Maintaining the capabilities of 4-wire electromagnetic flowmeter, the MGM4042K is 2-wire compact electromagnetic flowmeter powered by 24V DC within range of 14 to 36V DC.
Saving the wiring cost, the 2-wire system makes it easier to replace existing conventional differential pressure flowmeter such as orifice type.
Very small flow rate can be covered:  Min. 0 - 0.5 L/h [Water] can be measured.  
 Alarm output option available:    In addition to local indication type, alarm output version is also available.
 Compact design:   Easy installation onto instrument panel.
 Safety for high temperature and pressure: All metallic material construction covers tough applications!


Fluids Liquids with conductivity 5μS/cm or more. However, water must have 20μS /cm or more in conductivity.
Measuring range
(fluid velocity)
Max.: 0 to 763m3/h (0 to 12m/s)
Min.: 0 to 0.0849m3/h (0 to 0.3m/s)
Nominal size 10, 15, 25, 50, 80, 100, 150mm
Fluid pressure Max. 4.0Mpa (10 to 80mm in size)
Max. 1.6Mpa (100 and 150mm in size)
Fluid temperature -20 to +140°C(The temperature of the explosion proof type depends on the atmosphere temperature and temperature class)
Wet part
Lining: PFA for 25 to 150mm, PTFE for 10 and 15mm in size
Electrodes: Hastelloy®C for 50 to 150mm, Hastelloy®B for 10,15 and 25mm in size
Earth ring: Equivalent to SUS316 as standard, Hastelloy®B, Hastelloy®C, Titanium, Tantalum or Platinum/iridium as an option
10A to 150A JIS 10K and 20K Flanges equivalent, ASME 150 lbs equivalent, DIN PN16 and 40 equivalent
LCD 2 lines with illumination
Line 1: 8 digit numerical figures
Line 2: unit indication
(Flow rate or total flow volume indication selectable. Or alternative indication of these two items automatically with interval. Bar graph indication is also available)
Current output: 4 to 20mA DC, 0 to 20mA DC
Pulse output: Open collector output
Status output: Open collector output
Low cut off, Free measuring unit, Automatic zero adjustment, Bi-directional flow measurement, Double range measurement, Self-diagnosis, Memory save function, Testing, Magnetic pin data setting, Options
Pulse output: ±0.5% of reading for 1m/s or more flow velocity
Flow velocity error±0.005m/s for less than ±1m/s flow velocity
Current output: Additional error of ±0.05% of full scale to be added onto above pulse output accuracy.
Power supply 2-wire system 14 to 36V DC
Protection /
Explosion proof
IP67(IEC 60529)
ATEX Explosion proof