The AK44 alkalinity meter is designed to determine the total alkalinity of water using a colorimetric method, in accordance with Standard Method 2320 A. The device enables reliable analysis in both field and laboratory settings, ensuring operational stability and measurement consistency for routine water quality monitoring.

Technical specifications of the AK44 tester

• Measurement range: 0 to 500 ppm, enabling the monitoring of total alkalinity in raw water, treated water, and wastewater. The device thus covers the ranges typically required for environmental and industrial applications.
• Resolution: 1 ppm, allowing for a direct reading of sample alkalinity. This ensures objective results within standardized technical monitoring.
• Accuracy: ± 3 ppm + 5% of the reading, in accordance with the specifications of the adopted colorimetric method. The analyzer thus meets the operational requirements of the analytical method.
• Four-point calibration: 0, 50, 100, and 300 ppm, enabling calibration against standards. This ensures the consistency of subsequent measurements.
• Sample temperature: 15 to 35°C, falling within the recommended conditions for analysis.
• Measurement method: Colorimetric method 2320 A, ensuring analysis standardization.
• Light source: Light-emitting diode (LED), ensuring optical signal stability.
• Wavelength: 630 nm, suitable for the colorimetric method of alkalinity determination.
• Measurement chamber: Glass cuvette, ensuring compliance with laboratory procedures. This enables the optical system to maintain reading repeatability.
• Operating temperature: 0 to 50°C, allowing for use in various field conditions.
• Operating humidity: 10 to 90% RH (non-condensing), ensuring stable operation. The device is therefore suitable for continuous monitoring.
• Sample volume: 10 ml, in accordance with the requirements of the method used.
• Display: OLED, ensuring good visibility of measured values.
• Automatic shut-off: After 2 minutes, helping to save energy.
• Languages: Portuguese, English, Spanish, and Italian, allowing for use in various settings. Power supply: 9 V DC (one 9 V battery).
• Dimensions: 73 × 77 × 40 mm, facilitating transport and handling.
• Weight: 120 g (including battery), ensuring device portability.

Kit contents

• 2 glass cuvettes with lids, compatible with the colorimetric method
• 1 cloth for cleaning and drying cuvettes, protecting the optical system
• 1 carrying case, providing protection during transport