AK40 – pocket photometer for measuring chlorine in water (0.00–3.50 ppm)

The AK40 tester enables simple measurement of free and total chlorine in water within the 0.00–3.50 ppm range.

The AK40 chlorine tester is designed to measure residual chlorine content in water and is suitable for both field and laboratory use. It ensures operational stability, result repeatability, and metrological reliability by employing standardized colorimetric methods widely used in control analyses.

Technical specifications of the AK40 tester

Measurement range: 0.00 to 3.50 ppm, enabling continuous monitoring of residual chlorine levels in standard analytical applications. The device thus meets the procedural requirements set out in technical and operational standards.
Resolution: 0.01 ppm, ensuring precise readings even at low chlorine concentrations and allowing for tighter control in high-precision analyses.
Accuracy: ± (0.05 ppm + 3% of the reading), guaranteeing the metrological reliability of results; data remain consistent across the specified measurement range.
Method: Adaptation of the US EPA 330.5 method and Standard Method 4500-Cl G, in accordance with established laboratory practices. It utilizes liquid reagents based on the DPD method, ensuring compliance with standardized analytical procedures.
Sample volume: 10 ml, facilitating easy and repeatable sample preparation.
Light source: Light-emitting diode (LED), ensuring optical system stability.
Wavelength: 525 nm, in accordance with colorimetric method requirements.
Measurement chamber: Glass cuvette, ensuring optical and chemical integrity. Automatic shut-off: After 2 minutes, enabling energy savings.
Display: OLED, allowing for clear reading of results in various lighting conditions.
Language: Multilingual interface (Portuguese, English, Spanish, and Italian), facilitating the standardization of operating procedures.
Operating temperature: 0 to 50°C, allowing for use in diverse environmental conditions.
Operating humidity: 10 to 90% RH (non-condensing), ensuring stable operation.
Power supply: 9 V DC battery, ensuring portability during fieldwork.
Dimensions: 73 x 77 x 40 mm, facilitating practical handling of the device.
Weight: 120 g (including battery), making transport easy during inspections and analyses.