PH4/OR4 Sensor Series allows pH/ORP measurement under severe conditions, such as where the process fluid is heavily contaminated or contains sulfide. 

PH4/OR4 Sensor Series meets the simple apparatus requirements.
Features
  • Extremely long life span for ORP measurement in electrolytic process
  • With the pressurized inner solution, a pressure holder is not needed
  • The reference electrode is composed of silver ion trap which inhibits the generation of sulfide around the ceramic liquid junction

Specifications

Applications

  • Caustic Electrolysis Solutions

Cable Material

  • PVC - Cable Jacket Material

Diameter

  • 0.47” (12 mm) - Glass Tube

Diaphragm Material

  • Ceramic Junction

Electrical Connectors

  • Cable
  • Fork Terminal
  • M3 Ring Terminal
  • M4 Ring Terminal
  • Pin Terminal

Element

  • Pt (Ring) - ORP Element

Enclosure, Body Material

  • Glass
  • Platinum

Length

  • Insertion Length: 1.4” (120 mm)

Materials of Construction

  • Silver Ion Trap in Reference Electrode

Measuring Range

  • -1,500 to 1,500 mV

O-Ring Material

  • EPDM

Pressure Range

  • Atmospheric Pressure to psi: 36.26 (kPa: 250, bar: 2.5) - Measuring Pressure

Temperature Range

  • 0° to 100° C (32° to 212° F)
  • -20° to 70° C (-5° to 160° F) - Cable Measuring Temperature

Wetted Materials

  • 316 Stainless Steel - Adapter
  • Heat-Resistant Vinyl Chloride
  • Polypropylene - Adapter
  • PVC (Rigid & Heat-Resistant) - Adapter
  • Titanium - Adapter

  • Contaminating & Sulfide Ion Containing Solutions
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