PSC Guardian-HD
The Guardian-HD Web Profiling Series is a rugged analyser that measures moisture, coat weight, adhesive thickness, and web temperature for all paper, film, and web-converting processes. It provides a non-contact, non-destructive online measurement of a complete zoned web profile, helping operators reduce instances of edge curl and lay flat issues that can result from improper moisture control. This translates to improved quality and consistency, less waste, and a quick return on investment.
Description
Accurate Moisture, Coat Weight & Film Thickness Profile Measurement
The Guardian-HD Series 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. Moisture and coat weight measurements from the Guardian-HD Series can be made on many substrates and for wet-end and dry-end application processes.
Benefits
- Minimise 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 customised to the width of the web, along with the ability to position the NIR sensor wherever it is needed
- Automatic edge detection feature senses roll width to streamline set-up processes, and realigns to accommodate web drift
- Reduce waste by instantly identifying production inefficiencies
Features
- Easy calibration, operation, and standardisation
- Rugged, sealed industrial frame and linear actuator withstands hot and humid environments common with paper and converting processes
- Two models to choose from – up to 100 total measurement zones and up to 100 different recipe codes (materials)
- Graphical display included
- Easily connect to closed-loop control systems or local alarms
- Automatic sync of roll reports to a local network
- Configurations available to monitor and control multiple Guardian-HD systems simultaneously
- Optional Ethernet IP, Modbus TCP/IP interface, or OPC server
Applications – Rugged NIR Scanning for a Complete Zoned Web
Examples include:
- 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
Hundreds of web-converting operations trust the Guardian-HD Web Profiling Series to identify production inefficiencies and generate a quick return on investment. They help operators control moisture and coat weight parameters to within 0.1 per cent of the target to meet product specs every time.
The Guardian-HD Series systems are built to last, simple to install, and virtually maintenance-free for years of reliable, consistent results. Choose from three models based on your application or operation’s needs.
How It Works – Continuous Scanning of the Full Web Profile
The Guardian-HD Series features an NIR sensor connected to a traversing frame that continually scans 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 support 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 analysing. 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 underside scanning.
Food Grade Option – Food Production Applications
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 products entering or exiting a fryer or oven.
