Non-Nuclear Dense Medium Controller (DMC)


Coal, Iron Ore, Chrome, Diamonds
A non-nuclear density meter for the measurement of slurries containing magnetic particles. Ideal for the density measurement of magnetite or ferro-silicon slurries as utilised in coal, iron ore, chrome and diamond Dense Medium Separation plants.


  • Non-nuclear density measurement device
  • Suitable for Magnetite, Milled FeSi and Atomised FeSi slurry applications
  • Density measurement independent of flow rate
  • Non-contact
  • No moving parts
  • Temperature stabilised
  • Standard analog and various fieldbus output options
  • No maintenance – no periodic cleaning required
  • In-field, one point recalibration – no process adjustment or shutdown required
  • ON-OFF and PID output control to achieve desired density
  • Full density range 1.00 – 4.50 S.G. (Medium specific)
  • Accuracy of 0.01 S.G

The Dense Medium Controller (DMC) is designed to measure the density of slurries accurately and reliably in Dense Medium Separation Plants.

The technology used is non-nuclear and has been used in the diamond industry for over a decade. Being non-nuclear eliminates the legislative, safety, environmental and personnel skill requirements associated with nucleonic densitometers.

  • Density readout on Controller screen.
  • PID controller output to external control valve.
  • Bang-bang (on-off) output with user defined hysteresis to optional solenoid valve control.



Pipe Material: High Density Polyethylene (HDPE) PN16 PE100 (SDR11)

Degree of protection: IP66, certified by the SABS to SANS 60529:2001

Power supply:

Recommended -

  • 85 to 264 VAC (47 to 63 Hz), 0.3A RMS at 230 VAC
  • 120 to 370 VDC

Bypassing the internal power supply unit:

  • 24VDC
  • 1.0A

The Controller is protected against reverse polarity.

Analog output (2 wire): 4 to 20mA, 0 to 20mA, 0 to 24mA or 0-10VDC

Serial output: RS-232

Optional Fieldbus outputs:

  • Currently available: Profibus DP, Ethernet/IP, Profinet
  • On request: CANopen, DeviceNet, Modbus-TCP

Technical Support

Should you require technical support, please send us an email or call (+27) 861 44 22 00.

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