UV-Vis Process Analyzer for Use in Process Environments

About Guided Wave’s Model 508 Process Analyzer

The Model 508 plus Process Analyzer can be made available as either a single or multi-channel fiber optic UV-Vis spectrometer system that has been specifically designed to be used in process environments. With configuration capabilities of up to four channels, the Model 508plus sits within a NEMA 4x enclosure that is equipped with its own thermal control system to ensure that the most consistent performance rates are achieved while in 24/7 service mode.

With up to 16 possible parameters being monitored on each channel, the Model 508 Process Analyzer is a suitable tool for numerous applications ranging from those occurring within chemical and polymer plants, refining and petrochemical, pharmaceuticals and other specialty chemicals, paints and varnishes, adhesives, wastewater management, biotech and much more. With its own built-in computer control unit and optional touch screen, the Model 508 is an ideal tool that provides a convenient user interface.

Some of the most common applications of the Model 508 Process Analyzer include, but are not limited to the following:

  • L*a*b* and other color coordinates
  • Solvent recovery purity
  • Maleic acid in tetrahydrofuran (THF)
  • Trace (ppm level) impurities in wash water; Clean-In-Place for Pharma
  • Polynuclear aromatics (PNAs) in middle distillates
  • Phenol in cyclohexanone
  • Sodium hypochlorite in bleach solutions
  • Aromatics in monomers
  • Benzene in cyclohexane
  • Saybolt or ASTM color of diesel and jet fuel
  • Toluene diisocyanate in polyurethane
  • UV inhibitors in polymers
  • Antioxidants in polymers and plastics
  • Color and clarity of varnishes
  • Halogens and various halogenated compounds in vapor streams
  • Sorbic acid in water
  • Ferrous chloride in acid
  • Acetonitrile purity
  • Hypochlorous acid

Reliable, Rugged, and Flexible Tool

With over 35 years of experience in online process monitoring and stream sample analysis, Guided Wave combines unique designs and developments to the Model 508 process analyzer that is capable of meeting the specific challenges associated with the most demanding production environments. Modular units exemplified by the Model 508 plus’s ‘snap tight’ installation dock is highly preferred for this purpose. Additionally, the use of a Plused Xenon source lamp has a lifetime lasting over two years.

Product Features and Specifications

  • High sensitivity 2048 Pixel Diode Array Spectrometer
  • Built-in compact Xe fl ash UV-Vis light source
  • Rapid data collection
  • Built-in Instrument Control Unit with door mounted touchscreen
  • Analyzer control program developed in LabVIEWTM
    • Features customizable settings and trending capability
  • Modbus Ethernet TCP/IP communications
    • Built-in event setup
  • Optional Opto-22 panel
    • Ideal for communications with 4-20 m
    • Analog and discrete interfacing
  • 16 Analog Inputs
    • Utilized for the correction of temperature and pressure rates within vapor/gas streams
    • Requires Modbus or OPTO 22
  • Compatible with Guided Wave’s proven probe and flow cell products
  • Fully insulated NEMA 4 or 4X enclosure with built in Internal Thermal Control
  • Full spectrum scanning
    • 200 nm to 850 nm
  • Multi-channel design
    • Available for one to four channels
  • Individual pulsed Xenon source on each channel
  • Unscrambler® Calibration Model Ready
    • Also available with the optional Unscrambler Predictor
  • Simple B-Vector and formulaic model
  • Built-in Color Analysis
  • User definable prediction engine
  • File formats:
    • GW ASCII/BINARY
    • Grams
  • Spectrometer Type:
    • Transmission Grating
    • High Sensitivity Diode Array
  • Number of Channels:
    • One to four
    • Independent
    • Sequentially Scanned
  • Wavelength Range: 200 nm – 850 nm
  • Wavelength Accuracy: ±0.1 nm
  • Photometric Noise:
    • < 0.8 mAU
    • 0 AU
    • 550 nm
    • 1 sec
  • Stray Light:
    • < 1 %
    • <0.1% @ 220 nm
  • Bandwidth: < 3 nm
  • Dynamic Range: 2000:1 for a single scan
  • Minimum Scan Time: 5 milliseconds
  • Fiber Optic Connections: SMA 905
  • Compatible Fiber Type: High-OH Deep-UV-Solarization Resistant
  • Compatible Fiber Diameters:
    • Between 200 μm and ≤ 600 μm
    • 400 μm standard
  • Internal Instrument Control Unit (ICU):
    • Internal with solid state drive
    • Further specifications provided by Guided Wave
  • Operating System: Windows® embedded
  • Touch Screen Monitor:
    • 15” [38 cm] XGA 1024 x 768 color
    • General Purpose
    • Class I, Division 2 only
  • Software:
    • GW5080S UV-Vis Operating System (further explained in document #7005)
  • Communications:
    • Modbus TCP over Ethernet
    • Serial RTU
    • Optional analog and digital I/O w/OPTO 22 panel through the use of the Modbus TCP Ethernet
  • Ethernet: 10/100/1000 Mbps
  • Temperature Range: 0 °C - 45°C sun shade required
  • Humidity: 0-100% rain shelter required
  • Internal Temperature Control: 32 °C ±0.5 °C
  • Light Source / Life:
    • 2 W pulsed Xenon Lamp
    • > Two years
  • Enclosure:
    • NEMA 4 or NEMA 4x
    • IP66 Rating
  • Power: 110 or 220 Vac 50/60 Hz, 1500 W
  • Dimensions:
    • General Purpose (w x d x h) 30”x 24” x 17.7” [60 cm x 45 cm x 73.5 cm]
  • Hazardous Area Operation:
    • Z-Purge (CI, D2)
    • X-Purge (CI, D1)
    • ATEX (contact factory)
  • Weight: Approximately 200 pounds [91 kg]
  • Comes with a two-year limited warranty
  • RoHS Compliant
  • Available Options:
    • Class I Div 2 Groups C & D, Z-Purge
    • Class I Div 1 Groups C & D, X-Purge
      • Not available with touchscreen
    • SNAP I/O analog and discrete communications package by Opto-22 (Modbus Ethernet TCP/IP)
    • Unscrambler® Predictor for expanded modeling capabilities
    • Compatible with 400, 500 and 600 μm diameter UVSR fiber

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