Moisture & Compositional

Guardian-HD Essential Web Profiler

Guardian-HD Essential Web Profiler
Guardian-HD Essential Web Profiler

Product Overview

The Process Sensors Guardian-HD Essential Web Profile Analyzer is a single-scanner operation to measure moisture, coat weight, and temperature (optional) for all paper, film, and web-converting processes. It features a Near Infrared (NIR) sensor that connects to a traversing frame that continually scans material across the width of the web for real-time analysis of important quality parameters.

  • Advanced functionality for operators to scan multiple constituents
  • Reduce start-up times and waste by instantly identifying production inefficiencies
  • Record data cross 50 total measurement zones with up to 100 different recipes (products)
  • Limit instances of edge curl and lay flat issues
  • Lane (move and park) feature allows operator to focus the NIR scanner on specific regions of the web
  • Optional Ethernet IP, Modbus TCP/IP interface, or OPC server
  • 12” graphical touch-screen display
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Features

  • Easy calibration, operation, and standardization
  • Rugged, sealed industrial frame and linear actuator withstands hot and humid environments common with paper and converting processes
  • Automatic edge detection senses roll width to streamline set-up processes, and realigns to accommodate web drift
  • Configurations available to monitor and control multiple Guardian-HD systems simultaneously
  • Easily connect to closed-loop control systems or local alarms

Benefits

  • Minimize edge curl and lay flat issues with 100% real-time inspection of moisture, coat weight, thickness, and temperature of converting lines
  • Decrease manual start-up times by 20%, eliminating the need for time-consuming lab testing and adjustments
  • Each system can be customized to the width of the web, along with the ability to position the NIR sensor wherever it is needed
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Applications

Rugged NIR Scanning for a Complete Zoned Web

Moisture and coat weight measurements can be made on many substrates including paper, film, foil, textiles, release liners, tags, tapes and labels. The Guardian-HD Web Profiling System is commonly used in the following applications:

  • Hot melt & film thickness
  • Wet end water based coat weight
  • Dry end organic coat weight
  • Exit and inlet dryer moisture
  • Re-moisturizers (LAS, steam curtains and water decks)
  • Moisture and coatings on paper webs
  • Thickness of hot melts
  • Thickness of pressure sensitive adhesives
  • Thickness of water-based adhesives
  • Paper pulp
  • Plastic film thickness
  • Biax film
  • PVB & EVA film
  • Exit and inlet dryer moisture measurement
  • Cast film
  • Coated abrasives
  • Wax coatings
  • Extrusion coatings on paper/foil
  • Moisture in corrugated board
  • Textiles
  • Pattern coatings (move and park)
  • Flexible packaging
  • Flooring
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Guardian-HD Essential Web Profiler

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How It Works

Continuous Scanning of the Full Web Profile

The Guardian-HD Series features an NIR sensor that is connected to a traversing frame to continually scan the full-width of a web profile for moisture and coat weight parameters. Real-time data is presented on an easy-to-understand touchscreen display for cross direction web profiling, lane and machine direction measurements. In some configurations, larger displays with Windows®-based software are available for monitoring multiple line profiles at a single central console.


All Guardian-HD Series configurations allow for USB data-logging with the ability to export to .csv, .xml or .txt file formats.

Each Guardian-HD frame is custom-built for its specific application, and the analysis software can be pre-programmed for specific recipe codes for the material it is analyzing. The NIR sensor can also be positioned in different ways to accommodate reflective surfaces (common with wet-end coating applications) as well as horizontal, vertical, and under-side scanning.

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System Components

All components of the Guardian-HD Essential are ruggedized and specified to operate for several years in challenging conditions. Unlike nuclear and X-Ray systems, Guardian-HD Essential does not require costly regulation compliance or safety certifications. Each unit is custom-built for its specific application. System components include:

  • Industrial scanning frame
  • An NIR smart sensor
  • Local, easy-to-read touch screen display with non-Windows® based software
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Software

The Guardian-HD Essential is sold standard with non-Windows®-based software that presents data in an easy-to-understand format. These configurations include optional USB raw data-logging capabilities to save and export data to. csv, .xml, or .txt files for additional analysis.

The Guardian-HD Essential is sold standard with non-Windows®-based software that presents data in an easy-to-understand format. These configurations include optional USB raw data-logging capabilities to save and export data to. csv, .xml, or .txt files for additional analysis.

The Guardian-HD Essential is sold standard with non-Windows®-based software that presents data in an easy-to-understand format. These configurations include optional USB raw data-logging capabilities to save and export data to. csv, .xml, or .txt files for additional analysis.

The Guardian-HD Essential is sold standard with non-Windows®-based software that presents data in an easy-to-understand format. These configurations include optional USB raw data-logging capabilities to save and export data to. csv, .xml, or .txt files for additional analysis.

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Installation Options

The Guardian-HD Essential system can be positioned horizontally, vertically, or for under-side viewing of material.

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Accessories

  • Hi/low moisture-only calibration check standards
  • Data bus interfaces
  • Simultaneous temperature measurement
  • 4X alarm relays
  • Light stack alarm
Guardian-HD Essential Web Profiler

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Specifications

Guardian-HD Essential

Power 90-260VA
Number of Constituents Up to 2 (NIR + Product Temperature)
Calibration Codes/Recipes 100
Ambient Temperature 0 – 50°C (32 – 120°F) with air cooling up to 80°C (160°F)
Scanning Frame Outputs 3X 4-20mA Selectable Sources; Live NIR Value; Scan NIR Average Values; Live Temperature Scan & Scan Temperature Average Value
Scanning Frame Inputs Web Break; Web Length; Cooling Air; Sensor Window Purge
Moisture Range Min. 0.1%, Max. 95%
Moisture Accuracy +/- 0.1%
Coatings Range Min. 0.1 GSM, Max. 250 GSM
Coatings Accuracy +/- 0.1 gr/m
Repeatability +/- 0.1%
Operator Interface 12 in. Touchscreen: Non-PC Based, Single-Frame Operation, Cross Web Profile, Machine Direction Trends
Analysis Profiles 2
Interface Communication to Frame RS485
Interface Power 24 VDC from Frame
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