100~240V 4-20mA RS485 Online pH Controller With Automatic Dosing Control For Water

100~240V 4-20mA RS485 Online pH controller with Automatic Dosing Control for water

The APX1-G2 pH/ORP controller from Dreifenol connects to a variety of conventional pH/T or ORP combination sensors. The APX series of industrial on-line pH/ORP controllers not only meet the continuous measurement and display function, but also achieve signal output and control functions. There are a variety of output configurations to choose from to meet the different needs of low cost and high performance.

Advantages of pH/ORP controller:

• pH glass electrode measurement method
• Two configurable SPST multifunction relays
• With 2 high-precision 0/4-20mA current output
• 3.2 inch LCD screen, rich content
• 1 two-wire RS485 communication interface
• Support solution grounding, which can eliminate part of the solution leakage interference
• AC and DC power modes, both wide voltage
• Housing material reinforced ABS, protection class IP66

pH ORP controller Parameters:

Temperature conversion:

Temperature conversion refers to converting the current measured pH value to the value when the temperature is 25℃. (Assuming that all other things are constant and only the temperature changes, the pH value required by many standards generally refers to the pH value at 25°C. As we said above, the pH value measured by our pH meter is the pH value at the current temperature, which will be deviated from the pH value at 25°C. The temperature coefficients of different solutions also differ greatly. Pure water is about 0.015pH/C, and the temperature coefficient of trace (mg/L grade) contaminated pure water rises to about 0.033pH/C. So in strict cases, you have to convert 25°C.

pH ORP controller Applications:

    In real life production, the control of pH value (pH) is a very important process. At the same time, with the strengthening of human awareness of environmental protection, the national requirements for environmental protection are becoming higher and higher, more and more attention, the control of wastewater discharge in the process of industrial production is more and more strict, a variety of biochemical indicators are included in the supervision, pH value is one of the very important indicators; If the pH value is too acidic or too alkaline discharged into the rivers, lakes and seas, it will cause irreversible impact on the water body and water ecology. The traditional manual pH value monitoring will gradually be replaced by automatic control because of the time and power consumption, and the control precision cannot be guaranteed. At the same time automatic control because of the use of high precision, long life pH meter to measure the pH value, so the control accuracy will reach a new height, conducive to pharmaceutical, chemical, electroplating and other factories in the production monitoring.

If you are interested in the product PH ORP controller APX1-G2, please contact us.