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Water Quality Tester

Chengdu Hengtong Xingye Technology Co., Ltd

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No. 1208, 12th Floor, Unit 1, Building 1, No. 47 Donghua 1st Road, Chenghua District, Chengdu City, Sichuan Province

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Portable photometer for total hardness and pH

NegotiableUpdate on 05/06

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

HI97736 is an excellent portable photometer used to measure the total hardness and pH value of water. This instrument provides an optical system that utilizes a reference detector and narrowband interference filter for extremely fast and repeatable measurements.

Product Details

CAL inspection to verify instrument performance

Step by step tutorial mode

Display results in multiple chemical forms

HI97736 measures two important water quality parameters: pH value and total hardness. Total hardness refers to the presence of magnesium and calcium. The hardness of magnesium and calcium is common in groundwater because rainwater dissolves these minerals when flowing through or filtering groundwater. Hardness will reduce the effectiveness of soap and detergent. It may also cause scaling in pipelines, including cooling and heating systems.

HI97736 provides two methods within a one meter range. The pH value was determined using the phenol red method; The total hardness is determined using the colorimetric method in the "Standard Methods for Testing Water and Wastewater" (23rd edition).

When adding appropriate reagents to the sample, it can cause a color change. In most cases, the higher the concentration in the sample, the darker the color. Then conduct chromaticity analysis on the relevant color changes based on the Bill Lambert law. This principle indicates that light is absorbed by complementary colors and the emitted radiation depends on the concentration. In order to determine pH value and total hardness, the 525nm narrowband interference filter only allows the silicon photodetector to detect green light and ignores all other visible light emitted from the LED. As the color change of the reaction sample increases, the absorption rate of light of a specific wavelength also increases, while the transmittance decreases. Then use pre programmed curves to display the results.

HI97736 has an innovative optical system that exhibits excellent performance in terms of accuracy, repeatability, and the short time required to perform measurements. This compact and waterproof instrument is very user-friendly, with a tutorial mode that guides users in a graphical and step-by-step manner during the measurement process. The use of backlit dot matrix LCD allows for the use of virtual buttons, making instrument operation very intuitive, including selecting different measurement units, viewing GLP data, reviewing the last 50 measurements, and customizing the instrument according to user preferences.

HI97736 is waterproof and includes a reaction cup holder designed with ridges to prevent the light path from being scratched by the reaction cup, as well as a padded battery compartment that can accommodate three regular AA batteries. The compact design can be comfortably held in the hand, used in the wild or placed on a table. LCD backlight for easy viewing under any conditions.

Optical system of photometer

LEDs that generate very little heat

8 nanometer narrowband interference filter, accurate to+/-1 nanometer, with a 25% increase in optical efficiency.

Refer to the detector and adjust the voltage of the LED to obtain consistent light output.

A concave focusing lens that can reduce errors caused by defects in the reaction cup

Functions on the screen

CAL inspection

Advanced features include CAL Check to verify performance and recalibrate if necessary.

The personalized settings options for the instrument panel include date and time formats, language, and enabling tutorial mode.

Method Options

Backlit display

Backlit dot matrix LCD provides a very intuitive user interface that is easy to read and understand.

Tutorial mode, used to guide users on how to correctly perform step-by-step instructions for measurement.

HI97736 Features/Advantages:

Stable light source:

The internal reference system of the HI97736 photometer can compensate for any drift caused by power fluctuations or environmental temperature changes. Using a stable light source, the reading quickly stabilizes between blank (zero) measurement and sample measurement.

Efficient light source:

Compared to tungsten lamps, LED light sources provide excellent performance. LEDs have much higher luminous efficiency, providing more light while using less power. They also rarely generate heat, otherwise it would affect electronic stability.

High quality filters:

Improved optical filters ensure higher wavelength accuracy and allow for the reception of brighter and stronger signals. The ultimate result is higher measurement stability and smaller wavelength error.

Higher light output:

The focusing lens collects all the light emitted from the reaction cup, eliminating errors caused by possible defects and scratches in the glass. The use of convex lenses reduces the need for indexing cups.

CAL check function:

The CAL check function allows for performance validation and calibration of instruments using NIST traceable standards. Our CAL Check standard vials are used to simulate specific absorbance values for each wavelength to verify the accuracy of subsequent readings.

Large reaction cup size:

The sample cell of HI97736 is suitable for a circular glass test tube with a diameter of 25mm. The relatively long path length of the sample test tube allows more light to pass through

product namePortable photometer for total hardness and pH, with CAL check - HI97736

PH range 6.5 to 8.5 pH

PH resolution 0.1 pH

PH accuracy of ± 0.1 pH reading at 25 ° C

Photometer/colorimeter photodetector silicon photocell

Bandpass filter with a bandwidth of 8 nm

Bandpass filter wavelength accuracy ± 1.0 nm

Circular reaction cup, diameter 24.6 mm (internal 22 mm)

GLP is

Record the reading of memory 50

Battery type/lifespan 1.5 V AA alkaline (3 pieces)/>800 measured values (without backlight)

Automatically turn off after 15 minutes of inactivity (read 30 minutes before measurement)

The ambient temperature ranges from 0 to 50 ° C (32 to 122 ° F); 0 to 100% relative humidity (IP67)

Weight 380 grams (13.4 ounces)

Dimensions 142.5 x 102.5 x 50.5 millimeters (5.6 x 4.0 x 2.0 inches)

Standard configuration: HI97736C comes with CAL inspection standard, reaction cup (2), lid (2), plastic plug for reaction cup (2) and scissors, cleaning cloth for reaction cup, 1.5V AA battery (3), instruction manual and instrument quality certificate, packaged in a sturdy thermoformed suitcase.