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Water analysis, The Lovibond® Comparator System 2000

Water analysis, The Lovibond® Comparator System 2000
 Cat. NoDescrtiptionPack SizePriceQuantity
CO/85102 LOVIBOND COMPARATOR 2000+ each £59.56
WT/85002 NESSLERISER 2150 WITH DAYLIGHT 2000 FOR 113MM CYLINDERS each £571.82
WT/85004 NESSLERISER 2250 WITH DAYLIGHT 2000 FOR 250MM CYLINDERS each £611.42

For more than 60 years the Lovibond® Comparator System has been widely used for chemical analysis of water.  Today it remains a popular choice for water analysis in all environments, offering a simple and flexible approach, which gives reliable results in both laboratory and field testing:
  • Compact, easily portable and robust for field testing
  • Reagents mostly available in convenient tablet form
  • Includes stable-coloured glass filters which can be certified under a ISO 9001:2000 QA procedure What You Need
  • Comparator instrument (Comparator 2000+ or appropriate Nessleriser)
  • Lovibond® test disc
  • Reagents, specific to the test
  • Sample container of the required path length
  • Lighting unit (optional) to ensure constant viewing conditions Using the System
  • Follow the test method for sample preparation, adding the specified reagent to a known volume of sample in the appropriate sample container.
  • Insert the Lovibond® test disc into the appropriate comparator instrument.
  • Place the sample container in the right hand comparator compartment, and, if specified in the test method, a cell containing a blank of water or untreated sample in the left hand side.
  • Using standardised lighting, rotate the disc until the closest colour match with the sample is obtained.
  • The value will be shown in the window in the comparator instrument. Comparator Instruments The Lovibond®  Comparator 2000+ is high quality instrument for visually matching the intensity of sample colour with Lovibond®  glass filters; it includes an adjustable cell compartment for samples in cells of up to 40 mm path length.  Lovibond®  Nessleriser systems are longer path length instruments for matching a column of sample in a Nessler cylinder with Lovibond®  glass filters; they are designed for measuring concentrations that are below the sensitivity of the Comparator 2000+.
    Lovibond®  comparator instruments include an integrated prism, which causes the sample and comparison fields to overlap, allowing enhanced colour discrimination and matching.  The prism is ultrasonically sealed to prevent contamination of the optics.  Both the Comparator 2000+ and the Nessleriser series include the facility to compensate for water samples that are turbid or tinted.
    Each comparator instrument is available as a natural daylight option or in combination with the Daylight 2000 Lighting Unit (see below).




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