Seametrics EX90 Insertion Electromagnetic Flow Meter

Seametrics EX90 Insertion Electromagnetic Flow Meter operate in a wide range of temperatures, pressure, and corrosive or dirty environments.

Seametrics EX90 Insertion Electromagnetic Flow Meter is designed for use with conductive fluids in 4”–12” pipe. The EX90’s stainless steel body allows the meter to operate in a wide range of temperatures, pressure, and corrosive or dirty environments.

The EX90 is highly suitable for difficult applications. With no moving parts, these meters can be used in “dirty water” applications where debris would foul a mechanical meter. If the EX90 meter is used with a programmable controller, the output signal can be fed direct, with no other conditioning required.

Rate and total units can be set via the front panel touch key pad by the user. Bidirectional flow is standard with totals available in forward, reverse, net, batch forward and batch reverse.

The EX90 is battery powered and an output cable is available for transmitting the pulse signal to remote devices. The EX90 includes a Seametrics saddle which has been designed to accommodate a wide range of pipe sizes and types while ensuring correct placement in the pipe. In addition, an optional internal data logger allows local storage of flow history


  • No moving parts
  • Economical
  • Durable
  • Easy to install
  • Easy to maintain
  • Pulse output standard
  • 4 year battery life
  • NSF/ANSI Standard 61
  • Data logging (Optional)
  • Telemetry ready for wireless meter reading. Solutions available now by our sister company


  • Municipal water
  • Water/Wastewater treatment
  • Reuse/Reclaim water
  • Industrial processes
  • Cooling towers
  • Pump towers
  • Dewatering


Pipe Size 4” to 12”
Materials Sensor Body 316 SS
Electrodes Hastelloy
Housing Powder-coated diecast aluminum
Electrode Cap PVDF (Kynar®)
Temperature Operating 10˚ to 140˚ F (-12˚ to 60˚ C)
Storage -40˚ to 158˚ F (-40˚ to 70˚ C)
Fluid Temp. 32˚ to 200˚ F (0˚ to 93˚ C)
Pressure 200 psi (14 bar)
Flow Rate 0.5 – 4.5 m/sec (1.64 – 14.8 ft/sec) (Low flow cutoff .15 m/sec; .49 ft/sec)
Calibration Accuracy 0.5 – 4.5 m/s (1.64-14.76 ft/sec) +/- 2% of reading
0.3 – 0.5 m/sec (0.98 – 1.64 ft/sec) +/- (2% of reading + 0.25% of full scale)
Display Type 128×64 dot-matrix LCD
Digits 5 Digit Rate 8 Digit Total

Please Note:

All meters are factory set for gallons per minute (GPM) rate and gallon total. If other units are required, they can be set in the field.

Rate Volume Units Rate Time Units Total Volume Units


Barrels (42 gallons)

Cubic Feet Cubic Meters Million Gallons1 Mega Liters1 Imperial Gallons

Million Imperial Gallons1

Second Minute Hour Day Gallons

Gallons x 10

Gallons x 100

Gallons x 1000 Million Gallons Liters

Kilo Liters Mega Liters

Barrels (42 gallons)

Cubic Meters

Cubic Meters x 1000

Cubic Feet

Cubic Feet x 1000 Million Cubic Feet Imperial Gallons Imperial Gallons x 1000 Million Imperial Gallons Acre Inch

Acre Foot Fluid Ounce

Bidirectional Forward Total, Reverse Total, Net Total, Batch Forward Total, Batch Reverse Total2
Power One lithium 7.2V ‘D’ size battery pack, replaceable.
Scaled Pulse Output Signal Current sinking pulse, isolated, 36 Vdc at 10 mA max
Pulse Rates User-scalable from 0.1 to 99,999.9 volume units/pulse. Pulse width varies with output frequency, 150 pulses/ sec max
Cable Optional Output Cable 20ft (6m) standard length polyurethane jacketed cable—for power and outputs. (Lengths up to 200’ (60 m) available.)
Conductivity >20 microSiemens/cm
Empty Pipe Detection Hardware/software, conductivity-based
Regulatory Certified to NSF/ANSI standard 61 and NSF 372 (Stainless only with EPDM O-ring. Vi ton pending).
Environmental IP67


Datasheet: Seametrics EX90 Insertion Electromagnetic Flow Meter

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