Model 611-A Aqua Tester
with Magnifying Prism

For Color of Water & Very Low Concentrations

Important Features:

  • 15 times more sensitivity than conventional comparator methods.
  • Guaranteed permanent color standards.
  • Magnified side-by-side comparisons of color standards and test samples.
  • "No-Meniscus" Nessler tube system. Polished plungers eliminate annoying reflections from meniscus curvature, makes color comparisons easy.
  • Built-in daylight-corrected lamp assures accurate results.

 
The most advanced visual instrument for measuring color of water over 5 ranges
(APHA Pt-Co Color, ASTM D-1209), fluoride, and low chemical concentrations of chlorine, ammonia, nitrogen, silica, etc.

The 611-A permits tests of very low ranges not possible with ordinary comparator methods by using special 200mm (about 8 in.) long Nessler tubes to accentuate the colors under comparison. Tests 24 different low-ranges and the pH of pure water.





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