Industrial differential pH/ORP electrode GRT1020PD is designed for acidic, alkaline, and organic reagents. The new design uses a three-electrode differential measurement architecture for precise ± 0.01pH measurements. The 3/4 “plastic shell model allows for salt bridge replacement, extending equipment life and making it a reliable choice for pH/ORP monitoring in chemical and pharmaceutical industries.
★★★★★
Features
Specifications
| Parameter | Value |
|---|---|
| pH Range | 0-14 pH |
| ORP Range | -1500—+1500 mV |
| Sensitivity | pH：±0.01pH ORP：±0.5mV |
| Temperature Range | 0-60℃ |
| Pressure Range | 4 bar |
Scope of Application
- Suitable for applications in harsh environmental conditions, such as measuring acidic substances, alkaline substances, alcohol, hydrocarbons, aromatic compounds, lipids, ketones, and other chemicals.
Core strength
Differential technology, precise anti-interference
Adopting a three sensor differential measurement architecture, the pH value of the measuring sensor and the standard electrode is converted into a differential value relative to the background electrode of the third solution, which theoretically reduces the contamination of the reference electrode connection, eliminates the problem of closed-loop circulation, and reduces the failure time and maintenance frequency by 50%. It can still maintain a measurement accuracy of ± 0.01 pH in complex media such as alcohol and hydrocarbons.
Swap salt bridge, extend lifespan
The 3/4 “plastic shell model supports salt bridge replacement, without the need to replace the sensor as a whole. When the salt bridge becomes blocked or aged, only replacement parts are needed to restore performance, greatly reducing equipment replacement costs and extending the overall service life of the electrode by more than 30%.
Operating principle
The GRT1020PD introduces a solution background electrode to construct a three sensor system, and its workflow is as follows:
- The measuring electrode directly contacts the measured medium, senses the concentration of hydrogen ions, and generates a corresponding potential;
- The standard sensor provides auxiliary stable potential as a reference anchor point for measurement;
- The real-time sensing of the background potential of the medium by the solution background sensor serves as the core benchmark for differential calculation;
- Finally, by calculating the potential difference between the measuring sensor and the standard electrode relative to the background sensor, accurate pH/ORP values are calculated.
This architecture can counteract fluctuations in the background potential of the medium, significantly enhance anti pollution and anti-interference capabilities, and ensure data reliability under harsh working conditions.
Adaptation scenario:
Monitoring the synthesis of organic reagents
Pain point: Ordinary sensor reference systems can readily get contaminated by organic substances like alcohol and aromatic chemicals, which can cause data drift.The GRT1020PD differential technology lowers reference pollution and gives real-time feedback on the acidity and alkalinity of the synthesis system with a high precision of ± 0.01pH. This makes sure that production processes stay stable.
Monitoring chemical wastewater with high acidity and alkalinity.
Problems: electroplating and metallurgical wastewater are very acidic and alkaline, which makes electrodes corrode easily and block liquid interfaces, and shortens the life of equipment. The solution is that the sensor can work with a wide range of pH levels, the replaceable salt bridge design lowers replacement costs, the output monitoring data is steady, and it fulfills environmental declaration compliance standards.
Keeping an eye on the reactions of pharmaceutical intermediates
Pain point: The synthesis system for pharmaceutical intermediates has a lot of lipids and ketone reagents, and regular electrodes don’t work right. The sensor works with a wide range of complicated chemical reagents, and differential technology makes sure that the data is correct, which is a trustworthy way to check the quality of drugs.KCL soaking solution should be prepared by using analytical grade KCL reagent and deionized water in proportion.
Sensor diagram illustration
- After opening the packaging, check whether there is mechanical damage to the sensitive bulb and electrode body of the sensor;
- Remove the sensor protective cover and check if there are any bubbles in the sensitive bulb of the electrode. If so, gently shake the electrode 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.
Technical Support
5 Best carbon monoxide detector for garage
10 Best carbon monoxide monitor for industrial use 2025
7+ Best Recommended Carbon Monoxide Detector for Industrial Use
pH In Water: Importance & Buying Guide
6 Types of Industrial Oxygen Sensors
6 Best Industrial Gas Detector Manufacturers in the World
Are you still troubled by frequent electrode failures and data distortion in complex chemical media? The GRT1020PD differential pH/ORP sensor, with its three electrode precise measurement architecture and user-friendly design of replaceable salt bridges, not only solves the monitoring problems of organic reagents and high acidity and alkalinity media, but also helps you cut over 60% of sensor replacement costs.
Request a Quote
Related Products
