Why Choose Aidon pH Meter?
- Displays pH, temperature, status, and more on the same screen
- Multiple automatic calibration functions, including automatic high- and low-point calibration
- Manual and automatic temperature compensation with real-time monitoring to prevent measurement errors
- All units undergo rigorous quality control testing before shipment
Aidon—Professional pH Meter Manufacturer
As a trusted supplier of water treatment equipment, Aidon offers pH meters that provide precise measurements and automated operation. These products are widely used in municipal water supply, wastewater treatment, chemical production, and various industrial sectors.
Aidon has over 15 years of experience in the research, development, design, and manufacturing of water treatment equipment. Every pH meter undergoes rigorous quality control testing before leaving the factory, ensuring that you can put it into use as soon as you receive it.
This Meter Is Equipped with Various Types of Electrodes
Real-Time Monitoring and Automated Control
The Aidon online pH meter continuously monitors changes in water quality, providing stable and reliable real-time data. It supports integration with automated systems, enabling remote monitoring and intelligent management.
High Versatility, Effortless Control
With multiple automatic calibration functions, various communication options, and current output, it easily adapts to installations worldwide, enabling data collection, remote management, and intelligent control.
Aidon pH Meter Suitable for?
If the chemicals you need to handle are not listed below, please contact us. We can provide you with a customized solution at no cost.
Monitor pH levels and precisely adjust chemical dosing to purify wastewater.
Resist corrosive liquids and measure the oxidation-reduction potential of reactions.
Precise bath balance control to ensure consistent electroplating quality.
Control water pH levels to create a safe environment for aquatic growth.
No, pH electrodes and ORP electrodes cannot be used interchangeably because their materials, measurement principles, and application environments are completely different.
The calibration interval for a pH electrode depends on the specific process. The more stable the process conditions (temperature, pressure, composition, absence of fouling, etc.), the more stable the pH measurement will be, and the longer the calibration interval can be. Most pH electrodes are calibrated once a week or once a month; based on experience, longer or shorter calibration intervals are also possible. To ensure accuracy, it is best to start with more frequent calibrations and then gradually extend the calibration intervals.
An industrial online pH meter is a microprocessor-based instrument for online water quality monitoring and control. This instrument is configured with different types of pH electrodes. It continuously monitors and controls the pH (acidity/alkalinity), and temperature of aqueous solutions.
Relevant Parameters of Online pH Meters
- Measurement Range (depending on the electrode): pH: -2 to 16.00 pH; Temperature: -10 to 150.0 °C;
- Resolution: pH: 0.01 pH; Temperature: 0.1 °C;
- Basic Error: pH: ±0.01 pH; Temperature: ±0.3 °C;
- Stability: pH: ≤0.02 pH/24 h.
- Current Output (1 channel standard, 2 channels optional): 0/4–20 mA (load resistance < 500 Ω); 20–4 mA (load resistance < 500 Ω);
- Communication Output: RS485 MODBUS RTU;
- Two sets of relay control contacts: 3 A 250 VAC, 3 A 30 VDC;
- Power Supply (Optional): 85–265 VAC ±10%, 50 ±1 Hz, power consumption ≤3 W; 9–36 VDC, power consumption: ≤3 W;
- Dimensions: 98 × 98 × 130 mm;
- Mounting Methods: Panel-mounted, wall-mounted; Panel cutout dimensions: 92.5 × 92.5 mm;
- Protection Rating: IP65;
- Instrument Weight: 0.5 kg;
- Operating Environment: Ambient Temperature: -10–60°C;
Relative Humidity: Not exceeding 90%;
No strong magnetic field interference in the vicinity other than the Earth’s magnetic field.
Features and Functions of the pH Meter
- Dot-matrix black-and-white LCD display
- Intelligent menu-driven operation
- Multiple automatic calibration functions
- Multiple signal output options
- Differential signal measurement mode, stable and reliable
- Manual and automatic temperature compensation
- Two sets of relay control switches
- Upper limit, lower limit, and hysteresis control
- Simultaneous on-screen display of pH, temperature, status, etc.
- Password protection to prevent accidental operation by unauthorized personnel
pH Electrode Specifications (Standard Water Quality)
- pH Range: 2–12 pH
- pH Zero Point: 7.00 ± 0.25
- Temperature Range: 0–80°C
- Pressure Rating: 0–0.3 MPa
- Temperature Sensor:
DTM31-PCDCB01: None
DTM31-PCDCB02: NTC10K/NTC2.2K/PT100/PT1000
- Housing Material: PP+GF
- Membrane Resistance: <300 MΩ
- Reference System: Ag/AgCl
- Liquid Junction: PTFE
- Connection Thread: NPT 3/4”
- Cable Length: 10 m or as specified
- Cable Connector: Pin, BNC, or as specified
How Long Does a Ph Electrode Last? How Can Its Lifespan Be Extended?
There is no fixed standard for the lifespan of a pH electrode; it depends on the brand, model, and operating environment. Generally, replacement is needed every 1–2 years, depending on frequency of use—the primary reason being that the resistance of the electrode’s glass bulb increases over time. Excessively high resistance can cause the electrode to malfunction and prevent the pH meter from calibrating properly.
To extend its service life, avoid the following: frequent use, chemical corrosion, extreme temperatures, and physical damage. It is recommended to strictly follow the user manual, perform regular calibration and maintenance, and minimize unnecessary wear and tear.