Lovibond® PFX195 Automatic Colorimeters
A flexible series of spectrophotometric colorimeters
A flexible series of spectrophotometric colorimeters
The Lovibond® PFX195 colorimeter is available as a
series of nine industry-focused instruments, each including as
standard the principal colour scales used in that sector.
Results are also displayed in terms of
spectral data and CIE values.
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Version
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Application
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Standard Colour Scales
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Liquid chemicals &
industrial oils
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Pt-Co/Hazen/APHA, Gardner,
Iodine, CIE values, spectral data
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Petroleum oils & fuels
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Saybolt, ASTM Color,
Pt-Co/Hazen/APHA, CIE values, spectral data
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Dark oils & fats
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FAC, Gardner, CIE values,
spectral data
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Beers, malts & caramels
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EBC (CIE & 430 nm), ASBC
(CIE & 430 nm), Series 52 (Brown), CIE values,
spectral data
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Pharmaceutical solutions
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European Pharmacopoeia
(includes automatic selection of colour series), US
Pharmacopoeia, Pt-Co/Hazen/APHA, CIE values,
spectral data
|
|
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Industrial oils &
surfactants
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Klett Colour (blue filter
KS-42), Pt-Co/Hazen/APHA, Hess-Ives Colour Units,
CIE values, spectral data
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|
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Sugar solutions, syrups &
honey
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ICUMSA Colour (420, 560, 710
nm), Honey Colour (Pfund Equivalents), Series 52
(Brown), CIE values, spectral data
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|
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Transparent liquids
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CIE values (standard
selection), L*C*h colour space, Hunter L a b colour
space, spectral data
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Waters & waste waters
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ADMI (spectral &
tristimulus filter methods), Pt-Co/Hazen/APHA, CIE
values, spectral data
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Colour Scale Upgrades
Colour scale upgrades provide the
flexibility to meet individual requirements for additional
colour scales. The following colour scales may be added
to any standard PFX195 version, either at the time of purchase
or remotely at a later date.
Acid Wash Colour (ASTM D848)
ASTM Colour
Chinese Pharmacopoeia
Gardner Colour
Hess-Ives Colour Units
Klett Colour (blue filter KS-42); only
available if ordered with instrument
Pt-Co/Hazen/APHA Colour
Rosin, US Naval Stores
Saybolt Colour
Yellowness Index
CIE L*C*h
Windows® Software for Data Capture on PC
Each PFX195 version is supplied with
Windows® software that allows data sets to be
automatically downloaded to a PC computer where they can be
processed or stored. It also permits remote control of
the instrument.
Common accessories
Holder for standard spectrophotometer cells
(12.5 mm width)
For customers wishing to use the PFX195
with standard, semi-micro or micro spectrophotometer cells, an
optional cell holder is available to ensure that the cell
remains parallel to the light beam and does not move. Micro or
semi-micro cells can be used provided they have black walls and
base to ensure that no stray light influences the measurement.
The cell holder is designed to maintain these cells in
the correct position so that the light beam passes unhindered
through the measuring chamber.
Adapter for 10.65 mm tubes
Allows the Lovibond® PFX195
to accept samples in 10.65 mm diameter tubes (for use with
colour scales based on a 10 mm path length eg. Gardner).
Adapter for 33 mm tubes
Allows the Lovibond® PFX195
to measure ASTM Color (ASTM D1500) of samples in 33 mm diameter
tubes.
Dark Sample Cell for CIE Values
It is possible to use the PFX195
transmittance colorimeter for measuring a saturated sample
provided it is able to transmit light when viewed in a short
path length cell. The dark sample cell has a path length
of 1mm (using a 10mm cell with a 9mm glass spacer). A
suggested procedure for measuring saturated samples is to zero
the instrument with nothing in it (giving a L*a*b* reading of
100, 0, 0) and storing this 'white point' as a reference;
production samples would then be measured to obtain a Delta E
reading from this white point. The other
possibility is to apply a standard dilution to the sample and
measure it in a longer path length cell.