Conductivity is an indicator of the conductivity of a medium. The conductivity of an aqueous solution is directly proportional to the concentration of dissolved solids, and the higher the concentration of solids, the greater the conductivity. The conductivity of water is related to the amount of inorganic acids, bases, and salts it contains. When their concentration is low, the conductivity increases with increasing concentration. Therefore, this indicator is commonly used to infer the total concentration or salt content of ions in water.

The digital conductivity online analyzer is composed of a digital conductivity transmitter and a digital conductivity sensor.

1、 SWM-D100 digital conductivity transmitter

SWM-D100It is a universal water quality single parameter online monitoring device used to connect digital sensors. It can monitor the measurement data and working status of sensors in real time, calibrate and calibrate sensors, and has functions such as data storage, data transmission, and external control. Equipped with a semi transparent and semi reflective LCD screen, the operation interface is simple and friendly, and the professional requirements for operators are not high.

Dockable digital sensors include:PH、ORPConductivity, turbidity, dissolved oxygen, ion concentrationCODAnd other multi parameter factors, etc. Suitable for industries such as surface water, drinking water, municipal sewage, tap water, aquaculture, industrial wastewater, sewage treatment, circulating cooling, and process monitoring.

Performance characteristics:

1. The device can automatically recognize the connected sensors, plug and play;

2. Equipped with a semi transparent and semi reflective LCD screen, visible under strong outdoor light;

3. Having a friendly Chinese operating interface, easy to operate;

4. It has functions such as data storage, viewing, and exporting, and can set storage periods;

5. Automatically read the internal working parameters of the sensor, and replace the sensor without calibration;

6. useRS485Bus based communication, equipped with standardMODBUSProtocol, easy to integrate with the system;

7. Built in lightning protection, surge protection, anti reverse connection, overload protection and other protective measures;

8. haveIP65Protection level, suitable for various indoor and outdoor installation environments.
Technical indicators:

2、 SY-ID-200 Digital Conductivity Sensor

SY-ID-200The digital conductivity sensor is an intelligent digital analysis device for conductivity analysis in water quality. Its measurement principle is Ohm's law, and it uses a quadrupole graphite electrode with stable and reliable electrode constants and long lifespan. Sensors equipped with long-distance transmissionRS485Communication interfaces and standardsModbusProtocol, easy to integrate into the system. The shell is made of highly corrosion-resistant materials, and the overall structure hasIP68Protection level, can work underwater for a long time10Depth of meters and various harsh working environments. It is equipped with high-precision temperature sensors and temperature compensation algorithms. Equipped with professional data acquisition software, it can monitor the working status and measurement results of sensors in real time, and conveniently perform calibration, recording, fault diagnosis and other operations.

This sensor has many advantages such as high linearity, good stability, and long service life, and is widely used in industries such as surface and groundwater, municipal sewage, industrial wastewater, waterworks, sewage treatment plants, boiler reflux water, deionization process, reverse osmosis process, aquaculture, etc.

working principle:

Conductivity is an indicator of the conductivity of a medium. Units usually useμS/cmormS/cmTo indicate that the conductivity of pure water at room temperature is less than0.05μS/cmThe conductivity of natural or surface water100~1000μS/cmThe conductivity showcase of acid-base solutions1000mS/cm.

By measuring the electrical polarization between two coaxial electrodes in a solutionVAnd the currentICalculate solution resistance based on Ohm's lawR=V/IThe reciprocal of its resistance is defined as conductivityS=1/RCombining the electrode constants related to the electrode itselfKThe conductivity of the solution can be directly determined.

Technical parameters:

Technical features:

1. Corrosion resistant shell,POMtexture of material,3/4NPTThreaded interface for easy installation;

2. Automatic temperature compensation,NTC30KThermistor;

3. Epoxy resin adhesive filling, strong resistance to high and low temperatures, and good long-term stability;

4. Quadrupole measurement design to avoid polarization phenomena caused by prolonged electrode operation;

5. Precision machining, coefficient of each electrodeKStable, high measurement accuracy;

6. graphite/Epoxy resin material measuring body, with stronger corrosion resistance and pollution resistance;

7. The extension cable is waterproof, corrosion-resistant, and anti-interferenceAVVRCable;

8. 0~200mS/cmAutomatic range switching, automatic coefficient switching, higher measurement accuracy;

9. RS485Output, strong resistance to clutter and signal interference, and better data stability;

10. Equipped with calibration record storage function, plug and play, no calibration required for initial use;

11. haveIP68Protection level.