Microcomputer alkalinity tester, photometric colorimeter

A simple, accurate, and cost-effective way to measure carbonate hardness, commonly abbreviated as DKH alkalinity. It is crucial for the marine environment, as alkalinity not only provides the carbonate ions needed for regenerating coral reefs with calcium carbonate bones, but also acts as a pH buffer to resist large changes in acidity

Product Introduction

Measurement range: 0.0 to 20.0 DKH

Reminder: Quickly convert the alkalinity (DKH) reading to 1 dKH=17.86 ppmCaCO3=0.358 meq/L

Adopting innovative optical system design, with good accuracy, repeatability, and measurement time required, the carefully designed CAL Check ™ The function allows for performance validation of instruments using NIST traceable standards, with multiple measurement methods available. Users can choose to use customized specialized reagents, built-in reaction timers to ensure consistency between sample measurements and user results, battery status indicator lights, and automatic shutdown settings. It is suitable for industries such as water quality, environment, education, and industry.

Product Introduction

A simple, accurate, and cost-effective way to measure carbonate hardness, commonly abbreviated as DKH alkalinity. It is crucial for the marine environment, as alkalinity not only provides the carbonate ions needed for regenerating coral reefs with calcium carbonate bones, but also acts as a pH buffer to resist large changes in acidity

High quality LED light source system

CAL Check ™ function

Carefully designed CAL Check ™ Function, allowing the use of NIST traceable standards for instrument performance validation and calibration; CAL Check ™ NIST curve calibration group is used to simulate specific absorbance values for each wavelength to verify the accuracy of subsequent readings.

Technical specifications

HI772 alkalinity (carbonate hardness) [applicable to seawater samples]

measurement range

0.0 to 20.0 DKH

resolution

0.1 DKH

精度@25 ºC/77ºF

Reading ± 5% ± 0.3 DKH

standard method

colorimetry

Other indicators

Light source mode

silicon photocell, LED @ 610 nm

Power mode

1 × 1.5AAA high-performance 7 # battery, automatically shuts down after 10 minutes of no use

Usage environment

0 to 50°C（32 to 122°F），RH max 95%， 无冷凝

Size and Weight

Host size: 86.0 mm x 61.0 mm x 37.5 mm (3.4 "x 2.4" x 1.5 "), host weight: 64 g (2.25 oz.)

Exclusive attachments

Glass colorimetric dish

HI731315 specialized glass colorimetric dish (cup+lid)

Measurement reagents

HI772-26 alkalinity reagent, prediction times: 25 times

Standard Curve Verification Group

HI772-11 Alkalinity NIST Measurement Curve Calibration Group, Standard Value @ 25 º C: 5.0 ± 0.3 DKH

Standard Configuration

HI772

Host, HI772-26 customized special alkalinity reagent, HI731315 customized special glass colorimetric dish (2 pieces), Chinese and English user manual, HI721025 customized special carrying case [Warm reminder: For convenient and fast sample addition, please purchase HI740157P special microplastic pipette for sample extraction and avoid cross contamination]

HI772C

Host, HI772-26 customized special alkalinity reagent, HI772-11 customized NIST alkalinity standard verification team, HI731315 customized special glass colorimetric dish (2 pieces), Chinese and English user manual, HI721025 customized special carrying case [Warm reminder: For the convenience and speed of adding samples, please purchase HI740157P specialized microplastic pipette for the extraction of test samples and avoid cross contamination]