Dwyer Instruments SERIES MFS, SERIES MFS2 Catalog Page
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M12 X
®
E
SERIES MFS & MFS2
MAGNETIC INDUCTIVE FLOW SENSORS
No Moving Parts, Frequency and 4-20 mA Output, Maintenance-Free
FLOW
MFS
Model L1 L2 D1 D2
MFS2-1
4˝
0.86˝
MFS2-2
4˝
MFS2-3
4.02˝
MFS2-4
4.41˝
MFS2-5
4.41˝
MFS2-6
4.81˝
E
O
D
I
V
O
N
L
I
N
0.86˝
0.86˝
1.04˝
1.04˝
1.13˝
1/2-14˝ NPT
1/2-14˝ NPT
3/4-14˝ NPT
1-11.5˝ NPT
1-11.5˝ NPT
1-1/4-11.5˝ NPT
MFS2
0.31˝
0.31˝
0.55˝
0.71˝
0.71˝
0.98˝
1-1/8
1-5/32
2 x L2
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4-pin plug
connector
1
2 X D1
1˝ NPT
LED
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MFS-31 & MFS-32 MFS-11 & MFS-12
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4-pin plug
connector
2 x L2
LED
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M12 X 1
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2 X D2
[HOLE DIA.]
2 X D1
MFS2-6
[25.91]
19/32
[15.27]
1/2˝ NPT
9/16
[13.95]
3-1/32
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MFS-21 & MFS-22
1-9/64
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17/64
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L1
MFS2-1/5
2-1/4
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3/8
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[HOLE DIA.]
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2 X D2
The Series MFS & MFS2 Magnetic Inductive Flow Sensors are compact, 316 SS
body, in line owmeters with pulse and optional analog 4-20 mA output. It is available in
a variety of ow ranges from 0.25 to 52.8 GPM (1 to 200 LPM) and process connection
sizes of 1/2˝ and 1˝ NPT.
FEATURES/BENEFITS
• Long life cycle with no moving parts to wear or break
• Can be applied in applications dealing with contaminated media with no mechanical
component in the ow
• Obstruction free pipe cross-section yields low pressure drop
• Unaffected by change in temperature, density, viscosity or concentration
APPLICATIONS
• Contaminated liquid ow monitoring
• Flow of conductive liquids
• Water & wastewater treatment
• Industrial systems
• Irrigation applications
MODEL CHART
Model Range GPM (LPM)
MFS-11
0.25 to 5.3 (1 to 20)
MFS-21
0.5 to 10.5 (2 to 40)
MFS-31
2.5 to 52.8 (10 to 200)
MFS-12
0.25 to 5.3 (1 to 20)
ACCESSORIES
Minimum Output
Signal GPM (LPM)
0.13 (0.5)
0.25 (1)
1.3 (5)
0.13 (0.5)
Process
Connection Output
1/2˝ NPT
1/2˝ NPT
1˝ NPT
1/2˝ NPT
Frequency
Frequency
Frequency
Frequency & analog
Model Description
MFS-C3
MFS-C5
MFS-C10
4 pin cable socket M12x1 connect, 9.8 ft (3 m)
4 pin cable socket M12x1 connect, 16.4 ft (5 m)
4 pin cable socket M12x1 connect, 32.8 ft (10 m)
MFS-X 4 pin cable
SPECIFICATIONS
Service: Compatible, non-coating,
conductive liquids.
Range: See model chart.
Wetted Materials: Electrodes: 316 SS;
Process connections: MFS: 316 SS;
MFS2: PVDF; Measuring pipe: MFS:
PEEK-GF30; Gasket: EPDM.
Accuracy: MFS: ±2% of reading; MFS2:
±1% or reading.
Repeatability: 1%.
Temperature Limits: MFS: Process:
32 to 194°F (0 to 90°C); Ambient: 41 to
158°F (5 to 70°C); MFS2: Process: 14
to 140°F (-10 to 60°C); Ambient: 41 to
140°F (5 to 60°C).
Pressure Limits: MFS: 232 psi (16 bar);
MFS2: 145 psi (10 bar) @ 68°F (20°C);
116 psi (8 bar) @ 104°F (40°C); 87 psi (6
bar) @ 140°F (60°C).
Response Time: MFS: < 500 ms;
MFS2:< 100 ms.
MODEL CHART
Model Range GPM (LPM)
MFS2-1
0.07 to 1.3 (0.25 to 5)
MFS2-2
0.26 to 5.3 (1.0 to 20)
MFS2-3
0.66 to 13.2 (2.5 to 50)
MFS2-4
1.3 to 26.4 (5.0 to 100)
MFS2-5
2.6 to 52.8 (10 to 200)
MFS2-6
3.3 to 66.0 (12.5 to 250)
Power Requirements: 24 VDC ±10%.
Power Consumption: 0.6 W.
Output: Frequency: Square-wave, NPN
or PNP; Analog: 4-20 mA.
Loop Resistance: 250 Ω.
Current Consumption: Max 80 mA.
Minimum Conductivity of Mediu m: 50
µS/cm.
Flow Indication: LED green, ow
proportional blinking.
Enclosure Rating: NEMA 4 (IP65).
Process Connection: See model chart.
Electrical Connection: Plug connector
M12x1.
Weight: MFS-1X: 1.5 lb (0.68 kg); MFS2X: 1.7 lb (0.77 kg); MFS-3X: 1.9 lb (0.87
kg); MFS2-1, -2, -3, -4, -5: 8 oz (226.8
g); MFS2-6: 1 lb (0.45 kg).
Process
Connection Output
1/2˝ male NPT
1/2˝ male NPT
3/4˝ male NPT
1˝ male NPT
1˝ male NPT
1-1/4˝ male NPT
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Electromagnetic, In-Line
Flow Transmitters,
291DWYER INSTRUMENTS, INC.
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