The GRT1320BW pH sensor is designed specifically for complex industrial scenarios, equipped with a new type of glass sensitive membrane and solid electrolyte, combined with a dual ceramic core liquid interface structure. It can not only cope with high temperature and strong alkali environments, but also easily handle high viscosity suspensions, emulsions, protein containing liquids and other easily clogged working conditions. No need for additional electrolyte supplementation, simple maintenance, meeting the monitoring needs of multiple industries such as environmental protection, chemical industry, electroplating, etc.
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Features
Specifications
| Parameter | Value |
|---|---|
| pH Range | 0-14 |
| Temperature Range | 0-130℃ |
| Pressure Range | 0-0.3 M Pa |
| Zero potential | 7±0.5 |
| Theoretical percentage slope | ≥ 95% |
Core product advantages
- Not easy to block and long-lasting: The double ceramic core liquid interface design isn’t easily blocked by proteins, thick liquids, or sediment, so it’s good for tough working conditions.
- Change the scenario: It can handle high temperatures and strong alkaline conditions, and it can consistently measure the pH of thick fluids with particles that are suspended in them.
- Easy maintenance: Solid electrolytes don’t need to be replaced very often. They only need to be cleaned and calibrated once a week, which saves money on work.
- Flexible installation: foreign electrodes can be used with dual connections, optional length, and no changes need to be made to existing equipment.
- Quick response: The new glass-sensitive film makes sure that signals, readings, and tracking are all sent quickly, correctly, and on time.
Accurately adapting to the scene
- High temperature and strong alkali occasions: various industrial production processes that require tolerance to extreme acidity, alkalinity, and high temperatures
- Environmental monitoring: online monitoring of sewage treatment, real-time monitoring of chromium removal process in electroplating industry
- Chemical industry: monitoring of production processes for chemicals, dyes, pigments, mining, pulp mills, starch, sugar, etc
- Special media: pH measurement of highly viscous suspensions, emulsions, and viscous liquids containing proteins that are prone to clogging

Usage and Maintenance Guide
- Before measurement, clean the sensor with distilled water and absorb the moisture to ensure that the sensitive bulb and the liquid junction are submerged in the measured liquid at the same time, avoiding impurities from entering and affecting the data;
- When idle, a protective cover containing 3.3Mol/L KCL soaking solution should be put on. It is strictly prohibited to soak in distilled water, protein solution, or acidic chloride solution for a long time, and keep away from organic silicone oil;
- Clean and calibrate once a week. When semi transparent deposits appear on the glass film, wash it with dilute hydrochloric acid and then rinse it with distilled water. Do not use a hard brush to scratch the sensitive film;
- After standard maintenance, if the calibration still cannot be completed, it indicates that the sensor has lost its responsiveness and needs to be replaced in a timely manner.
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 sensor. 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 sensors;
- 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 GRT1320BW pH sensor can help you reliably and accurately measure pH if you are having trouble doing so in conditions where the temperature is high, the media is thick, or there are strong bases or conditions that cause things to get clogged easily. Because it is durable, easy to maintain, and can be installed in a variety of ways, it has become an ideal tracking tool for complex industrial scenarios. Sino Inst is a company that works in the industrial sensor field. They help a lot of different industries by offering professional-quality monitoring equipment and a wide range of services.
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