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Online PH/ ORP Controller With Differential Signaling Solution Grounding 5-Point Calibration For Power Plant
pH controller APX1-G2 is an instrument used to measure, monitor and automatically adjust the pH value of liquids. It is commonly used in a variety of industrial processes and laboratory applications to ensure that the pH of liquids is within the required range. The pH transmitter APX1-G2 has a differential signal, supports solution grounding, and can eliminate some solution leakage interference." This description refers to a specially designed pH transmitter with the following key functions:
Differential Signal: This pH transmitter uses differential signal measurement technology. In pH measurements, differential signaling is usually achieved by simultaneously measuring the potential difference between a working electrode and a reference electrode. This helps reduce the impact of external interference because differential measurements eliminate common-mode noise, improving measurement accuracy.
Supports solution grounding: This means that the pH transmitter can have an effective ground connection to the solution. In some cases, solutions may contain electrical charges or conductive substances that may cause electrical or inductive interference if not properly grounded. A pH transmitter that supports solution grounding ensures a good electrical connection and helps reduce the effects of electrical interference.
Eliminate partial solution leakage interference: This is a function for specific problems. Some solutions may carry a weak current or leakage, which may interfere with pH measurements. This pH transmitter is equipped with features that partially offset or suppress this leakage interference to ensure accurate pH measurements.
The pH transmitter APX1-G2 produced by Daruifuno is designed to provide more accurate and stable pH measurement in a variety of applications by using differential signal measurement technology and supporting solution grounding, as well as coping with solution leakage interference under specific circumstances. Reliable pH data, especially suitable for environments with high requirements for pH measurement accuracy, electrical interference and leakage interference.
Specification:
| Model | APX1-C2 | APX1-G2 | ||
| Principle | PH | Glass pH electrode (hydrogen ion concentration index) | ||
| ORP | Platinum or gold electrodes (redox potential) | |||
| Display Range | PH | 0~14pH | ||
| ORP | ± 2000mV | |||
| Temp | -10～150℃ | |||
| Solution Ground | N/A | differential ground | ||
| Resolution | pH: 0.01pH ORP: 1mV TEMP: 0.1℃ | |||
| Accuracy | 0.1% of the measuring range or ±0.02pH / ±2mV, take the larger one | |||
| Stability | 0.05% of measuring range every 24 hours without accumulation | |||
| Repeatability | Better than 0.1% of measuring range | |||
| Temp Compensation | Automatic or manual (NTC10K/PT1000) | Automatic or manual (NTC10K/PT1000) Converted at 25°C | ||
| Relay Output | Two SPST relays, Max. load 3A/250VAC, set high/low alarm, temp or clean control | |||
| Digital Communication | A two-wire RS485, Modbus, JSON | |||
| Current Output | Two 0/4~20mA current Max. load 1000Ω | |||
| Language | English | English and Chinese | ||
| Display | 128*64 3.2-inch graphic dot matrix LCD | |||
| Calibration Method | PH: 3 points; ORP: 2 points | PH: 3 points; ORP: 2 points PH: 5 points multi-slope calibration | ||
| Protection Grade | IP66 | |||
| Enclosure Material | Enhanced ABS | |||
| Power Supply | AC: 100~240V or DC:18~36V, 50/60Hz | |||
| Dimension | 100*100*120mm (Hole size 92*92mm) | |||
| Electrical Interface | Reserve three M12*1.5 glan heads, the wire diameter is 3~6.5mm | |||
| Work Temperature | 0～60℃, RH<95%, non-condensing | |||
| Storage Temperature | -20～70℃, RH<55%, non-condensing | |||
| Installation | Panel | |||
| Weight | 450g | |||
| Power Consumption | Max. 3W | |||
Brief introduction:
Two SPST relays to set high and low alarms and control dosing
A 0/4~20mA current Max. load 1000Ω
Application:
pH transmitters with differential signals and supporting solution ground are typically used in the following types of environments:
Chemical Industry: In chemical production, precise control of pH value is crucial to the success of the reaction process and the assurance of product quality. pH transmitters with differential signals and support for solution grounding can provide high-precision pH measurement in chemical processes to ensure the stability and safety of the production process.
Pharmaceutical Industry: The pharmaceutical industry requires strict quality control, including pH control in pharmaceutical production. This type of pH transmitter can be used to ensure that the pH of pharmaceuticals is within specified ranges to maintain product quality and consistency.
Food and Beverage Production: In the food and beverage industry, pH has a significant impact on the taste, quality and stability of food products. pH transmitters with differential signaling and solution grounding can be used to monitor and regulate the acidity and alkalinity of food and beverages.
Environmental monitoring: In environmental monitoring, especially in water quality monitoring and wastewater treatment, the measurement of pH value is crucial to ensure the quality of water bodies and environmental protection. pH transmitters that support solution grounding can be used to accurately monitor and control the pH of water.
Laboratory Research: In scientific research laboratories, pH measurements often require high accuracy. pH transmitters with differential signal and solution grounding functions can provide reliable pH measurement data in scientific research experiments.
Electrochemical research: In electrochemical experiments and research, pH transmitters usually need to support differential measurement to reduce interference between electrodes, and support solution grounding to ensure accurate potential measurement.
In summary, pH transmitters with differential signaling and solution grounding support are suitable for a variety of industrial, laboratory and environmental applications that require high-precision pH measurement and may have electrical interference and solution potential leakage issues. These features help improve the accuracy and stability of pH measurements.
