LOW FLOW MAGMETER
FMG80 Series
U No Moving Parts
U Requires No
Straight Pipe
U Pulse and/or
4 to 20 mA Output
U Chemical and
Corrosion Resistant
U Insensitive to Fluid
Density and Fluid
Viscosity Changes
U NEMA 4X (IP66)
The FMG80 Series magmeter is
designed for low-flow chemical
injection or difficult-to-meter
applications with pulsating metering
pumps in ³⁄₄ to ¹⁄₄" pipe/tube. The
housing is made of sturdy splashproof HDPE plastic.
With no moving parts, the FMG80
Series can handle fluids containing
particulate matter without clogging
or jamming, keeping maintenance
at a minimum. With no metallic
parts (100% PVDF body and PVDF
carbon fiber-filled electrodes), the
meter is corrosion-resistant and
compatible with a wide range of
chemicals. Accuracy is maintained
with conductive fluids (>20 micro
Siemens) of varying viscosities
and densities.
The FMG80 Series meter is
compact enough to fit most pump/
injection systems. With zero straight
pipe required after an elbow, it can
be easily mounted in tight spaces.
The mounting bracket adds stability.
The FMG80 Series meter has
opto-coupled current sinking or
current sourcing pulse as well as
a 4 to 20 mA output that can be
connected to many Omega
meters, controllers and data
loggers; outputs and power are
provided through a 6 m (19.7') cable
with 8-pin female circular connector.
®
panel
FMG82
SPECIFICATIONS
Pipe Sizes: 1⁄4, 3⁄8, ½, and ¾"
Fittings: Fittings with two NPT
threaded adaptors (included)
Materials Body: PVDF
Electrodes: PVDF carbon fiber-filled
Ground: PVDF carbon fiber-filled
Housing: HDPE with glass fiber
Fittings: PVDF
Adaptors (NPT): PVDF
O-Rings: EPDM or FKM (-FKM)
Temperature:
Ambient: -18 to 54ºC (0 to 130ºF)
Fluid: 0 to 93ºC (32 to 200ºF)
Pressure: 150 psi
Flow Range:
FMG81, FMG82: 3 GPM max
(0.03 GPM cut off)
FMG83, FMG84: 20 GPM max
(0.2 GPM cut off)
H-1
H
Accuracy:
FMG81, FMG82: ±1%, ±0.002 GPM
of reading across rated range
FMG83, FMG84: ±1%, ±0.005 GPM
of reading across rated range
Output Signal: Optocoupled current
sinking or current sourcing pulse output;
30 Vdc, 5 mA max, 4 to 20 mA current
loop; 7 Vdc plus load voltage drop min;
50 Vdc max
FMG81, FMG82: 1000 pulses/liter
(3785 pulses/gallon)
FMG83, FMG84: 500 pulses/liter
(1892 pulses/gallon)
Power: 10 to 15 Vdc, 150 mA (linear
power supply recommended)
Fluid Conductivity: >20 microSiemens
Environmental: NEMA 4X (IP66)
Cable Length: 6 m (19.7'), cable with
8-pin female circular connector
106.7
(4.20)
53.54
(2.10)
Dimensions: mm (in)
50.8
(2.00)
71.12
(2.80)
106.7
(4.20)
89
(3.50)
53.54
(2.10)
(NPT Fittings not shown)
Mounting
bracket
NPT Threaded Adaptors
182.9
(7.20)
NPT Threaded Adaptors
(NPT Fittings not shown)
Mounting
bracket
182.9
(7.20)
71.12
(2.80)
50.8
(2.00)
89
(3.50)
FMG82
Pressure Drop Curve
4.5
FMG81
FMG82
4.0
3.5
3.0
2.5
2.0
1.5
Pressure Drop (psi)
1.0
0.5
0.0
0
510
Flow Rate (gpm)
FMG83
FMG84
15
20
To Order Visit omega.com/fmg80 for Pricing and Details
Model No. Description
FMG81 Magmeter ¹⁄₄ NPT, EPDM 3 GPM
FMG82 Magmeter ³⁄₈ NPT, EPDM 3 GPM
FMG83 Magmeter ¹⁄₂ NPT, EPDM 20 GPM
FMG84 Magmeter ³⁄₄ NPT, EPDM 20 GPM
FMG81-FKM Magmeter ¹⁄₄ NPT, FKM 3 GPM
FMG82-FKM Magmeter ³⁄₈ NPT, FKM 3 GPM
FMG83-FKM Magmeter ¹⁄₂ NPT, FKM 20 GPM
FMG84-FKM Magmeter ³⁄₄ NPT, FKM 20 GPM
Accessories
Model No. Description
FMG80-CABLE Replacement 6 m (19.7') cable with 8-pin female circular connector
FMG81-FITTING Replacement fitting for FMG81 (2 required)
FMG82-FITTING Replacement fitting for FMG82 (2 required)
FMG83-FITTING Replacement fitting for FMG83 (2 required)
FMG84-FITTING Replacement fitting for FMG84 (2 required)
FMG80A-ORING Spare EPDM o-ring for FMG81/82 (2 required)
FMG80A-ORING-FKM
FMG80B-ORING Spare EPDM o-ring for FMG83/84 (2 required)
FMG80B-ORING-FKM
Spare FKM o-ring for FMG81/82 (2 required)
Spare FKM o-ring for FMG83/84 (2 required)
DPF701 Panel mounted flow rate or total display
U12Y100 12 Vdc power supply
Comes complete with operator’s manual and 6 m (19.7') cable with 8-pin female circular connector.
Ordering Examples: FMG81 magmeter
visit omega.com/dpf701
FMG84 magmeter
3
NPT, 20 GPM and DPF65
⁄
4
1
NPT, 3 GPM and DPF701
⁄
4
1
DIN batch controller. For technical information on DPF65, visit omega.com/dpf60
⁄
8
1
DIN digital panel meter. For technical information on DPF701,
⁄
8
H-2