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K-Patents Process Refractometer, PR-23-GP

PR-23-GP Process Refractometer

Brand: K-Patents Process Instruments
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K-Patents Process Refractometer PR-23-GP is an ideal all-round instrument for measuring the Refractive Index of water based hydraulic fluids and dissolving chemicals such as caustic soda. For underground and surface installations.
The PR-23-GP sensor is installed via a flange or clamp connection.

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
  • Universal calibration of each sensor: All sensors are freely interchangeable.
  • Full measurement range Refractive Index nD 1.3200 – 1.5300, which corresponds to 0-100 % by weight.
  • Completely digital system: particles and bubbles do not affect operation or accuracy.
  • Patented CORE-optics (US Patent No. US6067151): no drift, no re-calibration, no mechanical adjustments.
  • Ethernet connection and remote panel for data-logging and remote operation.
  • Process temperature range: -20° to 150° C (-4° to 300° F)
  • Fast process temperature measurement by built-in Pt1000 and automatic temperature compensation.
  • Dual connectivity: one transmitter can operate two sensors. A second sensor can be easily integrated later.
  • Easy on-site instrument verification within users' own quality assurance system with standard Refractive Index liquids.
  • Efficient water or steam wash for the prism: for cases where process residue fouls the sensor prism. Steam works when the liquid is particularly sticky or tenacious. In applications where steam may bake the process liquid onto the prism, pressurized water works to clean the prism.
  • ATEX approved for Zone II, area classification EX II 3 G EEx nA II T4.
  • ATEX approved for Zones 0 and 1, area classification ATEX II 1G Ex ia IIC T4 and for IM1 Exia I Ma (only Intrinsically safe PR-23-GP-IA with single sensor transmitter STR).
  • CSA certified for Class I, Div. 2, Groups A, B, C and D, T4.
  • FM approved for Class I, Div. 2, Groups A, B, C and D, T6.
  • cCSAus certified for Electrical Safety, Sensor: Class I, Pollution Deg. 3; Transmitter: Class I, Pollution Deg. 2; Installation Cat. II.

Specifications

Brand

Accuracy

  • R.I. ± 0.0002 (Corresponds Typically 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: -40° to 45° C (-40° to 113° F)

Cable Fittings to Indicating Transmitter

  • European Cable Glands M20 x 1.5 or US Conduit Hubs

Calibration

  • With Cargille Standard R.I. Liquids over Full Range of ND 1.3200 to 1.5300

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

  • Indicating Transmitter DTR: 320 x 240 Pixel Graphical LCD with LED Backlight

Ethernet Connection

  • 10/100 Mbit/second, Data Acquisition over UDP/IP Protocol with K-Patents PR-11111 Data Logging Software

Instrument Verification

  • With NIST Traceable Cargille Standard R.I. Liquids

Interconnecting Cable

  • IEC 61158-2 Compliant 2-Wire Cable

Interconnecting Cable Length

  • 33 feet (10 metres) Standard
  • Maximum

Keypad

  • Indicating Transmitter DTR: 18 Membrane Keys

Light Source

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

Power

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

Process Connection

  • 3” / JIS-Flange 10k 80A / Line Sizes less than 2” Via Pipe Flowcell
  • DN 80 PN 25 / ANSI-Flange 150 lbs
  • Sandvik Coupling L 88 mm / DIN-Flange 2656

Process Pressure

  • psi: 0 to 350 (kPa: 0 to 2,500, bar: 0 to 25)

Process Temperature

  • -40° to 150° C (-40° to 302° F)

Process Wetted Parts

  • AISI 316L Stainless Steel
  • Prism Gaskets Modified PTFE (Teflon)
  • Prism Spinel

Refractive Index Range

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

Repeatability

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

Sensor Connectivity

  • One or Two Sensors can be connected to One DTR

Sensor Housing

  • Stainless Steel

Sensor Protection Class

  • IP67
  • NEMA 4X

Speed of Response

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

Temperature Compensation

  • Automatic, Digital Compensation

Temperature Sensor

  • Built-In Pt-1000, Linearization According to IEC 751

Transmitter Protection Class

  • Enclosure IP66
  • NEMA 4X

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