The GRT1130W pH electrode is a “stable carrier” for high viscosity and easily clogged working conditions! Whether dealing with viscous liquids containing proteins, highly viscous suspensions, or emulsions, ordinary electrodes always face problems such as interface blockage, complex maintenance, and difficult adaptation. Replacing imported electrodes is also costly. It is equipped with solid gel dielectrics and two-point ceramic core liquid interface, free of repairing dielectrics and also anti blocking, with multiple length selection and dual sheath adaptation, supporting foreign electrode exchange, easily covering the needs of environmental protection, chemical industry, electroplating and other industries, making the measurement of complex media stable and easy.
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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% |
| Thermistor | PT1000 (customizable: PT100/10K/PT1000/30K/2.252K) |
Core product advantages
More durable anti blocking: two-point ceramic core liquid interface+solid gel dielectric, double protection, not easy to be blocked by viscous substances, suspended particles, and more guaranteed service life
Maintenance free and worry free: solid gel dielectrics are pre filled and formed, and there is no need to supplement the whole process, greatly reducing the on-site operation and maintenance workload
Flexible adaptability: Available in multiple lengths of 120/150/200/250/300mm, paired with stainless steel/PP double sleeves, suitable for different installation scenarios and media characteristics
Universal and easy to replace: standard PG13.5 threaded socket, can be directly exchanged with foreign electrodes, replacing old equipment without additional modification
Installation without pressure: compatible with pipeline and container installation, clear wiring specifications, and quick access for on-site personnel
Wide scene coverage: Suitable for multiple industries such as sewage treatment, electroplating and chromium removal, chemical production, etc., to deal with various viscous and complex media
Accurately adapting to the scene
- Online monitoring of sewage treatment: continuous pH monitoring of industrial wastewater and biochemical treatment wastewater, anti blocking design to deal with suspended impurities in water, and dual protective sleeves suitable for different corrosive environments;
- Viscous medium production: pH measurement of viscous liquids such as pulp, starch, slurry and sugar, solid gel+ceramic core combination, to avoid media adhesion and blockage;
- Application in the electroplating industry: monitoring of plating solution, online monitoring of chromium removal process, stainless steel sheath resistant to plating solution corrosion, ensuring stable process parameters;
- Multi scenario adaptation in chemical industry: Measurement of complex media in industries such as chemical drugs, dyes, and mining, combined with multiple lengths and double sheaths, suitable for different installation requirements such as pipelines and deep containers;

Usage and Maintenance Guide
Installation key points
- Open box inspection: Confirm that the electrode sensitive bulb has no mechanical damage or bubbles. If there are bubbles, they can be removed by gently shaking vertically; Select the corresponding length of electrode according to installation requirements;
- Sheath matching: Choose 316L stainless steel sheath (strong corrosive medium) or PVC sheath (conventional medium) according to the characteristics of the medium to ensure compatibility;
- Interface installation: Fixed with PG13.5 threaded interface, can be paired with protective sleeve or cable head, choose pipeline or container installation method, tighten and fix to avoid shaking;
- Waterproof protection: If the connection between the electrode wire and the electrode is not waterproof, it needs to be sealed with sealant, waterproof joint or heat shrink tubing to prevent the invasion of medium or water vapor;
Maintain
- Daily cleaning: Rinse the electrode with distilled water and dry the filter paper before and after measuring. This will keep dirt and other things from entering into the measured medium. Once a week, clean the liquid interface to keep everything working well.
- Idle storage: After washing, cover it with a 3.3mol/L KCL solution and preserve it in a dry, well-ventilated spot so the delicate bubbles don’t dry out.
- Sediment treatment: Soak the glass film in weak hydrochloric acid for 5 to 10 minutes, then rinse it off if it looks foggy or glued together. Don’t scratch the delicate film with a brush that has strong bristles;
- Calibration cycle:It is best to calibrate the instrument once a week, especially when it is used in strong acids or thick liquids, to make sure the measurements are correct. Stick to the calibration frequency; don’t linger in distilled water, protein solutions, or acidic chloride solutions for too long, and don’t touch organic silicone oils because they could damage the electrodes.
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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GRT1130W pH electrode is a reliable choice for complex and viscous working conditions due to the stability and durability of solid gel dielectrics and the flexible adaptation of double sheath+multiple lengths. Whether it is continuous monitoring of sewage treatment, precise control of chemical production, or cost-effective replacement of imported electrodes, it can meet the core requirements of anti blocking, maintenance free, and wide adaptability, and stably output accurate data.
By consulting now, you can obtain exclusive selection solutions, detailed installation tutorials, and one-on-one technical support. We will provide you with full support throughout the process, making pH measurement in complex working conditions more worry free and efficient, and helping the production process run smoothly with precise quality control!
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