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.

Features

• 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.

Dimensions

Specifications

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