This electrochemical calcium ion sensor utilizes membrane potential technology to precisely measure ion activity and concentration in drinking water solutions. The sensor generates a membrane potential directly proportional to calcium ion activity when contacting the target solution, serving as a reliable indicator electrode for potentiometric measurement applications.

• Digital sensor with RS-485 output supporting MODBUS protocol
• Reagent-free operation eliminates pollution and reduces operational costs
• Ion-selective method ensures faster response times and stable signal output
• PP electrode housing withstands temperatures from 0°C to 50°C
• High-quality four-core shielded cable for accurate signal transmission

• Remove protective cap from electrode tip, avoiding contact with sensitive area
• Shake electrode downward to eliminate internal air bubbles
• Activate new or long-unused electrodes by soaking in 1 ppm standard solution for minimum 24 hours
• After activation, rinse with deionized water and gently blot dry
• Before testing, immerse electrode tip in deionized water for 5 minutes with stirring

• Connect electrode to meter and set to mV mode
• Prepare 100 mL deionized water in 150 mL beaker with thorough stirring
• Add 1 mL of 1000 ppm standard solution, record stable reading (E₁)
• Add 10 mL of same standard solution, record stable reading (E₂)
• Calculate slope at 25°C as E₂ - E₁ to validate electrode performance

If slope deviates from specified range, prepare freshly diluted standard solution and soak electrode for 10 minutes before retesting. Contact technical support if issues persist.

• Short-term: Preserve in deionized water or 1 ppm standard solution
• Long-term: Rinse with deionized water, wipe membrane, dry thoroughly, and store in original packaging
• Reactivation requires 2+ hours in 1 mg/L standard solution before reuse