Description
We sale Benchtop Conductivity Meter in Bangladesh. It’s for conductivity, salinity, and TDS and has many smart features. It is accurate for standard conductivity measurement.
After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a benchtop conductivity meters. Starter 3100C can test for conductivity, salinity, and TDS and has many smart features that make it as intuitive as it is accurate for standard conductivity measurement.
| Applications | Conductivity, total dissolved solids (TDS), salinity measurement |
|---|---|
| Display | Backlit liquid crystal display (LCD) |
| Operation | AC adapter (included) Benchtop Conductivity Meter in Bangladesh |
| Communication | RS232 (included) Benchtop Conductivity Meter in Bangladesh |
| Construction | ABS housing, standalone electrode holder, replaceable in-use cover |
| Design Features | 99 measurement memory, automatic and manual endpoint functions, automatic and manual temperature compensation |
Benchtop Conductivity Meter in Bangladesh
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There are three types of conductivity probes. two electrode probes, four ring probes, and toroidal probes.
Two & Four Electrode Probes
The simplest design is a two electrode probe that utilizes an amperometry approach to make the measurement. A known AC voltage is applied at a specific frequency between a pair of electrodes in solution. The current produced is measured and reported in conductivity units referenced to a calibrated standard. Electrodes are made of graphite or metal. Fouling due to mineral deposits and polarization at high concentrations are drawbacks of this technology. Two electrode probes are best used in clean water applications when the conductivity remains less than 5 mS/cm. These probes have a limited range, therefore you would have a dedicated probe/meter for each range. The voltage is proportional to the conductivity.
A risk of fringe field effect is greater with this type of probe. This happens when the measurement field, the constant current, extends outside of the probe. You only need to worry about the fringe field effect if your probe is too close to the sides of the container or pipe where you are taking an EC measurement. A good rule is to keep the probe at least an inch away from all surfaces. The distance you need to keep the probe varies, reference the manual.
NOTE: Both two and four electrode probes may incorporate an outer sleeve over the cell channel. The sleeve MUST stay in place during the measurement as this defines the volume of solution measured and the cell factor of the probe.
Toroidal Probe Benchtop Conductivity Meter in Bangladesh
The third type of conductivity probe manufactured by Hanna is often found in industrial processes connected to a controller. An inductive, electrodeless or toroidal conductivity probe, uses two or more toroidal transformers which are inductively coupled side by side. These are encased in an inert plastic sheath. By applying a high frequency voltage to the drive toroid, a magnetic field develops that induces a current in the surrounding solution. A receiver toroid on the other side of the sensor measures the strength of the induced current. The strength depends on the conductivity of the solution. One benefit of this technology is that there are no polarization effects. Another benefit is in the choice of material encapsulation. This can produce chemical resistant and relative immunity to fouling.
Electrical Conductor Benchtop Conductivity Meter in Bangladesh
The conductivity of the material is the capacity of the material to transmit something like electricity or heat. Electrical conductors are the materials or substances in which the electrons, electrical charge carriers, are abundantly available. Electrons are the particles which make easy the electricity to pass through the material when voltage is applied across it. In the electrical conductors, the electrons can flow in either direction. Metals are the good conductors of electricity. Most of the d-block elements of the periodic table are good electrical conductors. In these d-block materials, the electrons are freely available which are very essential to transmit the electricity. Some liquids are also good electrical conductors. The saturated salt water solution is an example of it. Gases are bad electrical conductors as the exchange of electrons between atoms is not possible because of distances among them.
The electrical conductivity of the material is managed by the electrons which are lightly attached to the atom and are easily available to be separated from it. When the electric current flows through the material, electrons carry the electric current from one end to another but they do not move from their places. This vibration transfers the charge from them to nearby electrons and nearby electrons then start vibrating and transfer the charge to neighboring electrons. This way, electricity transfers from one place to another. When the electricity is not passing through the conductor, the electrons do not have any charge difference and therefore they do not vibrate and do not disturb neighboring electrons.
Types of the Electrical Conductor
There are four types of conductors, namely, good conductors, semiconductors, resistors and non-conductors. Non-conductors are also termed as insulators. In the equilibrium condition, electrical conductors exhibit the following properties,
- Conductors have free electrons available.
- Conductors allow electrons to move with little or no resistance.
- The charge density is equal to zero.
- There is no potential or electric field difference within the conductors
- Electrons on the surface of the conductors are only available to carry current when applied.
Metals are good conductors of electricity or heat as they have a pool of electrons loosely attached to atoms are free to move. Outside pressure does not affect the performance of electrical conductors as outside pressure does not create any effect on the size of the metals. And. So so. And. So so. And. So so
On the other hand, the difference in temperature affects its performance. At extremely low temperatures, the resistance offered by conductors to electricity becomes minimal as compared to the room temperature resistance. This phenomenon is known as superconductivity and the metals which exhibit this property and termed as superconductors. And. So so. And. So so. And. So so
Size or thickness and length of the conductor also affect the performance. Thinner wire shows more resistance as compared to the thick wire. So it can be said that the resistance of a wire is inversely proportional to the cross-sectional area. And. So so. And. So so. And. So so
The length of the wire also affects the flow of electrical current. The resistance offered by a wire is directly proportional to the length of it. Longer the wire higher will be the resistance. And. So so. And. So so. And. So so
Good Conductor Benchtop Conductivity Meter in Bangladesh
Almost all the metals are good conductors of electricity as they allow transferring the electricity with little resistance through them. Some non-metals are also exhibiting electrical conductivity. For example, graphite is a good conductor of electricity. But the structure of it is such that one of the four electrons in this tetravalent material is free which takes the part to transfer the electricity. In the metals, a pool of electrons is available to transfer the electricity. And. So so. And. So so
Some metals like copper, iron, silver, aluminum and gold are good conductors of electricity and are used widely. Though gold and silver metals are very good conductors bur are costlier than copper and aluminum. Hence, they are used in very sophisticated instruments like computers, mobiles and other instruments where a precise amount of electricity is required. Copper is abundantly available and is widely used in home appliances and circuits. And. So so. And. So so. And. So so
Semiconductor, Resistor, Insulator
Semiconductors are those materials which have the sensitivity against electricity between good conductors and insulators. Thus, semiconductors are non-metals and have limited electrical conductivity. In the pure form some non-metals like silicon, germanium is good semiconductors. By adding some impurities to them. Almost all the electrical and electronic devices use semiconductors to control the flow of currents in them. And. So so. And. So so. And. So so
A resistor is a small electronic device which resists and reduces the electrical current and supply the electricity to the electrical or electronic goods in a controlled manner. Due to the resistance offered by resistors, save these goods from damage that may occur due to excessive supply of electricity.
Insulators are the materials which do not allow the electric current to flow through them. In these materials, electrons are bonded tightly with their atoms and do not get separated even after the application of the strong potential difference. Some common examples are wood, plastic, glass, rubber, etc. House-hold electric circuits. And devices are covered by the insulators to avoid energy loss and safety. Covering the copper wires by these insulators makes the electricity more efficient by concentrating the flow. And. So so. And. So so. And. So so
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