A device for testing water purity. TDS meter - we measure the hardness of water from various sources, including natural ones. What users say

Measuring instruments are devices that can be used both at home and for professional measurements of chemical and/or physical condition objects. The AQUA-LAB company presents a range of measuring devices that allow measurements to be made with accuracy that allows us to speak of compliance with Russian and international standards.

Instruments for determining water quality

PH meters can be used for household testing of tap or artesian (well) water for acidity, which is one of the important indicators of the suitability of water for household use.

ORP meters allow you to control the redox potential of a liquid, which must correspond to the vital characteristics of a person. The electronic device produces a result that is formed by measuring the potential difference between the platinum and silver-silver chloride electrodes. The quality of ORP measurement results using the company’s instruments provides reliable information about the quality of consumed water.

Salinometer (salinometer) or TDS meters, which the company offers, are used to determine the salt content in water that will be used in autonomous systems heating, which is important for the long-term performance of the system. Another application is swimming pools, and this is not to mention other everyday issues such as hair shine or dry skin.

Measuring the Healthiness of Foods

The company offers a line of products that measure the amount of nitrates in agricultural products, which is not difficult for the instruments supplied by AQUA-LAB. In addition, an optical refractometer will become an indispensable device for analyzing alcohol-containing liquids. The company will consider supplying other devices that will improve food quality control.

Instruments for studying environmental quality

The company offers a number of devices that analyze external factors: gas pollution, radiation or the effects of energy fields that affect comfort and even life safety. In particular, dosimeters that determine not only the level of radiation, but also the amount of radiation doses received or an indicator of electromagnetic fields such as SOEKS Impulse.

The AQUA-LAB company assumes obligations to provide its customers with consumables(calibration liquid, buffer solutions, etc.), which guarantees the quality of measurements made using our instruments.

The quality of water consumed by humans is under constant control.

The parameters that water must meet are set by the current SanPiN, as well as by Order No. 162/pr, issued on 04.04.14 by the Ministry of Construction of the Russian Federation.

In order to determine the above indicators, special instruments are used. Some of them are discussed in this article.

Oximeters

This is the name given to devices that allow you to determine the physical content of oxygen dissolved in water. Depending on the model, the devices are used both in industrial enterprises and in private plots.

The most popular models in our country today are the models given below.

Extech DO600+

A kit that includes a waterproof device. The product is designed to measure the degree of concentration of oxygen dissolved in water, both in laboratory and field conditions. The design of the gas analyzer is equipped with a 5-meter extension cord and has a special weighted protective mount. This allows you to determine the required indicators in open reservoirs and in vessels. Oxygen levels can be determined as follows: percentage(0-200), and in fractions of concentration (0-20 mg/l). The device has a built-in adaptation function for the height of the measurement location (0 – 6096 m) and salinity (0 – 50 * 10 -3).

The product has a built-in memory that allows you to save the results of the last 25 measurements. If during operation there is an increase in the consumption of the built-in battery, the device automatic mode performs self-calibration.

According to the requirements of current regulations, the water resistance of the device must be at least IP57. The standard equipment of the device includes:

• DO – electrode;
• membrane spare cap;
• touch protective cap;
• self-powered electrolytic batteries 4*3V type CR2032;
• carrying strap.

Dimensions of the device are 36*176*41 mm. Weight 110 g.

The device is designed to measure oxygen dissolved in water, as well as to diagnose the suitability of a particular reservoir for fishing and fish farming.

Another area of ​​use of the device is to determine the sanitary condition of natural and artificial reservoirs from the point of view of protection natural environment by such an indicator as the level of oxygen dissolved in water.

Measurements are required to be carried out at certain intervals. This is due to the fact that the concentration of oxygen in water is a variable value (depending on the layer of water, time of year, time of day, etc.).

Measurements can be taken in percentage, mg/l or ppm.

Before starting work, the device is calibrated against ambient air.

Multi-parameter device U-50 for determining water quality

The series of these portable analyzers has the ability to perform simultaneous measurements and display up to eleven parameters. An easy-to-use and reliable design makes the devices of this model range among the most effective when monitoring groundwater, drainage channels and open reservoirs. The device has an intuitive menu system.

All analyzers of the specified model range have sensors and a built-in control unit. The device provides a wide range of choice of functions. The length of the connecting cable is about 10 meters, which allows measurements to be taken at different depths. The GPS navigator built into the device shows on the map the point at which measurements are being taken.

The measurement results are stored in memory and can be processed by a PC using a special program. The device allows you to perform the following measurements:

• pH (mV), pH(pH);
• redox potential (ORP);
• (COND) - electrical conductivity;
• (OD) – dissolved oxygen;
• (TDS) – total content of solids dissolved in water;
• (SAL) – mineralization expressed by electrical conductivity;
• (SG) – specific gravity sea ​​water;
• (TURB) – turbidity (LED is used as a light source, the method of scattering light forward at 300m);
• (TEMP) – water temperature;
• (DEP) – measurement depth.

