Description
After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, salinity, and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction. Ohaus Conductivity Meter in Bangladesh
| Applications | pH, oxidation-reduction potential (ORP), conductivity, dissolved oxygen (DO), salinity, total dissolved solids (TDS), temperature measurement |
|---|---|
| Display | Liquid crystal display (LCD) display with secondary information line (on select models) |
| Operation | 4 1.5V batteries (included) |
| Communication | N/A Ohaus Conductivity Meter in Bangladesh |
| Construction | ABS Housing |
| Design Features | Easily replaceable electrodes, automatic shut off feature |
What Is a Conductivity Meter?
A conductivity meter measures the amount of electrical current or conductance in a solution. Conductivity is useful in determining the overall health of a natural water body. It is also a way to measure changes in wastewater procedures at water treatment plants. Conductivity meters are common in any water treatment or monitoring situation, as well as in environmental laboratories. According the Environmental Protection Agency, a good conductivity meter costs about $250.
How a Conductivity Meter Works
The meter is equipped with a probe, usually handheld, for field or on-site measurements. After the probe is placed in the liquid to be measured, the meter applies voltage between two electrodes inside the probe. Electrical resistance from the solution causes a drop in voltage, which is read by the meter. The meter converts this reading to milli- or micromhos or milli- or micro Siemens per centimeter. This value indicates the total dissolved solids. Total dissolved solids is the amount of solids that can pass through a glass-fiber filter.
Conductivity Basics
Conductivity is the electrical current in a solution, but that value depends on the liquid’s ionic strength. It also relies on which ions are present, in what concentration and in what form, such as what state of oxidation or mobility the ions are in. Ions carry a negative or positive electrical charge: anions are negative and cations are positive. In natural water bodies, the ions that contribute to high conductivity result from dissolved minerals and salts.
Temperature Ohaus Conductivity Meter in Bangladesh
The reading of a conductivity meter is usually without a temperature correlation. Since ionic strength, and therefore conductance, is temperature-dependent, the reading may be inaccurate. Thus, many conductivity meters have a specific conductance measurement as well. When in the specific conductance mode, the meter reads the conductivity of the solution at 25 degrees Celsius, not at the actual temperature. This results in a more standardized reading.
Salinity and Total Dissolved Solids
Salinity is the amount of dissolved salts in a solution. Conductivity meters equipped with a salinity option internally convert the conductivity reading to one of salinity. Fresh water bodies should have a much lower salinity concentration than ocean water, which is estimated between 20 and 30 parts per trillion, according to Washington State’s Department of Ecology. Total dissolved solids can be determined by multiplying the conductivity measured in microSeimens by a factor of 0.67.
Calibration Ohaus Conductivity Meter in Bangladesh
Calibration leads to a more accurate reading. To calibrate a meter, follow the instructions for that meter; in general, the steps are easy and standardized. The meter usually has a menu item that allows you to enter the calibration mode or a setting on the side that you can adjust with a small screwdriver or tool. Place the probe in a solution with a known conductivity value and temperature and set the meter to that conductivity. Sometimes several standards are required. The Environmental Protection Agency’s EPA 120.1 outlines a standardized analytical procedure for calibrating and measuring using a conductivity meter.
What does conductivity meter measure?
Conductivity meter allows us to measure the level of conductivity in solutions. Conductivity is an ability of materials (solutions, metals or gases) to pass an electric current. While all materials possess the ability to pass electric currents, the degree of such ability can vary. Substances with conductive aqueous solutions are referred to as electrolytes. These electrolytes are able to break down into ions when dissolved in water, thus creating free ions in the solution. Acids, bases, and salts are examples of electrolytes. Substances with non-conductive aqueous solutions are referred to as nonelectrolytes. These substances are often composed of covalent bonds, and examples include Carbon-containing compounds, fat, and sugar. And. So so. And. So so. And. So so
Solutions with high concentration of ions will exhibit high conductivity. On the other hand, solutions with low concentration of ions will result in small conductivity reading. A few factors that effect conductivity measurement are temperature, concentration of ions, and the nature of ions present in the solution.
The figure shows the meaning of conductivity with three different examples. Nonelectrolyte substance, ethanol, does not produce free ions in solution and therefore cannot conduct electricity. Potassium Chloride (KCl) is a strong electrolyte that completely ionizes in water, thus possessing high conductivity. Acetic acid is a weak electrolyte that does not fully ionize in water, conducting low amount of electricity. (Figure source: https://opentextbc.ca/chemistry/chapter/11-2-electrolytes/)
Applications Ohaus Conductivity Meter in Bangladesh
Conductivity measurements are important in many aspects of life, not just in scientific inquiries. Conductivity meters are used widely in areas such as water treatment and agricultural industries. Here are some examples of conductivity meter application found in real life:
Used to evaluate the quality of water – is the water drinkable or usable for irrigation/industry?
Measure the quality of water in wastewater facility for treatment – corrosion measurement, etc And. So so. And. So so. And. So so
Water pollution monitoring And. So so. And. So so. And. So so
Measure salinity of the surface water – important for wildlife, aquatic plants, and agriculture And. So so. And. So so. And. So so
Evaluate purity of water used for pharmaceuticals, cosmetics, food, etc And. So so. And. So so. And. So so
How does a conductivity meter work?
A conductance of a solution can be measured by applying an alternating electrical current to the two electrodes present in the probe. While this electrical current is applied to the solution, the cations (ions with a + charge) move to the negative electrode and the anions (ions with a – charge) move to the positive electrode. This movement of the ions leads to the solution to be conductive. And. So so. And. So so. And. So so
Best Quality & No Compromise And. So so. And. So so. And. So so
We are always providing the best quality Scientific Laboratory Equipment. We always try to supply our clients with the original Brand & Quality tested products with service; Scientific Laboratory equipment in Bangladesh online store – www.jadubazar.com And. So so. And. So so. And. So so
Our Facebook Page Click Here And. So so. And. So so. And. So so
Reviews
There are no reviews yet.