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AK400

Max - Portable Chlorine and pH Meter

Portable Max-line meter for residual chlorine and pH by colorimetry, with GLP, USB data logging and IP65 housing for field and lab use.

AK400 Max - Portable Chlorine and pH Meter
0.00 to 5.00 ppmChlorine Range
± 0.03ppm + 3% readingChlorine Accuracy

Overview

Measuring chlorine in water is an essential process to ensure the safety and quality of several processes, especially in drinking water treatment, swimming pool treatment, and industrial processes. Chlorine is a disinfectant widely used to eliminate pathogenic microorganisms and keep water safe for human consumption and use. However, inadequate chlorine levels can be harmful, and accurate measurement of residual chlorine is crucial to ensure levels are within acceptable limits for public health and quality standards.

Developed and manufactured by Akso, the meters of the Max line are portable, ideal for those looking for practical measurements. In addition to having a modern design and display with adjustable backlight, the Max line meters have date, time and internal memory to record measurements, with the possibility of uploading data to the computer via USB connection, offering agility and safety in the analysis process.

It has a GLP (good laboratory practice) function, allowing you to check the date the product was calibrated, the standards used and the calibration expiration date (optional). It also has quick and easy user firmware updates, guaranteeing the longevity of your product. The Max line meters allow you to select a user and sample ID, and to select among 4 language options (English, Spanish, Italian and Portuguese) making them extremely versatile and easy to understand. The Maxmeters are powered via a 3.7V battery rechargeable and Always On Display mode, making them ideal for use in the field and in the laboratory.

AK400 AK400 Max - Portable Chlorine and pH Meter

Key features

  • GLP – Good Laboratory Practice
  • IP65 Water resistant casing
  • Good accuracy and immediate results
  • Easy to operate
  • Large, easy to read display
  • Auto shut-off
  • PC communication
  • User ID: 9 options
  • Sample ID: 8 options
  • Date and time setting
  • Internal memory: 2000 Log groups
  • Calibration verification
  • Backlight adjustable
  • Built-in reaction time countdown
  • Error messages
  • Multiple measurements methods
  • Works with liquid and powder reagents
  • Rechargeable battery
  • Battery status indicator
AK400 AK400 Max - Portable Chlorine and pH Meter

Specifications

Measurement Specifications
Parameter Range Resolution Accuracy
Chlorine 0.00 to 5.00 ppm 0.01 ppm ± 0.03ppm + 3% reading
pH 6.5 to 8.0 pH 0.1 pH ± 0.2 pH
General Specifications
Light source LED
Wavelength 525 nm
Measuring cell Glass cuvette
Languages Portuguese, English, Spanish, Italian
Memory 2,000 record groups
Power supply 3.7 VDC (rechargeable battery)
Communication USB (power and PC communication); AC/DC adapter 5 Vdc–2 A
Operating temperature 0 to 50 °C
Operating humidity 10 to 90 % RH (non-condensing)
Dimensions 95 × 80 × 190 mm
Weight 300 g (with battery)
Measurement method Colorimetric — Standard Method 4500-Cl G / US EPA / DIN / ISO 7393-2
Calibration points Chlorine: 6 points (0, 0.5, 1.0, 2.0, 3.0, 4.0 ppm) · pH: 4 points (6.5, 7.0, 7.5, 8.0) plus blank

What's in the kit

  • 2 × 15 mL measuring cuvettes — AK4550
  • 1 reagent kit for free chlorine, total chlorine and pH
  • 1 cleaning and drying cloth
  • 1 USB cable for power and PC communication
  • 1 AC/DC adapter (100–240 Vac / 5 Vdc) — AK1077
  • 1 carrying and storage case
  • AK4001 — Liquid reagent for Free & Total Chlorine (150 tests)
  • AK4009 — Liquid reagent for pH (100 tests)
  • AK4550 — Cuvette for MAX Photometers
  • AK1075 — Power Supply 220 VAC / 12 VDC
AK400 kit contents

Accessories

Replacement parts, calibration solutions, and maintenance supplies for the AK400.

Liquid reagent for Free & Total Chlorine (150 tests)

AK4001

Liquid reagent for Free & Total Chlorine (150 tests)

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Liquid reagent for Free & Total Chlorine (300 tests)

AK4002

Liquid reagent for Free & Total Chlorine (300 tests)

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Liquid reagent for Free Chlorine (150 tests)

AK4003

Liquid reagent for Free Chlorine (150 tests)

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Liquid reagent for Free Chlorine (300 tests)

AK4004

Liquid reagent for Free Chlorine (300 tests)

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Verification Standards Kit for Chlorine-pH Max

AK4012

Verification Standards Kit for Chlorine-pH Max

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AK4550

AK4550

Cuvette for MAX Photometers

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Instrument, probe, solutions, and carrying case

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