ON/OFF control

• Upper and lower limits setting range: 0.00 pH to 14.00 pH
• Control width: 0.00 pH to 4.00 pH (±0.00 pH to ±2.00 pH)
  Time-division proportional control
• Upper and lower limits setting range: 0.00 pH to 14.00 pH
• Proportional band: 0.00 pH to 4.00 pH
• Cycle time: 5 s to 300 s
• Control output shift capability: 0% to 50% of shift volume for the cycle time
• Self-extending cycle time capability: The cycle time is extended automatically when the deviation value enters a set range (F zone) in proportion to the deviation value (This feature has no effect when the shift function has been enabled).
• F zone: 1% to 100% of the proportional band (Self-extension of the cycle time starts working when the deviation enters the above range).
• Upper limit for extending the cycle time: 0 s to 300 s.
• Maximum control volume: 50% to 100% (To be applied regardless of whether the measured value is in the proportional band or not).

• Previous value hold
• Optional value hold
• Continuous
  Selectable from the above (However, only the previous value hold is available in the maintenance mode).

• Calibration function
  Asymmetry potential error, sensitivity error, response speed error and standard solution error.
• Electrode self-diagnosis
  Temperature sensor short-circuit and temperature sensor disconnection.
• Outside of the measuring range.
• Converter error.

Selectable from compensation ON (350Ω (25℃), 500Ω (25℃),1 kΩ (0℃),6.8 kΩ (25℃) and 10 kΩ (25℃)) and compensation OFF.