Overview

The pH / Redox (ORP) Analyzer AX460 is designed for use with glass, enamel, and antimony pH electrodes, as well as metal redox sensors, delivering exceptional accuracy and performance in measurements. This device incorporates advanced technology, making it a highly reliable and flexible option that meets a wide array of process monitoring and control applications. It is suitable for industries such as water and wastewater treatment, power, chemicals, pharmaceuticals, pulp and paper, and food and beverage.

Inputs

• One or two: pH or mV inputs and solution earth
• One or two: temperature sensors
• Connection Capability: Enables connection to glass or enamel pH and reference sensors, and Redox (ORP) sensors

Input Resistance

• Glass: >1 x 10¹³ Ω
• Reference: 1 x 10¹³ Ω

Range

• pH: –2 to 16
• mV: –1200 to +1200 mV

Minimum Span

• Any 2 pH span or 100 mV

Resolution

• 0.01 pH

Accuracy

• 0.01 pH

Temperature Compensation Modes

• Automatic or manual Nernstian compensation:
  • Range: –10 to 200 °C (14 to 392 °F)
• Process solution compensation with configurable coefficient:
  • Range: –10 to 200 °C (14 to 392 °F)
  • Adjustable: –0.05 to 0.02 %/°C (–0.02 to 0.009 %/°F)

Temperature Sensor

• Programmable Pt100, Pt1000, or Balco 3 kΩ

Calibration Ranges

• Check Value (Zero Point): 0 to 14 pH
• Slope: Between 40 and 105 % (low limit user configurable)

Electrode Calibration Modes

• Calibration with auto-stability checking:
  • Automatic 1 or 2 point calibration selectable from:
    • ABB
    • DIN
    • Merck
    • NIST
      
  • 2 x User-defined buffer tables for manual entry, 2-point calibration or one-point process calibration