Advantages of the device:

• compactness;
• ability to work at various depths;
• user-friendly interface;
• rapid stabilization of readings taken;
• Only the readings of the required measurements can be displayed on the display;
• performing measurements in different units;
• significant operating life from autonomous power sources (up to 70 hours);
• ease of installation and replacement of the necessary sensors;
• the ability to perform calibration not only manually, but also automatically.

Chlorimeter CL200+

Used to perform highly accurate measurements of chlorine content in water.

The main advantage of the device, due to the use of a number of innovative solutions in its design, is a much wider measurement range (0.01 - 10 mg/l) and the multifunctionality of the product, which allows you to measure the pH, as well as the redox potential of the water being tested.

Field of application of the device: performing measurements to determine the content of chlorine, pH and ORP in water in boilers, swimming pools, aquariums, water treatment systems, etc.

Design Features:

• All measurements are performed digitally. Their evaluation results are not affected by turbidity and color measurements;
• use of only one ExTab chemical reagent for all measurements and the minimum time required to obtain the result;
• convenient LCD screen;
• presence of a built-in microprocessor;
• auto calibration, memory, automatic shutdown, battery level indicator;
• availability three different replaceable electrodes for ORP, pH and Cl;
• waterproof housing;
• a set of accessories necessary for work (flasks and holders for them, buffer solutions, reagent);
• The analysis for chlorine occurs according to several parameters at once: analysis for the presence and concentration of hypochloride (OCL-), free chlorine (CL2), chlorine nitrides.

Operating parameters:

Salinity meter (TDS meter) TDS - 3

Designed to determine water hardness. Used to analyze the presence of salts in water. The device allows you to measure the conductivity of water, the degree of its purification and quality.

This salinity meter measures the amount of solid particles dissolved in a fixed volume of water (Total Dissolved Solids).

The capabilities of the device allow you to quickly determine the water temperature, its quality and hardness, regardless of what source the sample was taken from.

Allows you to calculate the amount of metal salts dissolved in water.

Water is the source of life on our planet. And human health largely depends on its quality. This explains the importance of monitoring the quality of the water you use.

Nowadays, devices for determining the quality of water at home are in great demand, therefore, for the purposes of quality control, a number of WaterLiner devices are created. This includes devices of various levels (from household to professional). You can measure water parameters such as pH, oxidation-reduction potential, electrical conductivity, salinity, oxygen concentration.

A device for determining water quality, buy WaterLiner, comes in several types:

• , allows acidity to be measured over a wide range
• , also called ORP meters or RedOx meters, needed to measure the level of redox processes
• or EC meters, measures electrical conductivity in aqueous solutions
• or TDS meters, allowing to measure salt content
• or DO meters, needed to measure total and dissolved oxygen in water

How does a water quality determinant work?

Each MetronX Water Quality Meter waterproof, which allows it to be used in difficult conditions operation.

Technologically, the devices consist of a housing with a built-in display and control buttons, to which a replaceable electrode is attached. What powers the WaterLiner meters? The devices are powered from batteries, the service life of which, due to the energy-saving function, is quite long, so the device for determining the properties drinking water will work for a very long time.

Depending on the model, the quality meter may have possibility of manual or electronic calibration according to one or another nominal value. Calibration is carried out using calibration solutions of appropriate ratings. Calibration must be regular, then the quality meter will produce guaranteed accurate measurements throughout its entire service life.

MetronX meters basically include all the components that are necessary to measure the water quality indicators for which the meter is intended.

Device for measuring water purity- this is a new development of American scientists. Now it is in our country. After all, what he eats is vitally important for every person. Including water, which forms the basis of most dishes or which we simply drink. A device for determining the purity of water will allow you to easily, quickly and, most importantly, qualitatively determine whether this water is worth drinking or not. What is a Water Checker device? This is a compact device that is easy to take with you anywhere. The device operates on two AA batteries. To determine the degree of water contamination, you need to pour a few drops into a special reservoir and press one button. After a few seconds, the result will appear on the display in the form of a digital value and emoticons. After this, you will know exactly what kind of water is in this source, whether you or your loved ones can drink it. This is an especially indispensable thing for those who have children in the family, as they are more sensitive to various impurities in water.

