Residual Chlorine Sensor

1.Residual Chlorine Sensor application environment description

Residual Chlorine Sensor is designed to measure the concentration of free chlorine or total chlorine in water systems for accurate and reliable measurement of free or total residual chlorine.Residual Chlorine Sensor is used in drinking water treatment plants, canning plants, drinking water distribution networks, swimming pools, cooling circulating water, water quality treatment projects, etc.where continuous monitoring of the residual chlorine content in the aqueous solution is required.

2.Technical parameters of Residual Chlorine Sensor

3.Electrical connection of Residual Chlorine Sensor

1.Installation

Use a supporting flow cell to install the sensor and the flow cell to ensure that the sensor measurement part is placed near the water inlet of the flow cell.Try not to face the water outlet directly to ensure the flow rate is stable.It is recommended that the flow rate be controlled at 30-60L/h to ensure the accuracy of the test.

2.Electrical connection

The cable is a 4-core twisted pair shielded wire, with line sequence definition:

Red cable—Power cable (12~24VDC)l

Black line - ground line (GND)

Blue Line—485A

Green Line—485B

Note: The color of the cable may vary slightly depending on the production batch, and the specific color of the cable is subject to the silk screen printing.

Before powering on, carefully check the wiring sequence to avoid unnecessary losses caused by wiring errors.

4.Maintenance and maintenance

1.PH electrode

When used for the first time or not after a long time, the sensitive bulb and reference fluid should be immersed in 3.3 mol/L KCI solution for more than 2 hours.When using, wash and wipe dry with deionized water (or distilled water) to prevent impurities from being brought into the liquid to be tested.

The terminal part should be kept clean and dry.When the sensor is not in use, it should be cleaned.Insert the protective cover with 3.3mol/L KCI solution, or insert the sensor into a container with 3.3mol/L KCI solution.

Check whether the terminals are dry.If there are any stains, wipe them with anhydrous alcohol and continue to use them after drying.The sensor should avoid long-term soaking in deionized water, protein solutions, strong acid and alkali solutions, and acid fluoride solutions, and prevent contact with silicone grease.The sensor that has been used for a long time may become translucent or contain deposits.At this time, it can be washed with dilute hydrochloric acid and rinsed with water.

When the sensor has a long service life, it can be calibrated and corrected by matching the instrument.When the sensor is maintained and maintained by the above method, it means that the sensor has failed.Please replace the sensor.

2.Residual chlorine electrode

The new electrode and the long-standing electrode need to be activated before use, and the sensor is left to stand in tap water for 24 hours.If the return value is inaccurate, you need to do the following:

Calibrate the sensor by zero point and slope

Return to factory inspection