SEM304-PHIntelligentPHOnline sensors

Product IntroductionPRODUCT INTRODUCTON

SEM304-PHtypeIntelligent PH online sensorThe internal reference liquid is at least100KPa（1Bar）Under pressure, it slowly seeps out from the microporous salt bridge, and its forward seepage continues20More than a month. This reference system is very stable, and the electrode life is doubled compared to ordinary industrial electrodes.Used for environmental water quality monitoring and acid testing/alkali/Salt solutions, chemical reaction processes, and industrial production processes can meet the online requirements of most industrial applicationspHMeasurement requirements.

Product FeaturesPRODUCT FEATURES

• Has good repeatability and stability;
• Cleaning and activation are simple, and the balance speed is fast;
• Automatic temperature compensation function;
• Optional analog-to-digital conversion module for digital signal output, strong anti-interference ability, and long transmission distance;
• The on-site installation of sensors is convenient and fast, achieving plug and play functionality.
• Signal output:RS-485（Modbus/RTUProtocol for easy connection to third-party devices.
• Double high impedance differential amplifier, strong anti-interference and fast response speed.
• IP68Protection level.

Technical ParameterTECHNICAL PARAMETER

Installation methodINSTALLATION

3/4'NPTThreads (pipe threads) are convenient for submerged installation or installation in pipelines and tanks.

Application scenariosAPPLICATION

• In the process flow of sewage treatment plant inlet and outlet, sedimentation tank, biochemical reaction tank, etcPH online monitoring；
• The municipal water supply industry, surface water, aquaculture and other industriespHmonitor;
• Water and wastewater treatment processes in various industrial production processesPHOnline monitoring.

ordering guideORDERING GUIDE

Usage and maintenance

Intelligent PH online sensorWhen measuring, it should be cleaned thoroughly in distilled water (or deionized water) and dried with filter paper to prevent impurities from entering the measured solution. One third of the sensor should be inserted into the measured solution.

When the sensor is not in use, it should be cleaned and inserted into a protective sleeve containing 3.5mol/L KCL solution, or the sensor should be inserted into a protective sleeve containing 3.5mol/L KCL solutionIn the container of the solution.

Check if the wiring terminals are dry. If there is any contamination, please wipe them with * and blow dry before use. Long term immersion in distilled water or protein solutions should be avoided, and contact with organic silicone oils and fats should be avoided. Sensors that have been used for a long time may have their glass film become semi transparent or have sediment attached. In this case, dilute hydrochloric acid can be used to wash and rinse with water. When sensors are used for a long time and measurement errors occur, they must be calibrated and corrected in conjunction with the instrument.

When the sensor cannot be calibrated and measured during maintenance and upkeep using the above methods, it indicates that the sensor has failed and should be replaced.