The GRT1090 is an electrode that measures pH levels; it may be used for water treatment in conditions of elevated temperatures and pressures. It is constructed using PC material, which indicates that it is capable of withstanding temperatures that are beyond the norm and retaining its shape. You may safely use it at temperatures ranging from 130°C and pressures as high as 0.6 MPa. Due to these characteristics, it may be utilized in a wide variety of scenarios in which detection is required under challenging circumstances. These scenarios include the manufacturing of chemicals, wastewater treatment, and systems that include hot water.
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Specifications
| Parameter | Value |
|---|---|
| Measurement Range | 0-14 pH |
| Material | PC |
| Temperature Range | 0-130℃ |
| Pressure Range | 0-0.6M Pa |
| Sheath selection | 0-3 meter submerged sheath (PVC) |
| Thread Size | 3/4 inch NPT |
| Cable length | Standard configuration of 3 meters, optional with temperature compensation |
Core strengths
Design that really resists heat (0–130 °C)
It is made of heat-resistant PC material, so it can work steadily in high temperatures for a long time without drifting or exploding. It is good for hard settings like steam water, chemical kettle bodies, hot water systems, and more.
Structure that can handle high pressure (up to 0.6 MPa)
The electrode body and sealing structure have been improved and strengthened so that they can measure steady online in high-pressure pipelines, dosing systems, and reaction tanks.
Corrosion resistant, suitable for treating mildly corrosive wastewater
Electrode materials provide a good mix of heat and corrosion resistance. They may be utilized in situations where corrosion is not too bad, such industrial wastewater, biochemical processes, and recycled water.
Universal NPT installation technique (3/4 NPT thread on both ends)
It works with a lot of different installation methods, such insertion, sinking, and piping. It can be installed in a lot of different ways and works with most electrode sheaths on the market.
Optional submerged sheath (0 to 3 meters)
Works well with PVC submerged sheath and is even better in places like deep pools, open channels, and reaction tanks.
Scope of Application
- Online monitoring of the environmental protection industry
- Lime slurry working conditions
- Online pH detection for general industrial wastewater and process water
Applicable scenarios
Monitoring Chemical Production Processes
Reaction media may be corrosive, and temperature and pressure can change during chemical reactions. The GRT1090, constructed with reinforced materials, provides a continuous and reliable pH signal even under harsh conditions, enabling operators to monitor reaction status and minimize process control failures caused by pH anomalies.


Boiler Feedwater and Steam Systems
Boilers and steam systems are typically exposed to high-temperature and high-pressure environments, placing extremely high demands on the heat resistance of pH monitoring equipment. The GRT1090 remains efficient at 130℃, allowing operators to quickly detect water quality changes and avoid corrosion and scale.
Installation and Maintenance Precautions
Installation Specifications
- You may connect straight to the device using 3/4NPT threads; no extra sheath is needed. You may use a stainless steel/PPS sheath for further protection.
- There shouldn’t be any intermediary wiring in the electrode wire. Instead, connect it directly to the main unit to make sure the signal stays strong.
Daily maintain
- Keep the sensitive membrane active by putting the electrodes in a 3.3mol/L KCl solution while you’re not using them.
- To keep impurities from compromising the accuracy of measurements, rinse the electrode surface with clean water on a frequent basis.
- You can use a standard buffer solution to recalibrate the electrodes if the measurement data drifts.
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The GRT1090 pH electrode provides a reliable online pH monitoring solution for various industries thanks to its high-temperature and high-pressure tolerance, robust structure, and wide range of applications. Whether in chemical reactions, boiler systems, or complex wastewater treatment environments, it maintains stable performance, effectively supporting production safety and process optimization.
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