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Integral
Control System
All
control software is
within the instrument, tamper
proof, providing easy menu
driven
operation with massive safe
storage for scans, plots,
curves etc. PC control and
data transfer to a PC are
provided.
Equal Sample
and Reference Facilities
Identical
and generous sample and
reference sampling
facilities widens the
scope of measurement,
for example,
to enable multi-cell
sampling in both beams and
accommodate
bulky accessories in
the reference
beam.
Method
Operation and Storage
Up to 30 sets
of instrument parameters,
including concentration
curves may be stored, security
code
protected. When recalled,
instrument parameters are
automatically
set, avoiding errors.
Multi-Language
Operation
The
operator may select from
the six operating
languages provided.
Full Alpha Numeric entry
is
provided so that
results may be fully documented
for GLP.
Formula
Entry and Computation
Mathematical
formulae may be entered enabling
complex calculations
involving many wavelengths
and cells to be
carried out automatically.
Software
Enhancement by E-SEF
E-SEF
- Encoded Software Enhancement
Facility
- allows software
modules to be enabled
using encoded
numbers provided
by telephone, fax or E-mail.
Software requirements
may be tailored,
at
any time,
as required.
Data
Storage and Protection
Data,
including 100 spectra,
concentration
curves, kinetics
and time course plots may
be stored in
safe memory,
security code protected against
tamper
or deletion
using a four
digit password.
Reprocessing
Scans, time
course plots,
reaction
curves and
gel scans
may all be reprocessed
to any required
format on
the display
screen and then plotted.
Performance
Validation
Software
and certified
standards
enable
wavelength
accuracy, absorbance accuracy,
bandwidth,
stray light
etc. to
be validated. A timed and
dated
report
includes
the serial
number of the
instrument.
Variable
or Fixed Bandwidth
Optical
bandwidth
selectable
down
to
0.5nm is
provided
by
the CE7500 and allows the
fine structure
of
narrow bands
to
be resolved which remain
unresolved
at
just under
2nm
bandwidth in instruments
such as
the CE7400.
Double
Beam Optical System
The
fully symmetrical
optical
system measures
sample
and
reference simultaneously
for ultimate
accuracy,
precision
and
baseline
flatness.
Long
term
stability
is
up
to
ten
times
better
than
single
beam
systems.
Automatic
Cell Changers
Automatic
changers are
available for
4, 6
or 8 cells, providing
rapid sample
changing or
the facility
for full programming.
Sipette
Sampling
Samples
down to
300 microlitres
may be
measured in
a 10mm cell. Sampling
is under
control of
the instrument’s
microprocessor system.
Samples
may be
saved or
pumped to
waste.
Ultra-Micro
Sampling
Samples
of 50µl
and less may be
accurately measured assisted
by the
very small
beam size
of only
7 x
1mm. All normal
cells up to 100mm
pathlength are
accommodated.
Sample
Temperature Control
Water
and thermoelectric
temperature control
are available for single
cells
and automatic
cell changers.
Temperature is set
from the
control panel
and displayed
on the
screen in
the latter
case.
Dissolution
Testing
Versions
of the
instruments fitted
with a
special cell compartment
with piping
port, are
available for
dissolution testing
using Cecil
TD software
and a
PC. Six
and eight
cell changers
are available. Batch
Sampling
Automatic
batch sampling
for up
to 100
samples is
available. The pump fits
within the
sample compartment
and volume etc
is set from the
control panel
and displayed
on screen. Batch
number entry
is provided. Specular
Refelectance
Special
accessories enable
specular reflectance measurements
to be
made. Both
fixed angle
and variable angle
reflectance accessories
are available.
The latter
is particularly
useful for
film thickness
measurements. |
