pH is a measure of the acidity and alkalinity of water. For drinking water, the control of pH value is crucial to the quality and safety of water. A pH value that is too high or too low will have an impact on human health. If the pH value of drinking water is too low, it may cause the release of dissolved metal ions in the water, such as lead, copper, etc. These metal ions are harmful to health. In water plants, acidic water can also cause corrosion to water pipes and equipment. On the contrary, if the pH value of drinking water is too high, it may cause the production of alkaline scale, affecting the taste and drinkability of the water. Water plants use pH controllers to monitor pH values in real time to ensure that the tap water supplied to residents meets drinking water quality standards. By monitoring the pH value, the water plant can adjust the water treatment process in time to ensure that the pH of the water is appropriate. In addition, the measurement of pH value through online pH analyzer can also help water plants discover water source pollution or abnormal treatment processes, and take timely measures to ensure water quality safety. The APX1-C1Z online Ph Orp Analyzer developed and produced by Daruifuno can be used in raw water treatment, coagulation and sedimentation, activated carbon filters, factory water quality monitoring and other aspects of water plants.
Features of Online pH ORP Analyzers
Real-time monitoring
Compared with laboratory and portable instruments, the biggest advantage of online pH ORP meters is that they can continuously monitor the pH and ORP values of water quality in real time.
Automatic adjustment
The online Ph Controller is equipped with two settable relays, which can set high and low alarm values, connect to the dosing pump, and automatically adjust the addition of acid and alkali solutions to control the pH value within a certain range.
Data output
The APX1-C1Z model Ph Orp Controller has a current output of 0/4-20mA, which can output pH value or ORP value. In addition, this model also comes with 1-channel RS485 digital communication, which is not affected by distance and the output is stable and accurate.
Display rich
The pH controller has a 3.2-inch LCD display with selectable screen display content and the status of relays, currents, etc. can be viewed.
Specification of online pH ORP Meter
| Measuring Range | pH:0~14pH ORP:-2000~2000mV Temp.:-10~150℃ |
| Resolution | pH:0.01pH ORP:1mV Temp.:0.1℃ |
| Temp. Compensation | automatic (PT1000/NTC10K) or manual |
| Accuracy | 0.1% FS or pH: ± 0.02pH, ORP: ±2mV, take the larger one |
| Stability | 0.05% FS every 24 hours, no accumulation |
| Repeatability | 0.1% better than measuring range |
| Display Screen | 3.2 inch LCD screen |
| Calibration Method | pH: 3 points; ORP: 2 ponits |
| Relay Output | 2 SPST relays,max. load 3A/250VAC |
| Current Output | A 0/4~20mA |
| Digital Output | RS485 |
| Protection Grade | IP66 |
| Working Temperature | 0~60°C |
| Dimension | 100*100*120mm |
| Material | enhanced ABS |
| Installation Method | panel, hole size:92*92mm |
It is very necessary to use online pH controllers in water plants. Monitoring the pH value of raw water helps adjust the dosage of chemical agents to achieve the best water quality treatment effect. In the activated carbon filter, continuous monitoring of pH value can control the filter effect to prevent the adsorption capacity of the activated carbon filter and the stability of water quality from being affected by the pH value. In the secondary disinfection process, monitoring the pH value can control the disinfection effect. Finally, in the water discharge process, it is necessary to monitor the pH value of the factory water to ensure that the water quality meets the requirements.
Delfino has been focusing on the R&D and production of water quality analysis instruments for more than ten years. Our main products include PH ORP Analyzer, Conductivity Analyzer, Turbidity Analyzer, Cod Analyzer, Dissolved Oxygen Analyzer, ammonium analyzer, chlorine analyzer, etc. If you are interested in our products, please contact us.
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