The HF1120 pH electrode contains a special sensitive membrane and a two-point ceramic core that keeps it from getting blocked. This means that it doesn’t need any maintenance and works with a wide range of devices. It solves the problem that fluoride ions quickly break down traditional pH sensors and that the liquid junction commonly gets clogged in particularly corrosive fluids that contain hydrofluoric acid (HF), which makes the system unable to detect anything. specially made for when HF is present, providing accurate and steady pH level data for industries like electronics etching and fluorine chemicals.
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Features
Specifications
| Parameter | Value |
|---|---|
| pH Range | 0-14 |
| Temperature Range | 0-60℃ |
| Pressure Range | 0-0.3 M Pa |
| Zero potential | 7±0.5 |
| Theoretical percentage slope | ≥ 95% |
Scope of Application
Suitable for pH testing in media containing hydrofluoric acid.Technical specifications for HF resistance:
- pH 2 + 20° C: F < 300 ppm
- pH 3 + 20° C: F < 1000 ppm
- pH 4 + 20° C: F < 6000 ppm
- pH >5， No F concentration limit
Core product advantages
HF resistant strong corrosion:
special sensitive film formula, resistant to fluoride ion erosion, with clear fluoride ion tolerance concentration at different pH levels (F ⁻<300ppm at pH 2, etc.), avoiding rapid failure of conventional electrodes;
Blocking prevention and maintenance free:
gel dielectric+two-point ceramic core liquid interface is suitable for corrosion media containing impurities, which is not easy to block and does not need to supplement dielectric, so the maintenance amount is small;
International universal compatibility:
PG13.5 standard thread, can be directly exchanged with foreign electrodes, supports PVC/PP sheath, suitable for different corrosion scenarios and imported equipment;
Flexible selection of multiple specifications:
120/150/200/250/300mm length options are available to meet different installation depths, ensuring that the electrode bulb and liquid junction are submerged in the measured liquid simultaneously.
Accurately adapting to the scene
- Fluorine chemical production monitoring: Real time pH detection of HF containing reaction solutions and intermediates in the fluorine chemical industry, resistant to strong corrosive environments, ensuring precise control of reaction process parameters;
- Electronic etching process monitoring: pH monitoring of HF etching solution in semiconductor and circuit board production, adjusting etching process parameters to avoid abnormal pH affecting product accuracy;
- HF containing wastewater treatment: pH detection in the treatment process of industrial hydrofluoric acid containing wastewater (such as chemical and electronic industry waste liquids) to ensure acid-base neutralization meets standards and prevent strong corrosion wastewater from polluting the environment;
- Fine chemical synthesis: pH monitoring of intermediate synthesis reaction solutions containing HF in the fine chemical and pharmaceutical industries to meet the detection needs of high cleanliness and strong corrosion scenarios, ensuring product quality.
Usage and Maintenance Guide
- Before measurement, clean the sensor with distilled water and absorb the moisture to ensure that the bulb and the liquid junction are submerged in the measured liquid at the same time, avoiding impurities from entering and affecting the data;
- Soak in 3.3Mol/L KCL solution when idle, and avoid long-term immersion in distilled water, protein solution, or acidic chloride solution. Keep away from organic silicon oils and fats;
- Clean and calibrate once a week, wash the glass film sediment with dilute hydrochloric acid, and prohibit scratching the sensitive film with a hard brush;
- Strictly follow the HF concentration resistance specifications to avoid sensor damage caused by over concentration and over temperature conditions.
Sensor diagram illustration
- After opening the packaging, check whether there is mechanical damage to the sensitive bulb and electrode body of the electrode;
- Remove the sensor protective cover and check if there are any bubbles in the sensitive bulb of the electrode. If so, gently shake the sensor in a vertical plane to remove the bubbles;
- Select the corresponding sensor sleeve or cable head for installation according to different electrodes;
- The connection between the sensor wire and the sensor is not waterproof, please make sure to do a good job of waterproofing.
Wire stripping instructions
Attention
- The outer layer of the transparent central axis is covered with a conductive rubber layer and a metal mesh layer. When stripping, first strip the metal mesh layer into the metal mesh as shown in the picture, and be sure to removal of conductive black skin on the transparent central axis;
- The cable extends to the host without any contact points except for a dedicated junction box.
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The HF1120 pH electrode is the best since it doesn’t rust from HF, doesn’t get blocked, and doesn’t need any care. You can keep a close eye on the pH level of things that contain hydrofluoric acid with this. It can handle a lot of rust because its main job is very powerful. You can use it to create fluorine chemicals, clean up dirty water, and speed up technical processes. It also gives you accurate information that can assist you follow the rules about the environment and improve your processes. If you take care of and install cables the appropriate way, they will last longer and cost you less money.
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