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HACH COMPANY was established in 1947, in Ames, Iowa, USA. For more than 60 years, Hach has been the world market leader for Analytical Instrumentation for Complete Water Analysis, providing solutions for lab, process and field.

In 2002, GLI, a leading US manufacturer of process electro-chemistry analytical instruments, became part of the Hach Company family.

Water analysis has to be right. Our customers deserve complete, reliable solutions that they can be fully  confident in. Hach is your answer. We make water analysis simpler

Alkalinity Analyzer

APA 6000

Alkalinity Analyzer


Each analyzer includes an installation kit, one month's supply of reagents, a maintenance kit, a sample conditioning kit, an illustrated manual, and a quick reference card. Power cords must be ordered separately.

  • Auto-calibration capability
  • Low consumption
  • Constant protection, fast and accurate response time
  • Accurate alkalinity determinations to 500 mg/L as CaCO3
  • Automatic 2-Stream Analysis


Accuracy:Better than ± 5 % of reading or ± 1.0 mg/L whichever is greater
Analog Outputs:Two 4-20 mA outputs suitable for recorders or PID control. Output span programmable over any portion of the 1 to 500 mg/L range (130 Vac isolation from earth ground)
Certifications:NRTL certified to UL and CSA standards and CE approved
Cycle Time:8 minutes
Data Communications Distance:Maximum node-to-node distance is 400 m (1312'). Maximum total wire length is 500 m (1640')
Dimensions Metric (H x W X D):522 mm x 627 mm x 526 mm
Drain:Gravity, air break or vent recommended
Drain Fitting:1/4" OD NPT barbed hose fitting
Mounting:Wall, bench and panel
Power Requirements (Hz):50/60 Hz
Power Requirements (Voltage):90 - 240 V AC
Range:1 to 1000 mg/L total alkalinity as CaCO
5-1000 mg/L CaCOas phenolphthalein alkalinity
Repeatability:Better than 3 % of reading or ± 0.6 mg/L, whichever is greater
Response Time:Less than 10 minutes for 90% response to setup change at instrument sample fitting
Sample Pressure:0.03
Sample Temperature:5 to 50 °C
Weight:56.22 lbs. (25.5 kg)


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