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K-Patents SAFE-DRIVE Process Refractometer, PR-23-SD

PR-23-SD SAFE-DRIVE Process Refractometer

Brand: K-Patents Process Instruments
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K-Patents SAFE-DRIVE™ Process Refractometer PR-23-SD is a retractable refractometer for measuring black liquor dry solids and green liquor density or TTA in kraft chemical recovery process.

K-Patents SAFE-DRIVE™ Process Refractometer PR-23-SD system consists of:
  • Retractable SAFE-DRIVE™ Process Refractometer Sensor
  • SAFE-DRIVE™ Isolation Valve
  • SAFE-DRIVE™ Retractor
  • Steam Wash System
  • Indicating Transmitter

K-Patents SAFE-DRIVE™ design allows for safe and easy insertion and retraction of the sensor under full operating pressure without having to shut down the process (Patent No. US 7631569).

The measurement range covers 0-100% by weight. The accuracy is typically ±0.1% b.w. and the measurement is automatically temperature compensated. Low and high concentration alarms can be configured. Because of the digital sensing technology, even large amounts of suspended solids, bubbles or color changes do not affect the measurement or the accuracy.
Features
  • SAFE-DRIVE™ isolation and retractor allow for safe and easy insertion and removal of the refractometer sensor under full process pressure. Easy-to-place and self-retaining design. Triple sealing by two lip seals and an O-ring.
  • Accidental opening or closing of the isolation ball valve is prevented.
  • The retractable prism wash nozzle can be safely removed for a service check.
  • SAFE-DRIVE™ retractor protects the user from accidental spills during retraction and insertion.
  • The SAFE-DRIVE™ sensor is very easy to install to any pipe size (2"...24") by welding or via a spool piece (diameter 2"...20"). Can be mounted either on horizontal or vertical pipe lines. Maximum static pressure is 40 bar, maximum operating pressure is 10 bar. Spool piece process connection is DIN-flange PN25/ANSI-flange 150 lbs.
  • Calibration is identical for any SAFE-DRIVE™ sensor: Refractive Index (nD) 1.3200 - 1.5300, which corresponds to 0-100 Conc at 100° C (212° F). Therefore, all sensors can be freely interchanged without optical calibration or parameter changes.
  • Process temperature range: -20° to 170° C (-4° to 340° F)
  • Dual connectivity: one transmitter can operate two sensors independently. A second sensor can be easily integrated later.
  • Completely digital system: particles and bubbles do not affect operation or accuracy.
  • Patented CORE-optics module: no drift, no re-calibration, no mechanical adjustments.
  • Ethernet connection and remote panel through Internet allow for data-logging and remote operation, e.g. review instrument data and diagnostics.

Specifications

Brand

Accuracy

  • Refractive Index ND ± 0.0002 (Typically Corresponds to ± 0.1 % by Weight)

Alarms / Wash Relays

  • Two Built-In Signal Relays, Max.

Ambient Temperature Range

  • Indicating Transmitter: 0° to 50° C (32° to 122° F)
  • Sensor: -20° to 45° C (-4° to 113° F)

Cable Fittings to Indicating Transmitter

  • European Cable Glands M20 x 1.5 or US Conduit Hubs

Core-Optics

  • No Mechanical Adjustments

Current Output

  • Indicating Transmitter DTR: 4-20 mA - Max.
  • Indicating Transmitter DTR: Galvanic Isolation 1,500 Vdc or AC (Peak), Hold Function During Prism Wash

Digital Measurement

  • 3648 Pixel CCD Element

Display

  • 320 x 240 Pixel Graphical LCD with LED Backlight

Ethernet Connection

  • 10/100 Mbit/second, Data Acquisition over UDP/IP Protocol Using A Standard Cross-Over Ethernet Cable (10/100Base-T Cat 5E Cable with RJ45 Connectors)

Indicating Transmitter Weight

  • 10 lbs (4.5 kg)

Instrument Verification

  • According to ISO 9000 Quality System: with Standard R.I. Liquids & Transmitter's Menu Guided Procedure

Interconnecting Cable

  • IEC 61158-2 Compliant 2-Wire Cable

Interconnecting Cable Length

  • 33 feet (10 metres) Standard
  • Maximum

Isolation Valve Connection

  • SAFE-DRIVE Flange ANSI 1.5” 150 lbs

Isolation Valve Process Connection

  • By Welding to Pipe Sizes of 2”-24”, for Both Vertical & Horizontal Pipe Lines

Isolation Valve Process Wetted Parts

  • AISI 316L Stainless Steel
  • Elgiloy / AISI301 Spring
  • Flange Gasket: Viton
  • Lip Seals: Bronze Teflon
  • SAF 2205 / Duplex Steel Stainless Steel 2377
  • UNS S31803
  • Werkstoff-Nr. 1.4462

Light Source

  • Light Emitting Diode (LED), 589 Nm Wavelength, Sodium D-Line

Power

  • Indicating Transmitter DTR: 24 Vdc, 30 VA
  • Indicating Transmitter DTR: AC Input 100-240 Vac, 50/60 Hz

Prism Wash

  • Retractable Steam Wash Nozzle with Check Valves

Process Pressure

  • Operational Pressure - psi: 0 to 150 (kPa: 0 to 1,000, bar: 0 to 10)
  • Static Pressure - psi: 0 to 300 (kPa: 0 to 2,000, bar: 0 to 20)

Process Temperature

  • -20° to 180° C (-4° to 350° F)

Refractive Index Range

  • Full Range, ND=1.3200 to 1.5300 (Corresponds to 0 to 100 % by Weight)

Repeatability

  • nD = ± 0.0001 (Typically Corresponds to ± 0.05 % by Weight)

Retractor Weight

  • 17 lbs (7.7 kg)

Sensor & Isolation Valve Weight

  • 23 lbs (10.5 kg)

Sensor Connectivity

  • One or Two Sensors can be connected to One DTR

Sensor Housing

  • Stainless Steel

Sensor Process Wetted Parts

  • Prism Gaskets PTFE (Teflon)
  • SAF 2205 / Duplex Steel Stainless Steel 2377
  • UNS S31803 / Prism Spinel
  • Werkstoff-Nr. 1.4462

Sensor Protection Class

  • IP67
  • NEMA 4X

Speed of Response

  • 1 second Undamped, Damping Time Selectable up to 5 minutes

Temperature Sensor

  • Built-In Pt-1000, Automatic Digital Temperature Compensation

Transmitter Protection Class

  • Enclosure IP66
  • NEMA 4X

Documentation

Data Sheets

Product Manuals

Application Considerations

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