Electromagnetic Flowmeter MAGNETOFLOW™ M3000/4000

The amplifier with modular design allows flow measurements, in either the mounted or remote version in classified hazardous area (eg. zone 1 and 2). The amplifier housing, made of powdercoated aluminium, is available in protection class IP67 and with a separate connection space. Programming can be done either with closed housing thanks to a magnetic pen or with open housing via three buttons. The four-line display shows all necessary data like actual flow, totalizer and status messages.
The programmable excitation frequency even enables the amplifier to be adjusted for difficult metering applications. The newly developed process for amplifier compensation enables a high accuracy, especially in the lower flow range. The M3000/M4000 is especially suited for flow measurements in chemical and pharmaceutical industries, as well as water and waste water plants with explosion-proof zones.


  • Flanged process connections
  • Accuracy : ±0,2 % of actual flow
  • Flow range : 0,03 – 12 m/s
  • Protection class IP67
  • Ex-proof
  • DN 6 – 600 (1/4“- 56“)

Technical data

Power supply 85 – 265 VAC, 45 – 65 Hz < 20 VA, optional 24 VDC
Accuracy +/- 0,2% of actual flow, >= 0,5 m/s
+/- 1,25 mm/s of actual flow,<0,5 m/s
Repeatability <0,1% of full scale
Flow range 0,03 – 12 m/s
Conductivity min. 5 µS/cm
Flow direction bi-directional
Display LCD, 4 lines / 16 characters, backlit, actual flow, 3 totalizers, status display
Programming 3 buttons or via magnetic pen
Interface RS232 for measuring values and programming
Analog output 0/4- 20 mA <=750 ohms, flow direction is displayed upon a separate status output
Pulse output active / passive selectable, 2 open collectors and 2 solid state relays
Open collector: active 18 VDC, 25 mA, passive 24 VDC, 20 mA (max. 0,5 W)
Frequency output max. 10 kHz (open collector)
Status output min./max. alarm, preselction, flow direction, error message, free configurable
Empty pipe detection separate electrode
Low flow cutt off 0-10%
Housing Powder coated aluminium die cast
Protection class IP67
Cable insertion 3 x M 20
Ambient temperature -20 up to +60°C
Ex proof version M3000 :
FM/CSA class I, div. 2 / zone 2
ATEX II 3 G Ex nA ia IIC T3 Ta = -20°C to +50°C, IP66 (Flowmeter)
ATEX II 3 G Ex nA [ia] IIC T3 Ta = -20°C to +50°C, IP66 (converter only)M4000 :
FM/CSA class I, div. 1 / zone 1
ATEX II 2 G Ex d e ia IIC T3 Ta = -20°C to +50°C, IP66 (Flometer)
ATEX II 2 G Ex d [ia] IIC T4 Ta = -20°C to +50°C, IP66 (converter only)

Flange process connection for hazardous area Type V

Size : DN 6 to 600 (M3000) or DN 6 to 300 (M4000)
Nominal pressure : PN 10  PN 100

Linear materials

Type Diameter Fluid temperature
Neoprene DN 25 to 600 0 to 80°C
Hard rubber DN 25 to 600 0 to 80°C
PFA DN 6 to 10 -40 to +150°C
PTFE DN 15 to 200 -40 to +150°C
Halar DN 300 to 600 -40 to +150°C

Electrodes material : Hastelloy C (Standard), Tantal, Platinum / Gold plated, Platinum / Rhodium,
Flange connections DIN, ANSI, JIS, AWWA, etc
Dimension according to ISO 13359,
Empty pipe electrode as Standard,
Ground electrode in the same material than the measurement electrode
Ground ring in option
IP67 or IP68 protection in option.