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PFXi Series Instruments
    PFXi Series Instruments
Precision colour analysis made simple!

The Lovibond Colour and AOCS-Tintometer Colour scales are popular quantitative methods of colour measurement that have gained widespread international acceptance, particularly with processors of oil and oil derivatives. In addition, certain product sectors have adopted one-dimensional scales such as Gardner and FAC colour to simplify colour control when the range of sample colours involves varying intensities of a single hue. To satisfy the diverse requirements for colour data, the Lovibond series of high-precision, spectrophotometric colorimeters offers measurement options that vary from focussed instruments for Lovibond Colour or AOCS-Tintometer Colour through to a flexible, full scale package.

PFXi995: Comprehensive Colour Data Requirements
The Lovibond PFXi995 provides objective, unbiased colour data according to a comprehensive range of established industry scales, spectral data and CIE values. It is idea for companies that process a broad selection of product types with varied colour specifications, particularly in central test facilities or in independent testing laboratories. The instrument is easily customized to display only those scales of interest to the user.
PFXi950: Core Colour Scales for Oils and Oil Derivatives
The Lovibond PFXi950 is an economical version of the PFXi995 incorporating the popular scales that meet the colour analysis requirements of many oil processors. It includes botLovibond Colour or AOCS-Tintometer Colour - scales that are accepted internationally for oil analysis - as well as Gardner Colour for industrial oil, derivatives and specific products such as sunflower oil.
PFXi880/L& PFXi880/AT: Automated Lovibond Colour or AOCS-Tintometer Colour
The Lovibond PFXi880/L and PFXi880/AT are automatic versions of visual Tintometer instruments, which are designed to meet a growing demand for consistent and objective colour data. They are limited scale colorimeters: the PFXi880/L expresses colour in terms of the Red, Yellow, Blue and Neutral Units that make up the Lovibond Colour scale: the PFXi880/AT gives colour data according to the AOCS-Tintometer Colour scale, a modified red and yellow version of the Lovibond scale. On both instruments, results can be displayed in terms of CIE values and spectral data.
Colour Scale
Range
Path Length
PFXi995
PFXi950
PFXi880
/L
PFXi880
/AT
Lovibond RYBN 0-70 Red,Yellow;0-40 Blue;0-3.9 Neutral 1/16"-6"
Y*
Y
Y
  
AOCS-Tintometer Colour 0-20 Red, 0-70 Yellow 1", 5 1/4"
Y*
Y
  
Y
Gardner Colour 1-18 units 10 mm
Y
Y
    
Pt-Co/Hazen/APHA Colour  0-500 mg Pt/1 100 mm
Y
      
FAC Colour 1-45 (odd numbers) 10 mm
Y
      
Chlorophyll A & B 0-100 ppm 10 mm
Y
O
O
O
beta Carotene 0-1000 ppm 10 mm
Y
O
O
O
Iodine Colour 1-500 units 10 mm
Y
      
Hess-Ives Colour Units   10,25,50 mm
Y
      
Klett Colour   40 mm
Y
      
Kreiss Value Depends on concentration and path length 1/16" - 6"
Y
      
CIE Values: Defined by spectrum locus Depends on saturation of sample colour
 -XYZ tristimulus values
Y
Y
Y
Y
 -xyY chromaticity co-ordinates
Y
Y
Y
Y
 -CIE L*a*b* colour space
Y
Y
Y
Y
 -L*C*h colour space
Y
      
 -Hunter L a b colour space
Y
      
 -DeltaE colour difference
Y
Y
Y
Y
Spectral Data:
 -transmittance 0-100% (full spectrum and specified wavelength)  
Y
Y
Y
Y
 -optical density 0-2.5  
Y
      
Optional Items for Individual Applications
Integrated heater unit A factory fitted option for maintaining samples such as fats and waxes in a liquid state
O
O
O
O
Windows software for data capture on PC Allows data set to be automatically downloaded to a PC computer where they can be processed or stored. It also permits remote control of the instrument.
Y
O
O
O
Conformance filter sets Sets of graded glass filters, representing a spread of colours from each of the main scales are available for quick and simple calibration checks
O
O
O
O
Y=included as standard O=available as optional upgrade
* The Lovibond PFXi995 also includes: the AF960 Lovibond scale, an abridged red and yellow scale which was introduced on the AF960, an early colorimeter; the AF960 AOCS scale, which is similar to AOCS-Tintometer Colour but modified for use on the AF960.

Specifications
Measuring principle: 16 interference filters Light Source: 5 volt, 10 Watt tungsten halogen lamp (lens ended)
Spectral response: 420-710 nm Illuminant: CIE Illuminant C (A, C, D65 on PFXi995)
Bandwidth: 20 nm Observer: 2°  (2° , 10°  on PFXi995)
Measurement time: less than 25 seconds Path Length: 0.004"-6" (0.1-153mm)
Calibration: Single key press; fully automated Interface: Parallel printer port, RS232 port
Repeatability: -chromaticity (x y)  +/-0.0002 Input Voltage: Universal, via external power supply
-transmittance  +/-0.25% Approvals: CE
-Lovibond values  +/-0.1 Display: 2 x 40 character, back-lit LCD
Insructions: 7 languages - English, French, German, Spanish, Italian, Portuguese, Dutch Keypad: 21 key membrane keypad; washable polyester with audible feedback
Heater Unit: Factory fitted option, 95°  C max Instrument Housing: Fabricated sheet steel with tough, textured paint finish
Weight: 7.75 kg Dimensions: Width 515mm, depth 195 mm, height 170 mm

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