Online PH Meter

1.Online PH Meter Product Introduction

Online pH Meter accurately measures pH in laboratory or field applications and can stream data in real time or log data during lengthy experiments.ZS3 Online PH Meter is an instrument that can monitor PH online.It integrates PH sensor and measurement module communication storage, which can quickly and accurately record key parameters in water.At the same time, the instrument supports extended water quality multi-parameter sensors, including but not limited to pH, dissolved oxygen (DO), conductivity, turbidity, temperature, ammonia nitrogen, etc., which can be combined and configured according to different needs and applications, record and store historical monitoring data and alarm history records, and support the export of historical data.xlsx.The RS485 interface supports MODBUS-RTU communication protocol to facilitate users to communicate freely with PLC, DCS, configuration software, DTU and other devices to connect and transmit data.

2.Online PH Meter application field

Online multi-parameter water quality detectors are widely used in the monitoring and control of various water bodies, including but not limited to the following fields:

1.Water plant: used to monitor the pH value, dissolved oxygen, turbidity and other parameters of tap water to ensure the safety and hygiene of tap water.

2.Groundwater monitoring: used to monitor the pH, conductivity, temperature and other parameters of groundwater in order to promptly discover and solve water quality problems.

3.River and lake monitoring: used to monitor the water quality of rivers and lakes, such as dissolved oxygen, turbidity, ammonia nitrogen and other parameters, so as to take pollution control measures in a timely manner.

4.Ocean monitoring: used to monitor the ocean's water quality, such as salinity, dissolved oxygen, temperature and other parameters, so as to promptly detect and control marine pollution.

5.Sewage treatment: used to monitor the water quality parameters of sewage, such as pH, COD, ammonia nitrogen, etc., in order to control and regulate the sewage treatment process.

6.Industrial production: used to monitor the water quality conditions in the industrial production process, such as pH, conductivity, dissolved oxygen and other parameters, so as to adjust the process process in a timely manner and ensure product quality.

7.Scientific research: used for water quality monitoring in the field of scientific research, such as lake eutrophication, climate change and other research.

3.Online PH Meter technology features

1.High reliability: suitable for long-term working in the wild environment, stable measurement and strong anti-interference ability.

2.Flexible and portable: Each probe can be freely combined, replaced independently, and used for plug and play.

3.Scalability: Freely combine multiple sensors.

4.Multiple applications: rapid on-site measurement, emergency monitoring, or long-term online monitoring of groundwater, river water, lake water sources, and urban pipeline water.

5.Tough shell: ABS+PC material, corrosion-resistant, can work normally for a long time.

6.Compact structure: can be installed in smaller sizes.

7.Communication connection: RS485 extended interface, master/slave interface isolation can communicate independently.

4.Online PH Meter Technical Parameters

5.Online PH Meter Product Size

Dimension drawing

6.Online PH Meter sensor configuration (optional)

PH	Measurement principle: Electrochemical (salt bridge) signal method: RS485 (MODBUS-RTU) Measurement range: 0~14 (PH) Resolution: 0.01 Measurement accuracy: ± 0.1PH ± 0.1℃ Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 installation method: immersion installation, NPT3/4 thread
ORP	Measurement principle: Electrochemical (salt bridge) Signal method: RS485 (MODBUS-RTU) Measurement range: -1500~+1500 (mV) Resolution: 1mV Measurement accuracy: ± 6 mV Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
COD	Measurement principle: UV 254 absorption method dual light source measurement Signal method: RS485 (MODBUS-RTU) Measuring range: 0~200mg/L 0~500mg/L Resolution: 0.1mg/L Measuring accuracy: ± 5% ±0.3℃ Cable length: 5 meters standard Measuring environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof level: IP68 Installation method: immersive installation, NPT3/4 thread self-cleaning function: with automatic cleaner, can prevent biological adhesion and avoid light window contamination, so as to ensure that long-term monitoring is still stable; automatic cleaning time and cleaning times can be set, power consumption is 0.7W
Conductivity EC	Measurement principle: contact electrode method Signal method: RS485 (MODBUS-RTU) Measuring range: 0~5000 us/cm Resolution: 1 us/cm Measuring accuracy: ± 1.5% ±0.1℃ Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
Dissolved oxygen DO	Measurement principle: fluorescence life method Signal method: RS485 (MODBUS-RTU) Measuring range: 0~20mg/L Resolution: 0.01mg/L Measuring accuracy: ± 2% ±0.3℃ Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
Suspension SS	Measurement principle: scattered light method Signal method: RS485 (MODBUS-RTU) Measuring range: 0~2000mg/L Resolution: 0.1mg/L Measuring accuracy: ± 5% (depending on sludge homogeneity) Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
Turbidity TU	Measurement principle: scattered light method Signal method: RS485 (MODBUS-RTU) Measurement range: 0~40NTU 0~1000NTU 0~3000NTU Resolution: 0.1NTU Measurement accuracy: ± 1% ±0.3℃ Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
Ammonia nitrogen	Measurement principle: ion selection electrode method Signal method: RS485 (MODBUS-RTU) Measuring range: 0-100mg/l Resolution: 0.01mg/l Measuring accuracy: ±1mg Cable length: 5 meters standard Measurement environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof grade: IP68 Installation method: immersive installation, NPT3/4 thread
Chlorophyll	Measurement principle: fluorescence method Signal method: RS485 (MODBUS-RTU) Measuring range: 0-400ug/L Resolution: 0.01ug/L Measurement accuracy: R2>0.999 Cable length: 5 meters standard Measuring environment: temperature 0~50℃ (no freezing), <0.2Mpa Waterproof level: IP68 Installation method: immersive installation, NPT3/4 thread self-cleaning function: with automatic cleaner, can prevent biological adhesion and avoid light window contamination, so as to ensure that long-term monitoring is still stable; automatic cleaning time and cleaning times can be set, power consumption is 0.7W