iMag Seametrics Magnetic Flow Meter
iMag Seametrics Magnetic Flow Meter

iMag Seametrics Magnetic Flow Meter


The iMAG-Series is the most economical flanged electromagnetic flow meter on the market. It is used in 3” to 12”pipe in municipal or industrial water, waste water, pump stations and packaged plant applications. The iMAG has no moving parts and electrodes are designed to discourage fouling. This magmeter requires no maintenance in applications where debris would impede mechanical meters. There are no parts to wear out. Minimal straight pipe requirements allow iMAG-Series meters to be used in piping configurations where there is little space between the meter and an elbow.

iMAG-Series flow meters are rated IP68 for applications where the meter may be under water up to a depth of 10 feet (3 meters) for prolonged periods of time. Rate and total indication are standard. Rate and total units and pulse output are settable via the front panel touch key pad by the user. The iMAG can be externally powered with 9-36 Vdc at 30 mA. The standard 20-foot (6 meter) cable also provides outputs for use with a variety of Seametrics and other displays and controls for remote reading, data logging and telemetry applications. 4-20mA passive current loop and high frequency outputs are optional. The iMAG 3600 remote display flowmeter can be supplied with an optional internal AC power supply.

Positioning the Meter. 

These flowmeters can be installed horizontally, vertically, and in any radial position. Using a check valve on the upstream side of the meter, and/or an air vent (vacuum relief valve) in the same, unobstructed run of pipe as the meter, is required in any installation where the meter may be exposed to suction when the system is not in normal operation. Suction can cause damage to the liner. Liner damage caused by suction, without the use of a check valve and/or air vent, may void the warranty. Straight Pipe Recommendations. As with most flow meters, the iMAG requires straight pipe before and after the meter for best accuracy. However, the ability of electromagnetic meters to average the flow across the entire pipe allows for shorter straight pipe recommendations than most mechanical meters

Full Pipe Recommendations. All magmeters require a method for determining that the pipe is empty, to prevent false reading. This meter is designed to indicate ‘EMPTY PIPE’ if one or more electrodes is exposed. For highest accuracy, install the meter so that the pipe will be full when there is flow. If air bubbles may be present in the pipe or sludge accumulation is an issue, rotate the meter by one flange hole to position the control housing at a 45˚ angle.


  • Easy set up.
  • Minimal straight pipe.
  • Mounted or remote rate & total.
  • Tamper-evident seal.
  • NSF-61 approved.
  • IP68 rated.


  • Water & Waste Water Treatment.
  • Municipal.
  • Treatment plants.
  • Pump stations.
  • Packaged plants.
  • Filtration systems.


Pipe Size 3”,4”, 6”, 8”, 10”,12”
Flanges 150 lb. ANSI pattern
Pressure 150 psi (10.3 bar) working pressur
Temperature Operating 10˚ to 130˚ F (-12˚ to 54˚ C)
Storage -40˚ to 158˚ F (-40˚ to 70˚ C)
Accuracy +/- 1% of reading +/- 0.25% of full-scale flow from low flow cutoff to maximum flow rate of 10 m/se
Low Flow Cutof 0.5% of maximum flow rat
Materials  Body (3” Only) Ductile cast iron, powder-coated w/NSF61 listed epoxy powde
      Body (4”-12” Welded steel, epoxy-coated
      Liner (3” Only Noryl®
       Liner (4”-12”) Santoprene/Polypropylen
      Electronics Housing Ductile cast iron, powder-coate
      Electrodes 316 stainless stee
      O-ring (3” Only) EPDM
Display        Type 128×64 dot-matrix LCD
      Digits 5 Digit Rate
      Units Rate Volume Units Rate Time Units Total Volume Units


Cubic Feet

Cubic Meters

Million Gallons

Mega Liters

Imperial Gallons

Million Imperial Gallons






Gallons x 1000

Million Gallons


Liters x 1000

Mega Liters

Cubic Meters

Cubic Meters x 1000

Cubic Feet

Cubic Feet x 1000

Imperial Gallons

Imperial Gallons x 1000

Million Imperial Gallons

Power DC Power 9-36 Vdc @ 250 mA max, 30 mA average
AC Power1 85-264Vac, 50/60Hz, 0.12A
Telemetry Output 3.3V asynchronous receive and transmit (UART) signals, ASCII command-response protocol
Pulse Frequency Output Signal Current sinking pulse, isolated, 36 Vdc at 10 mA max
Pulse Rates User-settable volume units/pulse. Pulse width is one-half of pulse period, 200 pulses/sec max
  Options 4-20mA Current Loop Isolated, passive, 6-36Vdc, +/- 0.1% of pulse/frequency output HART compliant2
Digital Output Isolated, open collector, 36Vdc @ 10mA max., frequency output up to 10kHz
Relay Output Solid state relay, normally open, non-polarized, 28Vac/40Vdc @ 0.5A max, 33Hz max
Serial Communications2 Isolated, asynchronous serial RS485 or RS232, Modbus RTU protocol
Cable Control Cable Six-conductor water-blocked cable, polyurethane jacket, 20ft (6m) standard length for power, pulse

frequency or optional outputs. Optional lengths up to 100’ available

Remote Display Cable (iMAG 3600) 33ft (10m) standard length may be shortened (by user in the field). Additional cable can be ordered and attached with the use of a junction box (purchased from a standard supplier) up to 100ft (30m) total
Conductivity >20 microSiemens/cm
Empty Pipe Detection Hardware/software, conductivity-based
Regulatory (EN 61326) pending, NSF-61
Environmental IP68 to 10ft (3m) depth


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