Customizable Soil PH Electrode Analog PH Probe With Glass Housing
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Soil pH Electrode Analog pH Sensor >>Technical Parameter pH Range: 0-14 pH pH Zero Point: 7.00±0.25 Temperature Range: 0-80℃ Pressure Resistance: 0-0.3 MPa Temperature Sensor: None (standard), customizable options: NTC10K / PT100 / PT1000 Housing Material: Glass Membrane Resistance: <800 MΩ Reference System: Ag/AgCl Liquid Junction: Porous Ceramic Electrolyte Solution: 3.3M KCl gel Dual Salt Bridge System: Yes Connection Thread: None or customizable PG13.5 >>Overview The core theory of pH electrode measurement is the Nernst equation. The sensor used in potentiometric analysis is called a galvanic cell. A galvanic cell is a system that converts chemical reaction energy into electrical energy. The voltage of this cell is referred to as the electromotive force (EMF). This EMF consists of two half-cells. One half-cell is the measuring sensor, whose potential is related to the activity of specific ions; the other is the reference half-cell, often called the reference sensor, which is typically connected to the measurement solution and the instrument. >>Electrode Maintenance and Care ○ Before use, unscrew the protective cap and immerse the electrode bulb and liquid junction in the sample. ○ If salt crystals form near the electrode tip or inside the cap due to electrolyte evaporation, rinse with water. This indicates normal dialysis membrane function. ○ Check for air bubbles in the glass bulb by shaking the electrode vertically. ○ Keep the glass membrane hydrated for fast response. After measurement or calibration: Rinse the electrode thoroughly. Add storage solution (3 mol/L KCl) to the protective cap. ○ Ensure terminal connections remain dry. Clean with anhydrous alcohol if contaminated. ○ Avoid prolonged immersion in distilled water, protein solutions, or contact with silicone grease. ○ For aged electrodes with cloudy membranes or deposits, soak in 10% HCl, then rinse. ○ Regularly clean and calibrate the electrode. If calibration fails after maintenance, replace the electrode. >>Lifespan Under normal conditions with proper maintenance, electrodes last over 12 months. Even unused electrodes have a shelf life of 12–24 months (if stored correctly). Exposure to strong acids, bases, high temperatures, or corrosive liquids shortens lifespan. Electrodes are consumables and generally not covered by warranty. >>Electrode Calibration ○ Use fresh pH/ORP standard buffer solutions of appropriate concentrations. ○ Remove the protective cap and rinse the electrode with distilled water. ○ Set the instrument to calibration mode (refer to the instrument manual for details). ○ After calibration, measure actual samples. Cable Length: 5m or customizable Cable Connector: Pin, BNC, or customizable |
Product Tags: Customizable Soil PH Electrode Customizable Analog PH Probe Glass Housing Soil PH Electrode |
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