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Rosemount-398 pH ORP Sensor

Rosemount™ 398 pH/ORP Sensor

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Product Description

The Rosemount 398 pH Sensor / ORP Sensor, with integral cable, 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

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2002011
Rosemount™ CPVC Flow Through Tee, 1-1/2" NPT Process Connection
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23166-00
Rosemount™ Connector, 1" x 1" 316 SS, with O-ring Groove
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23166-01
Rosemount™ Connector, 1" x 1" Titanium, with O-ring Groove
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2002565
Rosemount™ Mounting Bracket Kit
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9210013
Rosemount™ Buffer Solution, pH 6.86, 16 oz
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24091-00
Rosemount™ Cell, Low Flow, .25" inlet and outlet
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9210014
Rosemount™ Buffer Solution, pH 9.18, 16 oz
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33893-00
Rosemount™ Nut, low flow cell
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9550220
Rosemount™ O-Ring, FFKM 2-214, For Process Connector
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33898-00
Rosemount™ Cell, low flow molded
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