Introduction: Soil corrosion rate measuring instrument using four-electrode probe, the use of relatively low measurement voltage, accurate determination of soil resistivity, high pressure measurement to avoid reading difficulties and soil electrolysis caused by physical and chemical properties of damage, suitable for assessment of corrosion of concrete, oil transportation , Buried gas pipeline, the evaluation of corrosion outside the city buried pipeline, corrosive media corrosion assessment of aqueous solution. Features: The combination of five electrode rings of the same material into a combined electrochemical probe effectively reduced the influence of IR drop on the soil medium when measuring the corrosion current density. Among them, the CE electrode (WE) and the reference electrode (RE) (CE-WE-RE), the combined electrochemical probe connection is (1-5, 2-4, 3). The area of the research electrode (WE) and the reference electrode (RE) is 5 cm 2; Using four-electrode probe, using relatively low measurement voltage, accurate determination of soil resistivity, to avoid readings caused by high-pressure measurement difficulties and physical and chemical degradation caused by soil electrolysis; Using standard platinum electrode, copper sulfate electrode is used to measure soil redox potential; In the probe PTFE insulated rods fixed high-precision temperature measurement device to measure soil temperature; Using the pre-hole method, the damage to the original structure of the soil during the measurement is small and no excavation is required. Front tapered design to ensure good contact between the probe and the soil; The probe can be reused by grinding. Technical Parameters: Soil temperature measurement range: minus 10 ℃ to 100 ℃, error: 2 ℃ Soil redox potential measurement range: ± 2000mV, error: ≤ 1% Soil resistivity measurement range: 0 to 10KΩ • m, error: ≤ 2% Soil polarization resistance measurement range: 40Ω to 300KΩ, error: ≤ 3% Soil erosion rate measurement range: 1 × 10-4 to 2 mm / a Temperature: 0 ° C to 40 ° C Relative humidity: ≤ 80% RH】 Battery charging time 6 hours, charging can work normally. After a charge of sustainable work 24 hours
Introduction: Soil corrosion rate measuring instrument using four-electrode probe, the use of relatively low measurement voltage, accurate determination of soil resistivity, high pressure measurement to avoid reading difficulties and soil electrolysis caused by physical and chemical properties of damage, suitable for assessment of corrosion of concrete, oil transportation , Buried gas pipeline, the evaluation of corrosion outside the city buried pipeline, corrosive media corrosion assessment of aqueous solution.
