Integrated pH Measurement for Automatic Calculation of Free Chlorine at Changing pH Levels

• Wide measuring range:0.01 to 5.00 ppm.
• Low drift: < 1% during 1 month.
• Fast response: 90% of change within 60 seconds.
• Maintenance-free self-cleaning 3-electrode-system.
• Monitoring of sample flow and cleaning efficiency.
• Automatic compensation of sample pH (on-line or off-line).
• 'Built-in PID controllers as relays or continuous mA output.
• Fieldbus interface including Profibus DP and Modbus protocols
• Complete panel mounted system; tested, calibrated and ready for operation.