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The V890 has been designed to provide VHS Duplicators with an effective
high speed
conveyor solution to erasing needs.
For increased production capability, the V890 has been designed with a 7.5”
wide belt, enabling VHS cassettes to be erased sideways thus increasing
throughput by a massive 1.8 times.
With a conveyor belt of 12 ips this gives an impressive throughput of over
10,000 VHS cassettes per hour. The cassettes are placed onto the moving conveyor
belt and carried over two degaussing coils, which are oriented at 90 degrees
to one another in a “V” formation.
Thermal detection units continuously monitor each degaussing coil turning
on the cooling fans to ensure the correct operating temperature for continuous
operation 24 hours a day.
Will not erase hard drive
Degausser Features:
-
Degauss 10,000 VHS tapes per hour
-
Wide Belt
-
Single pass erasure
-
Continuous operation
Specifications:
| Erasure |
-80dB
on VHS |
| Media
|
Cassettes:
VHS, Beta, Betacam, Compact Cassettes, Scotchcart, DAT, 8mm, S-VHS (2
pass), U-Matic (2 pass), U-Matic SP (2 pass).
Cartridges: 3480 & 3490E Cartridges,
TK50, 70 Cartridges, QIC 300/600, 1000/2000. |
| Throughput |
10,000
VHS per hour 60Hz
8,300 VHS per hour 50Hz |
| Duty
Cycle |
Continuous |
| Operational
Voltage |
220/250v
ac 50Hz or 120/125v ac 60Hz |
| Current
Rating |
10
amps type |
| Belt
Width |
7.5
inches (190.5mm) |
| Belt
Speed |
50Hz
10ips, 60 Hz 12ips |
| Dimensions |
Height:
6.9” (175mm), Width: 18.1” (460mm), Depth: 48.9” (1,241mm) |
| Weight |
220
lbs (100kg) |
ATTENTION WHEN DEGAUSSING:
Please note the following suggestions when using
a Degausser:
Watches:
Remove your wristwatch when using the Degausser.
Direct exposure to the magnetic field may damage some watches.
Magnetic
Strip Cards:
Do not place your wallet or purse containing
credit or phone cards directly on or above the conveyor belt. Magnetic
strip cards are very easy to erase. However, having a wallet in
your back pants pocket while using the Degausser will not erase
the cards.
Tape storage:
Store videotapes you do not intend to
erase approximately four feet from the Degausser. This will eliminate
the opportunity for the operator to accidentally run “good” tapes
through the Degausser.
Placement
of Tapes:
When erasing tapes, place them on the left edge
of the belt (as you face the machine). In order they may travel
the full length of the conveyor belt for quality erasure.
Pacemakers:
Do not operate the Degausser if you have a pacemaker.
ABOUT DEGAUSSING MAGNETIC MEDIA
An alternating current (AC) bulk eraser (Degausser)
is used for complete erasure of data and other signals on magnetic
media. Degaussing is a process where magnetic media is exposed
to a powerful, alternating magnetic field. Degaussing removes
any previously written data, leaving the media in a magnetically
randomized (blank) state.
The Degausser must subject the media
to an alternating magnetic field of sufficient intensity to saturate
the media. Then the Degausser by slowly withdrawing or reducing
the field leaves the magnetic media in a magnetically neutral state.
To erase
recorded data, it is necessary for the strength of the degaussing
field to be greater in value than the coercivity of the magnetic
media. Simply stated, coercivity is the magnetic field strength,
rated in oersteds (Oe), required to change the magnetic orientation
of the magnetic material. Check with knowledgeable dealers or Degausser
manufacturers to identify Degausser models that meet your requirements.
Examples of typical coercivities for computer magnetic tapes and
disks are shown in table I.
Data is typically not lost until its level has
been decreased 65% to 75% (or more) below its original saturation
recording signal level, dependent upon the drive system.
