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Rosemount-398VP pH ORP Sensor

Rosemount™ 398VP pH/ORP Sensor

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Product Description

The Rosemount 398VP pH Sensor / ORP Sensor features a chemical-resistant construction of Tefzel™ and titanium. This pH/ORP sensor is ideal for measuring pH in harsh process liquids and can be used to measure pH levels in sour water strippers, pulp bleaching towers that use chlorine dioxide, and process streams containing a variety of organic solvents.

Specifications

Measurement Range
pH sensor: 0 to 14
ORP sensor: -1500 to +1500 mV
Temperature Range
32 to 212 °F (0 to 100 °C)
Pressure Range
Hemi Bulb - 0 to 250 psig (100 to 1825 kPa [abs])
Flat Bulb - 0 to 100 psig (100 to 790 kPa [abs])
Materials of Construction
Wetted Materials: Titanium, Tefzel™, glass, and a choice of Kalrez®, Viton™, or EPDM; platinum for ORP sensor only

Features

  • pH sensor / ORP sensor has superior chemical resistance and can withstand applications containing chlorine dioxide and a wide variety of organic solvents and oxidizing agents
  • Minimum maintenance due to reference junction technology ensures long pH/ORP sensor life in coating, fouling, and poisoning processes
  • Maximum pH/ORP sensor life due to helical reference pathway which hinders reference poisoning
  • Variopol (VP8) cable connection option, for quick cable-to-sensor release, eliminates cable twisting

Documents & Drawings

Parts & Accessories

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2002011
Rosemount™ CPVC Flow Through Tee, 1-1/2" NPT Process Connection
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Liquid Analysis
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24281-00
Rosemount™ 15' VP8 Cable
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24281-01
Rosemount™ 25' VP8 cable
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2002565
Rosemount™ Mounting Bracket Kit
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24281-02
Rosemount™ 2.5' VP8 Cable
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9210013
Rosemount™ Buffer Solution, pH 6.86, 16 oz
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24281-03
Rosemount™ 50' VP8 Cable
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9210014
Rosemount™ Buffer Solution, pH 9.18, 16 oz
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24281-04
Rosemount™ 100' VP8 Cable
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9550220
Rosemount™ O-Ring, FFKM 2-214, For Process Connector
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