IP68 Protection PH Sensor with Automatic Temperature Compensation for Seawater Water Quality Monitoring (0-60°C)

The PH/ORP meter is a high - precision instrument employed for detecting the pH and oxidation - reduction potential of liquids. It is constructed around a microcomputer, operating on the principle of the primary battery. This design makes it straightforward to operate and convenient to maintain. Unaffected by factors like color, turbidity, colloidal substances, oxidants, and reducing agents, it is applicable for the determination of diverse media, including clean water, wastewater, industrial water, and chemical reagents. Consequently, it finds extensive use in agriculture, environmental protection, and the industrial sector.

The sensor incorporates a composite electrode, which effectively mitigates the impact of the inconsistent "K" value. This enables long - term, stable, and accurate pH measurement. The internal structure of the sensor is depicted on the right.

PH meter is a potentiometric method to measure the PH of a solution, so the PH meter works in such a way that, in addition to measuring the PH of a solution, it can also measure the electromotive force of a battery.

The PH is the activity of hydrogen ions in a substance, and the PH is the negative of the logarithm of the concentration of hydrogen ions.The main measuring components of PH meter are glass electrode and reference electrode. Glass electrode is sensitive to PH and reference electrode has stable potential.If you put these two electrodes of the PH meter together in the same solution, you make a galvanic cell, and the potential of this galvanic cell is the algebraic sum of the potential of the glass electrode and the reference electrode.

The reference electrode potential of PH meter is stable, so in the case of temperature remains stable, the potential change of the galvanic cell composed of the solution and the electrode is only related to the potential of the glass electrode, and the potential of the glass electrode depends on the PH value of the solution to be measured, so through the measurement of the potential change, the PH value of the solution can be obtained.

• LCD display, Chinese menu operation, stable performance and strong reliability
• High-performance operational amplifier, ORP positive and negative poles are symmetrical, small drift, high accuracy
• Data is not lost after power off
• Dual 4-20mA transmission output, relay high and low alarm control output, RS485 communication Output
• Simultaneous display of PH value, temperature value, output current value, high alarm value, low alarm value

Host size

Sensor size