A complete erasure level, for most users,
is considered to be 60 dB below the original signal level – this
of course depends on user requirements. A 60 dB signal decrease
equates to reducing the signal to one tenth of one percent of its
original value.
Magnetic media products that have factory pre-recorded
magnetic servo patterns should not be degaussed. Degaussing would
erase the factory written magnetic servo signals and leave the media
unusable. For all other magnetic media (without magnetic servo signals),
after proper degaussing, the quality of subsequent data recording
should be unchanged or even improved.
It is very important
to understand and follow the Degaussers operating instructions.
This is especially important for manual units where the operator
controls the media’s movement through the degaussing field. For
higher coercivity media, four passes are often recommended – two
passes, with a 90 degree rotation for the second pass, and then
repeat the process with the media turned upside-down. Of course,
these and other important operating considerations will vary with
the type, power and construction of the individual Degausser models.
DEGAUSS STRENGTH REQUIRED
| MAGNETIC
TAPE PRODUCTS |
TYPICAL
COERCIVITY |
COMMENTS |
| 9-Track Reel-To-Reel
Computer Tape |
300
Oe |
|
| TK50, TK70 |
350
Oe |
|
| 3480, 3490 OE |
520
Oe |
|
| SLR1, SLR2, TR-1,
DC2120, DC6150 |
550
Oe |
|
| SLR3, SLR4, SLR5,
TR-3, DC9100 |
900
Oe |
|
| SLR24, SLR32, TR-4,
ADR30, ADR50 |
900
Oe |
Do
Not Degauss,
See Note 1 |
| TR-5, SLR40, SLR50,
SLR60, SLR100 |
1650
Oe |
Do
Not Degauss,
See Note 1 |
| DLT tape III, DLT tape
IIIXT |
1540
Oe |
|
| DLT tape IV |
1850
Oe |
|
| SuperDLTtape1 |
1900
Oe |
|
| D8: 8mm 112m, 8mm
160m |
1600
Oe |
|
| DDS1: 4mm 60m, 4mm
90m |
1590
Oe |
|
| DDS2 4mm 120m |
1750
Oe |
|
| DDS3 4mm 125m |
2250
Oe |
|
| DDS4 4mm 150m |
2350
Oe |
|
| DD-2 19mm |
1550
Oe |
|
| DD-2QD (Quad Density)
19mm |
1850
Oe |
|
| DTF-1 |
1579
Oe |
|
| DTF-2 |
2300
Oe |
|
| Redwood SD-3 |
1515
Oe |
|
| Magstar MP: 3570-B,
3570-C, 3570-C/XL |
1625
Oe |
Do
Not Degauss,
See Note 1 |
| Magstar: 3590, 3590-E |
1600
Oe |
Do
Not Degauss,
See Note 1 |
| STK-9840, STK-T9940 |
1625
Oe |
Do
Not Degauss,
See Note 1 |
| LTO-Ultrium1 |
1850
Oe |
Do
Not Degauss,
See Note 1 |
| Mammoth 8mm, AIT-1
8mm, VXA-1 8mm |
1320
Oe |
|
| AIT-2 8mm |
1380
Oe |
|
| M2 Mammoth2 8mm |
1350
Oe |
|
| MAGNETIC
TAPE PRODUCTS |
TYPICAL
COERCIVITY |
COMMENTS |
| 3.5” 720KB DD Microdisk |
650
Oe |
|
| 3.5” 1.44MB HD Microdisk |
720
Oe |
|
| 5 ¼ 360 KB DD Minidisk |
300
Oe |
|
| 5 ¼ 1.2Mb HD Minidisk |
650
Oe |
|
| Zip 100 MB Disk |
1550
Oe |
Do
Not Degauss,
See Note 1 |
| Zip 250 MB Disk |
2250
Oe |
Do
Not Degauss,
See Note 1 |
| SuperDisk 120MB
|
1500
Oe |
|
* NOTE 1: DO NOT DEGAUSS
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