AW632 – ABB Ammonia analyzer Aztec

AW632Accurate low level ammonia analysis
The Aztec 600 colorimetric ammonia analyzer provides reliable and highly accurate measurement of low level ammonia concentrations for a wide variety of applications from drinking water influent to wastewater effluent.


It’s never been easier to accurately monitor low levels of ammonia online.
Featuring ABB’s intuitive menu-driven software and the unique self-cleaning Aztec fluid handling system, users benefit from an analyser that is both simple-to-operate and maintain.

Users benefit from:
– Analysis of up to 3 sample streams
– Automatic 2-point calibration
– Automatic background color compensation
– Automatic sample dilution to maximize range
– Self-cleaning measurement system
– Intuitive software with full colour graphical display
– Data logging and graphical process trending
– Full audit trail capability
– Secure data archiving to SD Card


  • Measurement range
    0 to 3 ppm NH3 (0 to 3 mg/L)
  • Chemical Method
    Indophemol blue
  • Background color correction
    Compensated at the measurement wavelength
  • Measurement frequency
    1 to 4 measurements per hour (User-selectable)
  • Accuracy / maximum measured error
    ±5 % of reading or ±0.005 ppm (whichever is the greater)
  • Repeatability
    ±5 % of reading or ±0.005 ppm (whichever is the greater)
  • Resolution
    0.001 ppm or 1 ppb
  • Measurement units
    mg/l, ppm, ppb, μg/l
  • Calibration
    2-point, automatic calibration

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