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Model 546 pH/ORP Sensor

The versatile Model 546 is suitable for inline sample flow applications using the 3/4-inch NPT process connection. A similar 3/4-inch NPT connection is used on the back of sensor for mounting the sensor in high pressure hot tap and submersible installations. With tip lengths from 0.5 to 5.0 inches, the 546 sensor can pass through nozzles and extended pipe flanges to reach the process and provide optimal pH/ORP measurement.


Reference Axial Ion Path®

  • Patented design increases sensor life, accuracy and reliability
  • High poison resistance: reduced calibration offset error
  • Large surface reference junction eliminates clogging problems
  • Eliminates error due to fluctuating pressure
  • No exotic gel or polymer electrolytes that can be incompatible with the process
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