STABLE CORE SENSOR GRT1110-AS7

GRT1110-AS7 pH sensor relies on core designs such as gel electrolyte and anti pollution ring junction to accurately solve the monitoring pain points under severe working conditions, reducing the problems that traditional pH electrodes often face in complex measurement scenarios such as industrial sewage and colloidal media, such as clogging, electrode poisoning, and the need for frequent electrolyte supplementation. Provide convenient, durable, and stable solutions for pH measurement in industrial processes.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • With gel electrolyte, the electrode can withstand voltage up to 0.3Mpa without back pressure;
  • Easy to use, no need to replenish electrolytes;
  • Gel electrolyte salt bridge can effectively prevent sensor poisoning
  • Adopting anti pollution circular polytetrafluoroethylene interface, it is not easy to block and can be detected online for a long time;
  • Special material sensor sensitive membrane, used for pH measurement under various conditions;
  • Low sensor internal resistance, fast response, and good stability;
  • Adopting standard PG13.5 thread, suitable for pipeline installation and matching with electrode casing.

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

Maintenance free and worry free design: gel electrolyte does not need to be supplemented, reducing on-site operation and maintenance workload

Anti poisoning and anti pollution: Salt bridge can prevent S ² ⁻, CN ⁻ plasma poisoning, and the ring PTFE interface is not easily blocked

Stable and excellent performance: low internal resistance, fast response, zero potential of 7 ± 0.5mV, theoretical percentage slope ≥ 95%

Widely applicable scenarios: sensitive films made of special materials, suitable for various complex media such as colloids and sewage

Flexible and convenient installation: standard PG13.5 thread, supports pipeline installation and sleeve matching, compatible with BNC connectors or pin terminals

Ideal Application Scenarios

Industrial wastewater treatment scenario: Suitable for pH online monitoring of various industrial wastewater and biochemical treatment wastewater, anti pollution interface is not easily blocked by suspended impurities, and resistant to complex ion corrosion in wastewater;

Colloidal medium measurement: It can accurately measure the pH value of various colloidal solutions, such as chemical colloidal raw materials, food processing colloidal systems, etc. The special sensitive membrane material avoids medium adhesion;

Conventional industrial process monitoring: suitable for routine pH measurement in industries such as chemical, electronics, and pharmaceuticals, compatible with various acidity meters, and installed flexibly to adapt to pipeline or container scenarios;

Usage and Maintenance Guide

Installation key points

  • Open box inspection: Confirm that there is no mechanical damage to the sensitive bulb and electrode body. If there are bubbles in the bulb, gently shake it vertically to remove them;
  • Interface installation: PG13.5 threaded interface is used, matched with corresponding protective sleeve or cable head, and pipeline installation method can be selected to ensure stable fixation;
  • Stripping specification: Peel off the metal wire layer, thoroughly remove the conductive black skin of the transparent central axis, and avoid signal interference;
  • Waterproof protection: If the electrode wire connection is not waterproof, it needs to be sealed with sealant, heat shrink tubing, or waterproof joints to prevent moisture;
  • Connector adaptation: Depending on the type of acidity meter interface, choose BNC standard connectors or pin type terminal blocks for docking to ensure good contact.

Maintain

  • Daily cleaning: Rinse the electrode with distilled water before and after measurement, dry the filter paper to prevent impurities from entering the measured liquid; Clean thoroughly once a week to ensure performance;
  • Idle storage: After washing, put on a protective cover containing 3.3mol/L KCL solution and store in a dry and ventilated place to prevent sensitive bubbles from drying out;
  • Sediment treatment: When the glass film appears semi transparent or deposited, wash it with dilute hydrochloric acid and then rinse it with distilled water to avoid scratching with a hard brush;
  • Calibration cycle: It is recommended to calibrate the instrument once a week to ensure measurement accuracy;
  • Taboo: Avoid prolonged immersion in distilled water, protein solutions, or acidic chloride solutions, and do not come into contact with organic silicone oils.

Sensor diagram illustration

  1. After opening the packaging, check whether there is mechanical damage to the sensitive bulb and sensor 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 sensors;
  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 core lies in the special design of gel electrolyte salt bridge, which can effectively isolate toxic ions such as S ² ⁻ and CN ⁻ from contact with the reference system to avoid electrode response failure caused by ion erosion. Compared with traditional liquid electrolyte electrodes, the anti poisoning ability has been greatly improved, and it is more suitable for measuring sewage or industrial media containing toxic ions.

Common reasons: deposits on sensitive membranes, insufficient activation of electrodes, low temperature or high viscosity of the measured liquid. Solution: Clean the sensitive membrane with dilute hydrochloric acid and rinse it; Soak the electrode in KCL solution and activate it for 12 hours; If the temperature of the medium is too low, it can be raised appropriately. In high viscosity media, it is necessary to patiently wait for a response (still faster than traditional electrodes); Regular calibration ensures performance.

The main factors causing shortened lifespan are long-term use under conditions of over temperature (>60 ℃) and over pressure (>0.3Mpa); Not stored as required (such as dry storage); Long term immersion in taboo solutions; Physical damage or lack of regular maintenance. Methods to extend lifespan: strictly use within the rated parameters; Soak KCL solution as required when idle; Weekly cleaning and calibration; Avoid contact with prohibited media and promptly handle sediment.

It is necessary to ensure that no reverse pressure is applied and to avoid frequent fluctuations in medium pressure. During installation, it should be securely fixed with a protective sleeve to prevent pressure from impacting the electrode. Overpressure will damage the structure of gel electrolyte, resulting in electrode leakage, response failure, and even damage the sensitive bulb. It should be used strictly within the range of 0-0.3Mpa.

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Whether it is the complex working conditions of industrial wastewater or the precise measurement of colloidal media, the GRT1110-AS7 pH electrode can calmly cope with various challenges with its core advantages of anti pollution, anti poisoning, and maintenance free. The gel electrolyte eliminates the trouble of supplement, solves the plugging pain point by circular connection, and is flexibly installed by standard interface adaptation. It is a cost-effective choice for online pH monitoring in industrial processes. By consulting now, you can obtain exclusive selection solutions, detailed installation guidance, and one-on-one technical support, making pH measurement more worry free and stable under complex working conditions, helping to smooth the production process and achieve precise quality control!

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