Features of the device for measuring water pollution

• Just one press of a button is enough to measure the degree of purity of water from a tap, from a filter, from a reservoir, from a bottle or mineral water
• Water Checker displays the measurement result with clear icons in the form of emoticons
• The result is displayed on the LCD display in numerical form
• The water testing device has a compact size, waterproof housing
• Water Checker features low energy consumption
• The device is easy to use

Instructions for using a device for measuring impurities in water

1. Fill the special water tank to the marked level
2. Press and hold the measurement button until you hear a beep
3. After a few seconds, the device for measuring the degree of water contamination will show the result on the display
4. It is easy to understand the degree of suitability of water for drinking using one of five emoticons
5. Interpret digital values you can use the table in the instructions

Notes on using the device

• For greater measurement accuracy, it is necessary to clean the Water Checker from water droplets
• The amount of water must exactly match the level on the device, otherwise the readings will not be accurate

Technical characteristics of the device for measuring the degree of water purity Water Checker

Autonomous water purity monitoring device EL-1105

A unique device will allow you to determine the level of impurities in any water in a few seconds and give you recommendations on its use. Water from taps, reservoirs, bottled, etc. water in different parts of the world has various indicators cleanliness. Wherever you are: on a trip, on a business trip, on a hike or at the dacha, you can evaluate whether you should drink this water or not.

The level of impurities is defined as (TDS - Total Dissolved Solid) and indicates the concentration of insoluble substances distributed in water. Measured in ppm. The measurement table for the device is given below.

Getting started.

1. Install 2 AAA elements according to the polarity.
2. Fill the container to the test mark with water.
3. Press and hold the button until you hear a beep.
4. The results will appear on the display.

Water tester elements:

1. Sensor contacts
2. Water container
3. minimum filling level
4. Display
5. Frame
6. Start test button
7. Waterproof gasket

Correspondence of impurities (TDS) and icons:

0-30 - Very clean water

31-100 - Clean water

101-200 - Normal water

201-300 - Water not recommended for consumption

301-999 - This water You can't drink!

Table of TDS values ​​for standard water types:

Attention!Some types of high-quality mineral water contain insoluble salts

leftovers.

The test result for this water may give a strongly negative result. This is not a contraindication for use - however, you must be sure that this mineral water- genuine, not artificially mineralized.

Water is an integral component of our life. The environmental situation in the world is deteriorating, and this leads to pollution water resources. To be healthy and produce quality products, you need to know what the magic liquid is.2 A. And here you can’t do without water quality meters. Some have been using them for a long time, while others have never held them in their hands. But it is recommended to have smart devices not only in industry, in laboratories, but also at home.

What are water quality meters?

Special instruments used to assess the basic parameters of water are called water quality meters or analyzers. They are:

• professional:
• household;
• semi-professional.

Common devices are those capable of performing only one analyzing function. More complex devices that provide a detailed analysis of the properties of water according to several parameters are called multiparameter meters. They are used:

• at home for analyzing water used for drinking, domestic needs, aquariums;
• in laboratories for conducting experiments and control measurements during expeditions;
• in industry (food, cosmetics, chemical).

Analyzed parameters

SanPiN determines the parameters by which water is considered fit for consumption. It is almost impossible to determine these indicators by eye, but with the help of analyzers it is quite simple. The water quality meter allows you to determine:

• oxidation-reduction potential (ORP);
• the presence in the liquid of nitrites, nitrates, fungi, chlorine, dangerous organic compounds, metal salts;
• hardness level;
• turbidity;
• liquid pH;
• amount of oxygen;
• electrical conductivity.

When buying a water analyzer, you should clearly know what parameters will need to be monitored and controlled. The more functions a device has, the higher its price. Using all the capabilities of multiparameter meters is not always necessary, so the choice is made taking into account the initial characteristics of the water in a particular region. And using these devices you can test any water:

• drinking;
• technical;
• ground;
• sewage;
• rain;
• river, sea or other bodies of water.

Types of meters

The analyzer can be stationary or portable. Each of them conducts water research according to a certain indicator. In this case, they are divided into types:

• Oximeter . Allows you to detect the oxygen content in water. It is widely used in industry; it is less commonly used in household farming. Aquarium owners use such devices.
• Chlorimeter . Allows accurate measurements showing the presence of chlorine in a liquid. It is used in the maintenance of swimming pools, boilers, aquariums, and in water treatment systems.
• Salt meter . Determines the hardness of water and the presence of dissolved metal salts in it. Used to test purified water passing through filters. Capable of analyzing almost any water.
• Conductivity meter . Used to determine the electrical conductivity of water. You can study both ultrapure aqueous solutions and those saturated with chemical compounds that have high conductivity.
• pH meter . Accurately and quickly determines the activity of hydrogen ions in a liquid. Can be used not only to determine the acidity level of water, but also other liquids (juice, milk, etc.)
• ORP meter . Tester for assessing the redox potential of the test water. It finds substances that are undergoing reduction or oxidation. Used in laboratories of industrial enterprises and medical institutions.

Depending on your goals, you can buy a suitable water quality meter that will be accurate in operation and affordable.