VS Security Products LTD
ZZ009174, ZZ009177
Page 6 of 15
NOTE:
The degaussing coils are powered as part of a tuned resonant circuit. This allows quite high circulating currents to be
generated within the degaussing coils, with minimal current consumption from the mains voltage supply. However, this
technique requires that the waveform of the supply voltage contains minimal harmonic distortion. A distorted waveform will
result in an increase in current consumption.
The typical current consumption figures provided in this manual are when powered from a supply with minimal distortion. Any
increase in current consumption due to a distorted waveform will have minimal effect on the degausser performance,
however, excessive current consumption should be avoided for obvious reasons. In the event of unexplained high currents,
please consult your supplier
.
SECTION 4: OPERATION
WARNING!
strong magnetic fields are generated. remove watches before use. Ensure that the fan
operates correctly during use. (After initial warm up period). operating periods in excess of
specified duration will result in exterior surfaces becoming very hot.
4.1 Turning on the V91 MAX
The V91 MAX degausser has been designed for simplicity of operation in that it consists basically of a flat bed over which the
magnetic media is passed. Control is via a single on/off switch and indicator.
The illuminating on/off power switch is of the latching push button type which energises the degaussing coil. On units with the
key switch option fitted, the power switch will illuminate as normal when switched on, but will also require the key switch to be
turned clockwise for correct operation.
NOTE:
Where a security key switch is fitted, the degaussing coil must only be energised and de
-
energised by using the
power switch, i.e. use the RED BUTTON to switch power ON/OFF,
NOT
the key switch.
4.2 Erasure of Hard Drives
Because of the different types and manufactures specifications of PC hard disk units, VS Security Products only recommends
the erasure of hard disk units as a security precaution for the following:
a.
Erasure of data from a faulty disk pack before being sent for service/repair.
b.
Erasure of data from disk packs before disposal of computer equipment.
NOTE:
VS Security Products cannot guarantee that a drive will be operational after degaussing.
Method
The hard disk pack can be erased as a whole unit and there is no need to remove the disks.
1.
Place the hard disk drive on V91 MAX
’
s surface, slightly off
-
centre as shown in Fig. 1 (Note –
Relative position of drive
PCB) and hold down. The hard disk
’
s PCB board should be facing upwards for the first two operations then facing
down for the 3
rd
& 4
th
operations.
2.
Switch the degausser ON for 3
-
5 seconds and then switch OFF.
NOTE:
The magnetic field might cause the hard disk to vibrate. This is quite normal.
3.
Rotate the hard disk through 90 degrees (Fig. 2). Switch ON the degausser for 3
-
5 seconds and then switch OFF.
4.
Flip the hard disk over (PCB facing down) (Fig. 3). Switch ON the degausser for 3
-
5 seconds and then switch OFF.
5.
Rotate the hard disk through 90 degrees (Fig. 4). Switch ON the degausser for 3
-
5 seconds and then switch OFF.
The hard disk is now erased.
