FLEXIBLE SENSOR GRT1120W-VP

The GRT1120W-VP pH sensor is a versatile adapter for complex viscous working conditions! When dealing with high viscosity suspensions, emulsions, and protein containing liquids, are there often problems such as interface blockage, mismatched interfaces, and inaccurate temperature compensation? Ordinary electrodes either have poor adaptability or frequent maintenance, and the cost of replacing imported electrodes is too high. It has dual interfaces, multiple lengths, and dual sheaths. It also supports customized thermistors, which are matched with anti blocking ceramic core liquid interface and patchless gel dielectrics. It easily covers the needs of environmental protection, chemical industry, electroplating and other industries, making the measurement of complex media stable and easy.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • It adopts gel dielectric and two-point ceramic core liquid interface, double salt bridge reference structure, and can be directly used in industrial processes with high viscosity suspension, emulsion, protein and other liquid parts that are easy to block;
  • No need to supplement dielectric, low maintenance required;
  • Adopting PG13.5 threaded socket, it can be used for electrode exchange abroad;
  • Sensor lengths of 120, 150, 200, 250, and 300mm can be selected as needed;
  • Used in conjunction with PVC sheath or PP sheath

Specifications

ParameterValue
pH Range0-14
Temperature Range0-60℃
Pressure Range0-0.3 M Pa
Zero potential7±0.5
Theoretical percentage slope≥ 95%
Thermistor PT1000 (customizable: PT100/10K/PT1000/30K/2.252K)

Core product advantages

Dual interface universal: VP6 connector+PG13.5 thread dual configuration, can be directly exchanged with foreign sensors, suitable for more equipment types

Anti blocking and non jamming: Two point ceramic core liquid interface, designed for viscous media and suspended particles, not easy to block, long-term online worry free

Maintenance free and easy: 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

Multi dimensional adaptation: 120/150/200/250/300mm with multiple lengths to choose from, PVC/PP dual sheath matching, suitable for different installation scenarios

Temperature compensation can be customized: default PT1000 thermistor, supports customization of various specifications such as PT100/10K, temperature compensation is more accurate

Boundless application: compatible with multiple industries such as sewage treatment, electroplating and chromium removal, chemical production, etc., suitable for various viscous and complex media

Accurately adapting to the scene

Environmental wastewater monitoring: online pH monitoring of industrial wastewater and biochemical treatment wastewater, anti blocking design to deal with suspended impurities in water, dual interface adaptation to different monitoring equipment;

Processing of viscous media: pH control in the production process of pulp, starch, sugar, mud, etc., anti sticking properties to avoid medium adhesion and ensure continuous measurement;

Application in the electroplating industry: monitoring of plating solution, online monitoring of chromium removal process, resistance to corrosion by plating solution impurities, optional dual sheath to adapt to different plating solution environments;

Multi scenario adaptation in chemical industry: measurement of complex media in industries such as chemical drugs, dyes, and mining, dual interface+multi degree combination, adapting to different installation requirements such as pipelines and 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 sensor wire and the sensor 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 sensor 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 sensors.

Sensor diagram illustration

120MM 53MM
  1. After opening the packaging, check whether there is mechanical damage to the sensitive bulb and electrode body of the electrode;
  2. 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;
  3. Select the corresponding sensor sleeve or cable head for installation according to different electrodes;
  4. 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

The dual interface (VP6+PG13.5) can adapt to a wider range of acidity meters and monitoring devices, without the need to purchase additional adapters due to interface mismatch; At the same time, it supports direct exchange with foreign electrodes, whether it is replacing the single interface electrode of old equipment or docking with different brands of monitoring instruments, it can be directly used, greatly improving adaptability and universality, and reducing equipment replacement costs.

There are three main reasons: First, the thermistor’s specs don’t match those of the device. For example, the device supports PT100 while the electrode is PT1000. The second problem is that the temperature wire is not wired correctly or is not making good contact. The third problem is that the device has not turned on the “automatic temperature compensation” feature. Answer: Make sure the thermistor parameters match, double-check the wiring of the temperature wire, turn on the device’s automatic temperature adjustment mode, and if needed, get in touch with technical staff to tailor the specifications.

The purpose of a thermistor is to make sure that the temperature is always right. varied devices have varied requirements for thermistors, and custom functions can make sure that the electrode works with the device correctly, so there are no measurement errors caused by temperature compensation that doesn’t work. For instance, some older monitoring equipment only work with PT100, while other chemical situations need 10K requirements. Customization can fix the main problem of “inaccurate temperature compensation” and make the data more trustworthy.

You can clean regular viscous liquids once a week. If the medium contains a lot of protein and doesn’t flow well (like thick mud), you should clean it every 4–5 days. If you don’t clean the electrode on time, proteins might clump together at the liquid interface, block ion conduction channels, causing readings to be delayed, and in extreme circumstances, the electrode can’t be calibrated, which shortens its life. So, the frequency of cleaning needs to be changed based on the medium’s properties.

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The GRT1120W-VP pH electrode breaks the measurement limitations of complex viscous conditions with its core advantages of dual interfaces, multiple adaptability, and high stability. From interface to length, from sheath to temperature compensation, it fully meets the adaptation needs of different devices and scenarios, saving the trouble of supplementing dielectrics and solving the problem of high cost of replacing imported electrodes. Whether it is continuous monitoring of sewage treatment or precise control of chemical production, it can stably output reliable data.

Consultation now provides exclusive selection suggestions, customized temperature compensation solutions, and detailed installation guidance, allowing complex media pH measurement to overcome adaptation difficulties and helping production processes operate efficiently and quality control to be accurately implemented!

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