The magnetising and demagnetising fields are produced in
a fixture or coil using a capacitance discharge technique.
Both series are microprocessor controlled with
adjustable capacitor voltages from 50v to maximum (in 1v steps) with
feedback via a digital display. The microprocessor controls the
charging and discharging of the machine ensuring that the charging is
managed in a way to reduce the initial charge current that
non-microprocessor systems may not have. The microprocessor also
performs fault monitoring for system protection.
Each magnet charger demagnetiser is fitted with an
internal dump resistor to discharge the main capacitors in power down
or abort mode, ensuring a safe environment for both operator and
All MCD units have the ability to interface with
external PLC controllers via a digital interface as well as an RS232
port for integration with other products such as Integrating Fluxmeters
The MCD series (as defined by the energy output, in
joules, to the demagnetising fixture i.e. MCD4kJ), which is based on
electrolytic capacitor technology, is suitable for low and medium
production rate. The typical range of energy outputs for the
series span from 750J to 20kJ, at capacitor voltages of up to 800 volts.
The MCDa series, which uses non-electrolytic capacitors,
is capable of high production rates. The typical range of energy
outputs for the above series span from 100J to 20kJ, at capacitor
voltages of up to 3,000 volts.