Composite Reference Tube

A Composite reference tube is a highly integrated corrosion monitoring sensor. It combines a long-life reference electrode and a polarization coupon (i.e., auxiliary electrode) into a single structure. Its core function is the in-situ, synchronous, and precise measurement of the "polarization potential" of buried or submerged metallic structures, which is the most direct and critical parameter for evaluating cathodic protection effectiveness.

KEY FEATURES

• Extremely High Measurement Accuracy
• Authentic & Reliable Data
• Simple Installation
• Real-Time Dynamic Monitoring

SPECIFICATIONS

• Enclosure Material:PVC
• Enclosure Dimensions:Φ200×1600mm length
• Potential Measurement Accuracy:±2mV
• Polarization Current Range:1μA ~ 10mA
• Instant-Off Measurement Time:< 1 millisecond
• Integrated Ref. Electrode:Cu/CuSO4
• Coupon Material:Carbon Steel (Q235, X20,X70, etc.)
• Coupon Size:1.0mm²(AC coupon),6.5mm²(Polarization coupon),10mm²(Natural coupon)
• Operating Temp. Range:-20°C to 60°C

APPLICATIONS

• Precise Commissioning & Acceptance of CP Systems
• High-Resistivity Soils or Complex Interference Environments
• Coating Quality Assessment
• Academic Research & Standard Validation