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Applications
 

Models:
   • the applications in the following are suitable for model AK30 and AK40. AK40 can be moved to other locations easily, even a manual measurement is possible with it though AK30 is optimized for it.

General Applications:
   • use in laboratory, field and on-line troubleshooting slow webs and paper rolls
    • target materials: Paper, board, felts, textiles, wood chip lines, sawdust lines, most fibre materials, organic and inorganic, powders, coating chemical lines, light coloured minerals, recycled paper, special papers, filter papers
   • use the AK30, AK30Mini, IRMA7Basic or Advanced software for downloading collected data for archiving and further analysis. One can also successfully do limited on-line measuring with the software acquiring moisture readings with the meter temporarily placed over the web or conveyor belt.
   • small size and low weight plus good data acquisition features make this instrument an indispensable tool for all laboratories. Full mobility and small size of the optical head open up quite new possibilities.

Cut Products:
   • use for paper strips running in laboratory paper analyzers
   • manual sampling of items whose data points are saved with key presses or with the Autotimer (a time series) to any of the memory banks. The banks's contents can be evaluated statistically in the field and they can be downloaded afterwards to a PC too.
   • sheet cutters: Moisture level before packing line or printing. Can be measured best at a stacking position where there is always a pile of incoming paper.

Powdered Products:
   • various light coloured minerals, sawdust, wood chips, fiber materials, bio fuel processing at many positions
   • measurement of a continuous flow of materials in tubes, over conveyor belts and in screws. Note that due to the small working distance the top surface should be evened out before measuring
   • material batches in tubes and over conveyor belts. Use the Autotimer to get the average reading of each batch
   • measure samples in cups or containers or big piles in the yard (AK30).

Felts and Textiles:
   • measure in textile manufacturing machines to get the level after dying and drying of the fibers
   • measure in felt manufacturing machines to get the outgoing moisture level affecting directly to amount delivered. Typical penetration 5000 microns, depending on fiber.
   • research studies of special felts and textiles for dryers and press nips for optimizing water removal
   • control outgoing level of moisture content in felt packages, sold by weight
   • Hint for thicker materials: Measure moisture on both sides and then calculate the average (the meter does this for you if you use the Autotimer). The average gives usually a very reliable value for total moisture.

Fabrication of Paper, Board and Liners:
   • use as an everyday mobile tool around the paper machine
   • production and research calenders, before and after the nip
   • make reliable measurements with very thin or perforated grades
   • make reliable measurements with the low-to medium BW grades to get the total moisture. After some 110 g/m2 the two surfaces's moistures can be different.
   • make reliable measurements with the highest BW grades to get the surface moisture. Typical penetration some 150 microns.
   • study rewetting, calendering and coating, before and after the nip
   • use in pilot machines to study effects of drying, running speed etc. AK30/40 is an indispensable mobile tool for this.
   • measurement from a rotating paper roll. No touching required
   • field measurements: Collect data from several sources and download data to PC
   • field measurements: Collect data series with the Autotimer from a moving web, download to PC
   • Hint for boards and liners: Measure moisture on both sides and then calculate the average (the meter does this for you if you use the Autotimer). The average gives usually a very reliable value for total moisture.

Printing:
   • moisture is the most important single process variable in printing
   • detect early too dry web in your printing machine to maintain runnability, else immediate printing problems or too high static electricity
   • detect early too moist web in your printing machine to maintain runnability, else immediate printing and registering problems or a skewed web causing repeated breaks
   • immune to most ink jet toners, you can reliably measure printed sheets. Other colours must be checked before application.
   • note papers and other very expensive grades: Control incoming moisture in rolls, save money by rejecting too moist rolls and making a complaint to the mill
   • you can get manually the cross profile of the web (AK30)
   • you can get manually or with a scanner the cross profile of the web (AK40)
 

Glueing:
   • moisture is the most important single process variable in water-based glueing process
   • AK50 can measure most water-based media after applying them on paper products

Laboratory:
   • study various drying/wetting phenomena. AK30/40 is not slow, it can deliver 5 high quality data points per second with no additional filtering required.
   • small size and mobility means you can pinpoint your target with the 10 mm in diameter spot
   • study single sheets in lab
   • paper strips running in off-line paper analyzers
   • coating experiments: Study drying rates and coating behavior
   • specially manufactured papers: Study the drying process and perform quality inspection
   • laboratory hot nips: Get the incoming and outgoing moisture levels
   • paper strips running in laboratory paper analyzers
   • use in special research instruments, like paper wetting and stretching devices, test printers
   • lab calanders: Get the important variable of incoming moisture to your data and equations.



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