Support Ground pH Sensor Online PH ORP Controller for Power Plant
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:
| Product Name | PH ORP controller |
| Product Model | APX1-G2 |
| PH Range | 0~14pH |
| ORP Range | ± 2000mV |
| Temperature Range | -10～150℃ /14~302℉ |
| Resolution | 0.01pH / 1mV/ 0.1℃ |
| Accuracy | PH:±0.02 pH /ORP:±2 mV |
| The solution is grounded | Differential grounding eliminates partial solution leakage interference |
| Stability | 0.05% of the measurement range per 24 hours, no accumulation |
| Temp Compensation | NTC10K/PT1000 automatic selection or 25°C conversion manual selection |
| Sensor Diagnosis | Screen image display |
| Analog Current Output | 2 channel 0/4~20mA,load 1000 ohms,and support long-term calibration |
| Relay Control | 2 configurable SPST relays with a maximum load of 3A/250VAC |
| Digital communication | 1 two-wire RS485 communication interface; MODBUS RTU |
| Screen Display | 128*64 3.2-inch large graphic dot matrix LCD |
| Calibration method | pH: 3-point double-slope calibration, calibration point can be set freely (ORP: 2-point calibration); pH: 5 points multi-slope calibration, calibration points can be set freely (ORP: 2 points calibration); Field comparison for deviation correction calibration |
| Operating Environment | 0～60℃, RH＜ 95% |
| Storage Environment | -20～70℃, RH ＜ 55% |
| Power Supply | AC: 100~240V 50/60Hz or DC:18~36V |
| Power Consumption | 3 W |
| Shell Material | Enhanced ABS |
| Size | 100×100×120 mm(hole size 92*92mm) |
| Weight | 500g |
| Mounting Method | Panel installation |
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:
Acid and base (pH) regulation is to stabilize the PH value of the process medium in the required range to meet the needs of the process, in the electroplating process of electroplating bath pH control, metallurgical flotation process of pulp PH control, chemical process of the process medium mother liquor pH control. In the water treatment process, the pH value of the treated water will greatly affect the use effect of various chemicals, and different kinds of wastewater may not be allowed to discharge in the pH range after the completion of various treatments.
If you are interested in the product PH ORP controller APX1-G2, please contact us.
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