolated, 32 Vdc maximum at
10 mA maximum
Standard Pulse Rate: 1 unit/pulse
out, pulse width of 10 ms depending
on unit selection
High Frequency (-HF): Pulse width
1.1 ms, minimum/maximum frequency,
3 to 150 hz
Pulse/Unit: 1" = 80, 2" = 30, 3" = 13
Empty Pipe Detection: Hardware/
software, conductivity-based
Conductivity: >20 micro Siemens/cm
Environmental: NEMA 4X standard
Electrical Connection (FMG810 Only):
5-pin male circular with 6 m (20') cable
To Order Visit omega.com/fmg800 for Pricing and Details
Model No. Description
FMG801 1" battery powered magmeter
FMG802* 2" battery powered magmeter
FMG803* 3" battery powered magmeter
FMG811 1" DC powered magmeter
FMG812* 2" DC powered magmeter
FMG813* 3" DC powered magmeter
FMG811-HF 1" DC powered magmeter high frequency out
FMG812-HF* 2" DC powered magmeter high frequency out
FMG813-HF* 3" DC powered magmeter high frequency out
* Includes NPT fitting kit.
For displays programmed in other engineering units use suffix chart above.
Accessories
Model No. Description
FTB700-T Remote 4 to 20 mA transmitter for wall mount
FTB700-D Remote rate and total display for wall mount
FMG-800-CABLE Replacement 6 m (20') cable
Comes complete with operator’s manual. All 2 and 3" models include NPT fitting kit. All battery
powered units include 6 “AA” alkaline batteries. All DC powered units include 6 m (20') cable
Ordering Example: FMG811, 1" DC powered magmeter.
H-2
(7.30)
67
(2.62)
185
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