The CD1200A is the
first device to provide truly effective cleaning, gentle handling and optical
inspection for D1 & D2 (19 mm) high-density digital cassettes, using basic
time proven cleaning principles that have been the hallmark of BOW's commitment
to quality tape care.
When a cassette is inserted, the Model CD1200A senses which cassette size
has been inserted (Small, Medium or Large) and moves the reel motors into the
proper position. The cassette is then automatically lowered onto the tape deck
and the tape is extracted from the cassette's shell by flangeless roller guides.
The CD1200A will then run a complete cleaning cycle, forward and reverse.
Optical inspection takes place in the reverse direction. When the cycle is
completed the tape is retracted into the cassette shell and automatically
ejected. The units are also capable of fully manual operation.
In one cycle the tape is automatically extracted from the
cassette, wrapped around four automatically advancing tissue stations, scrapped
by a sapphire cleaning blade, optically inspected and then ejected. The
automatically advancing cleaning tissues are made of non-shedding nylon material
that are placed such that both the oxide and back side of the tape is cleaned,
both upstream and downstream of the sapphire cleaning blade. The cleaning blade,
which burnishes the tape, is a precise bi-directional double-edged sapphire
blade designed to remove debris adhered to the tape. The CD1200A also has
operator selectable cleaning cycles, allowing the CD1200A to be run unattended.
These selections are: "one pass with tissue and blade", "two
passes with tissue only", "four passes with tissue and blade",
and "four passes with blade and two with tissue only".
The CD1200A incorporates the most advanced tape path in
the digital cassette industry. It is comprised of a completely flangeless
guiding tape path and a breakthrough active guide design that provides totally
safe and gentle handling of high-density digital tape.
Provides a uniform tape stack by sensing where the tape is coming out of the
cassette shell and makes minor corrections to guide the tape through the tape
path and onto the other reel.
FRONT PANEL AND ACCESS PANEL
The front control panel provides the operator with clear
at a glance information. Displayed are; Tape in Motion, Blade Remaining, Blade
In/Out, Replace Tissue, Clean Cycles, Cassette Size and Tape Footage. A System
Monitor is provided and is always operational. If a failure should occur, a
number is displayed to tell the technician which board or assembly shows a
tissue spools and sapphire cleaning blade are easily accessible through a top
optical inspector is a reflective device that looks for physical damage such as
folds, creases, scratches, and oxide 'nicks' along the helical or transverse
scan line. By placing the sensors along the helical or transverse scan line, we
can simulate the potential loss of data under recording conditions. User
adjustable sensitivity controls allow the operator to change the length of the
'lost' scan line and the number of scan lines from 1 to 64. Defects are
registered as Center Defect and Upper/Lower Edge Defects. After the tape has
been cleaned and inspected, an UP/DOWN scan feature, which works in conjunction
with a footage counter, locates the footage at which the defects occurred. This
information can be displayed or printed out for review.
Stop on Defect (SD) option, which works in conjunction with the optical
inspector, can also be added that will allow the operator to stop the tape at a
defect location and view the physical defect in the cassette window.
a fast operating speed of 200 ips (inches per second), gentle tape handling,
precise cleaning and optical inspection, the Model CD1200A is the choice for
maintaining your D1 and D2 digital cassette tape library