• McMillan COBALT Series Electromagnetic Flow Meter for Liquid Applications

McMillan Flow Products introduces the COBALT Series: Electromagnetic flow meters for use with conductive liquids. These compact meters excel in measuring flow rates from as low as 10 mL/min up to 15 L/min across a wide range of mediums. The COBALT series flow meter has the capability to operate independently of liquid properties such as density, viscosity, and temperature. It is offered in both PPS and PVDF plastics. This offers versatility and cost savings to customers across a wider variety of applications. 

The absence of moving parts in the COBALT series sensor technology offers enhanced long-term reliability, reduced maintenance, and consistent uninterrupted operation. Packaged in a compact design, the COBALT series electromagnetic flow meter is a space-efficient and cost-effective solution that enables easy integration into equipment while minimizing installation complexity.


Key Features:  

  • FLOW RANGES: The COBALT flow meter can support ranges as low as 10 – 500 mL/min and as high as 1 – 15 L/min.
  • SIGNAL OUTPUTS: Options for frequency pulse or analog 4-20 mA are available.
  • ELECTRICAL CONNECTIONS: Units come standard with a 4-Pin Micro DC (M12) connection. Optional mating cables with various lengths are available.
  • ACCURACY / FLUID CONDUCTIVITY: The COBALT’s accuracy is ± 2% of full scale with  ± 1% full scale repeatability. Minimum of 30 μS/cm for 3L | 10L | 15L units is required.
  • Minimum of 200 μS/cm for 500M | 1000M units is required.
  • FLUID CONNECTIONS:  500M | 1000M | 3L units come with 1/4” FNPT connections. 10L | 15L units come with 3/8” FNPT connections. Options for various tube connections in several materials are available.
  • INTEGRATED MOUNTING:  All units feature an integrated mounting bracket.
  • MAX. PRESSURE: 10 bar 
  • MAX. MEDIA VISCOSITY: 20 cSt
  • MAX. Pressure Drop: 3.7 psi at full scale
  • Electrodes: Stainless steel 316, Hastelloy® C-4
  • Seal: FKM or FFKM
  • IP Rating: IP65

Typical Applications

  • Water treatment monitoring
  • Industrial process control
  • Commercial HVAC optimizing
  • Chemical injection and dosing


Ranges 500M | 1000M |3L

9860-2-T4
PFA 1/4” tube fittings with 1/4” MNPT threads
9860-2-T6
PFA 3/8” tube fittings with 1/4” MNPT threads
9863-2-T7
PFA 1/2” tube fittings with 1/4” MNPT threads
9863-2-T4
316L SS 1/4” tube fittings with 1/4” MNPT threads
9863-2-T6
316L SS 3/8” tube fittings with 1/4” MNPT threads
9864-2-T4
Acetal 1/4” tube fittings with 1/4” MNPT threads
9864-2-T6
Acetal 3/8” tube fittings with 1/4” MNPT threads
9864-2-T7
Acetal 1/2” tube fittings with 1/4” MNPT threads
9866-2-T4
PVDF 1/4” tube fittings with 1/4” MNPT threads
9866-2-T6
PVDF 3/8” tube fittings with 1/4” MNPT threads
9866-2-T7
PVDF 1/2” tube fittings with 1/4” MNPT threads


RANGES 10L | 15L 

9860-3-T6
PFA 3/8” tube fittings with 3/8” MNPT threads
9863-3-T7
PFA 1/2” tube fittings with 3/8” MNPT threads
9863-3-T4
316L SS 3/8” tube fittings with 3/8” MNPT threads
9863-3-T6
316L SS 5/8” tube fittings with 3/8” MNPT threads
9864-3-T6
Acetal 3/8” tube fittings with 3/8” MNPT threads
9864-3-T7
Acetal 1/2” tube fittings with 3/8” MNPT threads
9864-3-T8
Acetal 5/8” tube fittings with 3/8” MNPT threads
9866-3-T6
PVDF 3/8” tube fittings with 3/8” MNPT threads
9866-3-T7
PVDF 1/2” tube fittings with 3/8” MNPT threads
Thumb File information
COBALTDS-47X 2402 A Datasheet.pdf 2.24MB
McMillan SERIES
Accuracy ± 2.0% of full scale
Precision ± 1.0% of full scale
Pressure Rating Overpressure Limit: 145 psig (10 bar)
Temperature Rating (Fluid) -4 to 140 °F [ -20 to 60 °C ]
Temperature Rating (Environment) 14 to 140 °F [ -10 to 60 °C ]
Wetted Materials Sensor Housing: PPS; Sensing Diaphragm: PVDF
Compatible Liquids 20 cSt
Integrated Display 3 digit LED
Power Requirement 24 VDC ± 20%
Electrical Connections Plug M12 x 1
Typical Response Time 1 second (at flow changes > 10%)

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McMillan COBALT Series Electromagnetic Flow Meter for Liquid Applications

  • Brand: MCM Flow
  • Product Code: McMillan-4704
  • Availability: In Stock
  • $755.00


Available Options


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Tags: Flow Control, Automation, Valve, Fluid Handling, Flow Meter