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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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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Food Grade Option

The Guardian-HD sensor is available with a food-grade electroless nickel finish and sapphire window (or KEL-F) for food production applications. This allows companies to scan a full array of product entering or exiting a fryer or oven.

*Guardian-HD sensor finished with food-grade electroless nickel*

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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.

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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

Available Accessories

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Specifications