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PTSA App

AlpHa Measurement Solutions |
Oxidation-Reduction Potential in Pulp & Paper

ORP in Pulp & Paper

The use of oxidation-reduction potential (ORP or REDOX) measurements in pulp & paper applications primarily involves chlorine injection (bleaching and disinfection) and oxidizer use. ORP monitoring can deliver real-time results, enabling quick response and reduced downtime. Monitoring oxidation or reduction reactions can be useful at various locations in the production of pulp and paper:

  • Color Control in Paper Products
  • Alert Operators to the Presence of Reducing Agents
  • Monitor and Control of Oxidant Addition for Disinfection
  • Waste Characterization for Treatment and Reuse Strategies

Oxidation-Reduction Potential in Pulp & Paper

ORP Sensor Capabilities

  • Full Range: -1999 to +1999 mV (meter dependent)
  • Accuracy: ±0.1 mV (meter dependent)
  • Temperature Range: -5 to 135°C
  • Tuff-Tip Option
  • Custom Mechanical Assemblies Available
  • Warranty: 12 Months

Configuration Options

  • Form Factor
    • 12 mm
    • Cartridge
    • Process Body
    • Custom Options Available
  • Housing Material Options
    • PVC / CPVC
    • Ryton® (PPS)
    • ABS
    • Epoxy
    • Polycarbonate
    • Kynar® (PVDF)
    • Polyethylene
    • PEEK
    • Teflon™ (PTFE)
    • Ultem® (PEI)
    • Glass
    • Metal
      • Stainless Steel
      • Other Metals Available
  • Thermistor Options
    • PT100 (type A & B)
    • PT1000
    • 10 kohm
    • 30 kohm
    • 100 kohm
    • Any commercially available thermistors and custom options
    • Common temperature accuracy is ±0.3°C and can vary based on thermistor option chosen
  • Reference System
    • Ag / AgCl
    • Differential
    • Custom Options Available
  • Reference Junction Options
    • Double Junction
    • Single Junction
    • Custom Options Available
  • Reference Junction Material / Design
    • Porous Plastic (PTFE / HDPE / PP)
    • Ceramic Pin / Annular / Disc
    • Fiber / Pellon
    • Sleeve Junction / Free Flow (liquid / liquid or ground glass joint)
    • Open Aperture 
    • Solid State
    • Custom Options Available
  • Solution Ground
    • Integrated in Thermowell
    • Integrated in Body Housing
    • Stand-alone
    • Custom Options Available
  • Reference Electrolyte
    • Sealed
      • Soft Gel
      • Solid Gel
    • Refillable
      • Liquid
      • Soft Gel
    • Custom Options Available
  • ORP Sensor Shape 
    • Disc
    • Single Band
    • Double Band
    • Pin
  • ORP Sensor Material
    • Platinum
    • Gold
    • Silver
    • Custom Options Available
  • Integrated Insertions
    • 3/4" NPT
    • 1/2" NPT
    • 1" NPT
    • PG 13.5
    • Custom Options Available

Communication and Connection Options

  • Analog
    • Millivolts
    • 4 – 20 mA
    • 0 – 5 V
    • 0 – 10 V
    • Custom Options Available
    • Custom options available with preamp capabilities
  • Digital
    • RS-485 MODBUS RTU
    • Custom Options Available 
  • Connectors
    • Integrated Connectors (detachable or cableless)
      • S7
      • S8
      • Integrated BNC
      • Variopin
      • Custom Options Available 
    • Connectors with Cables (including temperature)
      • BNC
      • DIN
      • MOLEX
      • Mil-spec
      • 2.5 mm / 3.5 mm phono
      • RCA
      • Spade Lugs
      • Tinned Leads
      • LEMO
      • Circular connectors
      • Any commercially available connectors and custom options available

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