DURASHIELD pH ELECTRODE GRT1120D

The GRT1120D pH electrode gives very accurate information about how to monitor the pH of thick suspensions, emulsions, and liquids with proteins in a number of industrial settings, such as wastewater treatment, chemical synthesis, electroplating, and pulp and starch manufacture. Ordinary electrodes generally have data drift and slow reaction because the medium is blocked, and they need to have their electrolytes replaced regularly, which not only raises the expenses of running and maintaining them, but also could make the production process less stable, which is a key requirement. It is now a reliable way to measure pH under difficult working situations because of its novel structural design and industrial-grade stability performance.

★★★★★

  • 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;
  • Electrode 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%

Core product advantages

Anti blocking and anti drift:

double salt bridge reference+gel electrolyte+two-point ceramic core fluid interface, directly hit the high viscosity pain points easy to block, to ensure data stability

Maintenance free and worry free:

No need to replenish electrolytes, significantly reducing maintenance and labor costs

Universal compatibility:

PG13.5 threaded interface, interchangeable with imported equipment, no need to modify existing devices

Flexible installation:

120/150/200/250/300mm available in multiple lengths, compatible with 316L stainless steel or PVC sheath

Accurately adapting to the scene

  • Environmental protection field: online monitoring of biochemical and sedimentaEnvironmental protection field: online monitoring of sewage treatment, full process control of chromium removal in the electroplating industry, tolerance to slag containing sewage, corrosion and blockage of electroplating solution
  • Chemical industry: production processes of chemical drugs, dyes, pigments, mining, pulp mills, starch, sugar materials, etc., suitable for high viscosity suspensions
  • Special working conditions: pH measurement of viscous liquids such as proteins and emulsions to avoid rapid failure of ordinary electrodes
Chemical wastewater

Usage and Maintenance Guide

To maximize the performance and extend the lifespan of GRT1120DW, it is important to pay attention to these practical points:

  • 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

  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 electrode. 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 electrode can function at pressures from 0 to 0.3 MPa and temperatures from 0 to 60 degrees Celsius, which is normal for use in businesses. If the temperature is over 60 °C or the pressure is above 0.3 MPa, it is not safe to use it directly. This will make the glass film age faster and break down its internal structure. This could lead to data shift or electrode failure. You need to put it in a special cooling jacket or pressure-reducing device before it can be used.

The core advantage is “maintenance free” – gel electrolyte is pre charged before leaving the factory, which does not need to be supplemented or replaced. The amount of maintenance is greatly reduced, and the risk of liquid electrolyte leakage can be avoided, especially in the case of few on-site operation and maintenance personnel. The disadvantage is that compared to liquid electrolyte electrodes, the response speed is slightly slower (normal response time ≤ 60 seconds) and the theoretical lifespan is slightly shorter (1-2 years), but combined with its anti blocking design, it can fully meet the needs of high viscosity and easy to block scenarios.

Absolutely, it is a possibility. This electrode utilizes the exclusive design of a double salt bridge reference, a gel electrolyte, and a two-point ceramic core liquid interface. This design was developed specifically for high viscosity suspensions, emulsions, protein-containing liquids, and other liquids that are readily obstructed. It is possible to use it without any further treatment, and unlike regular electrodes, it will not become blocked or slow in reaction due to the adhesion of the medium between the electrodes.

There is no need to worry about short-term use. The double salt bridge structure can reduce the toxic effects of heavy metals on the reference system, but it is not recommended to soak it directly in high concentration heavy metal wastewater for a long time. If the medium contains high concentrations of heavy metals, it is recommended to install a pre filter to reduce the concentration of toxic substances, while shortening the cleaning and calibration cycle to avoid damage to the electrode active layer and extend its service life.

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Whether replacing frequently clogged old electrodes or adapting complex media monitoring to new production lines, the GRT1120D pH electrode can help you reduce operation and maintenance costs and stabilize production data with its core advantages of “anti clogging durability, maintenance free, and high compatibility”. By consulting now, you can obtain exclusive selection solutions and unlock the efficient experience of “one-time selection, long-term worry free” for industrial pH monitoring, solving monitoring problems in complex working conditions!

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