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Flow Capacitance detection type Compact Electromagnetic FlowmeterMAGMAX® EGM7300C

Capacitance detection type Compact Electromagnetic Flowmeter MAGMAX<sup>®</sup> EGM7300C


*Specifications are subject to change without prior notice.

MAGMAX EGM7300C adopts flat capacitance detection type electrodes which are located outside of measuring tube made of ceramics instead of the conventional liquid contacting metallic electrodes for detection of flow velocity.
Thanks to the capacitance detection and non-wetted electrode design, EGM7300C has achieved the stable measurement of very low conductivity liquids, highly concentrated slurries and adhesive liquids.
With the self-diagnosis function EGM7300C has intensified its reliability by monitoring status of primary head.
* MAGMAX® is registered trademark of the TOKYO KEISO CO.,LTD.


  • · Low conductivity liquid measurement down to 0.05μ S/cm
  • · High anti-corrosive capability, high durability against erosion....
  • · Stable measurement even for highly concentrated slurry liquids
  • · Stable measurement of high adhesive liquids
  • · High anti-vibration capability
  • · High accuracy of ± 0.5% of reading
  • · Blue dot matrix LCD with back light
  • · Quick and easy setting up when altering of flow rate range and pulse rate
  • · 10 kHz high-speed pulse output
  • · Compact design with high performance

Short Specifications

Measuring fluid Liquids (0.05μS/cm or more, 1μS/cm or more is required for water)
Excitation Square wave
Fluid temperature -40 to +100°C
Fluid pressure 2.5 to 80mm: 0Pa(abs) to 4MPa
100mm: 0Pa(abs) to 1.6MPa
Flow range Max.: 0 to 339 m³/h
Min.: 0 to 0.531 m³/h
Flow velocity Max.: 0 to 12m/s
Min.: 0 to 0.3m/s
Size 25, 40, 50, 80, 100 mm
Process connection Wafer type
JIS10K/20K, ANSI class 150/300, DIN PN16/40
Materials of wet parts
Measuring tube: 
Size 25mm: Zirconia ceramics (ZrO₂)
Size 40 to 100mm: Alumina ceramics (Al₂O₃)
Earth ring: 
Stainless steel/SS316 [Standard]]
Hastelloy® B, Hastelloy® C, Titanium, Tantalum [Option]
Materials of body Primary head housing: Stainless steel (SS304)
Converter housing: Aluminum alloy
Painting Siloxane coating
Indication and Pulse output: 
Size 2.5 mm to 6 mm
±0.5% of reading: For velocity ≥ 1m/s
Velocity error of ± 0.005 m/s < 1m/s
Current output: 
Additional error of ±0.01mA be added to the accuracy of indication or pulse output.
Indicator Dot matrix LCD With backlight
Changeover (2 screens), One to three lines are displayed at one screen.
Contents of indication; Flow rate, velocity, total flow, conductivity, and coil temperature
Output Current output: 4 to 20mA DC
Pulse output: Open collector pulse
Standard Functions · Customer's free measuring unit setting function
· Automatic zero adjustment function
· Automatic zero adjustment function
· Bi-directional flow measurement function
· Double range measurement function
· Excitation current frequency switching function
· Self-diagnosis function
· Memory save function for power fail
· Testing function
· Push button setting function
· HART® communication
Power Supply 100 to 230V AC
24V DC
Protection class IP66/67(IEC 60529)