SM23 Electrode for pH/Redox

Brand: Yokogawa Electric Corporation

This sensor is suitable for long term, reliable Sodium ion monitoring, as well as several other cations. Despite the name “Sodium sensor”, the most common application of the SM23 is pH measurement. 

In this application, the SM23 is used as a reference electrode – dramatically improving measurement reliability in many demanding applications. 

Typical applications for the SM23 are found in industrial process control.
Features
  • “All glass” construction.
  • Dimensions and design meet the requirements of DIN 19263
  • Isothermal point of intersection: pNa = 0 (nominal value at 0 mV).
  • Maximum pressure 1,000 kPa (10 bar).
  • Metal foil screening.
  • Fast responding (ball shaped), and heavy-duty (dome shaped) membranes 

Specifications

Applications

  • Harsh Processes (Brine Applications)
  • Pure Water

Approvals & Certifications

  • IEC

BSP Connection

  • G 1/4” Male

Bulb Material

  • Universal PNa-Glass Bulb (ShockProof)

Dome

  • Universal PNa-Glass Dome (Heavy Duty)

Environmental Protection

  • IP65
  • Watertight

Materials of Construction

  • Silver Chloride - Pin

NACE & NIST

  • NIST

Resistance

  • 100 to 700 megaohms at 25° C (77° F) - Glass Resistance

Sensor, Probe Diameter

  • 0.47” (12 mm)

Sensor, Probe Length

  • 4.72” (120 mm)

Temperature Range

  • 0° to 100° C (32° to 212° F)

  • Harsh Processes (Brine Applications)
  • Pure Water
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