Process Sensors Guardian Cross Direction Web Display System

Multiple cross direction displays

Multiple Displays Now Available

Process Sensors Guardian Web Display System allows multiple transmitter profiles to be input and displayed on a single screen.  The Guardian allows converters to measure adhesive coat weight or thickness, paper moisture at the inlet and exit of dryers and immediately after re-moisturizing stations to maintain web flatness and minimize edge curl.

The Guardian can also measure film thickness and hot melt adhesive.  The MCT360 Near Infrared (NIR) transmitter is accurate and requires virtually no maintenance.  The analog outputs can be used to control applicator roll, web speed, die bolt pressure, or steam curtain zone actuators.

Please contact us at 508.473-9901 to discuss your application today!

 

Click Here to view our Guardian Brochure!

Steam Re-Moisturizer Control to Reduce Edge Curl & Improve Web Flatness with Guardian Cross Direction Web Moisture Profile

Steam Re-moisturizers are increasingly used to reduce edge curl and consist of a series of steam chambers across the web. These chambers typically range from four to eight inches in width and can be single or double sided depending on the application.

Upgrading your steam foil/box to automatic control speeds startup, reduces scrap, and improves Quality Control. When considering an upgrade, a few points need to be considered to maximize value. The best data to be used from the web profile is the raw data instead of the moisture profiles zone averages as they may not match up to the steam re-moisturizer zone chambers when web widths change.

The raw data needs to be parsed to match up to the chamber zones and this means that the profiler must recognize varying web widths via a recipe. The parsed data is then sent to a Programmable Logic Controller (PLC) to control each steam zone?s individual actuator valve. Instead of having operators manually enter this recipe data individually into the profiler when product widths change, it?s preferred to have the HMI (Human Machine Interface) Operator Station communicate to the profiler via Wonderware, Modbus, or other suitable protocol. This reduces the number of operator tasks and speeds product change over.

The Guardian Cross Direction Web Moisture Profile Data should also be stored separately for data archiving, typically through a separate Ethernet link.

 

steam re-moisturizer control, moisture measurement, steam foil, steam curtain

Guardian Cross Direction Web Moisture Profile for Steam Control

 

Moisture Measurement – How Does It Work?

How does a Moisture Meter Work? Think of the spectrophotometers you commonly see on CSI and other investigative t.v. shows. We work in the Near Infrared (NIR) region (1200 – 2400 nm), selecting narrow band pass filters that allow specific wavelengths to be utilized for the measurement. The NIR is above the UV (sunburn) and Visible (What you see) colors of light, and below the IR (temperature) region of light.

Moisture absorbs light at 1420 and 1940 nm and one or both of these wavelengths are used as the “Measure Wavelength”. The more water present in the material, the less light reflected back at the water wavelength. One or two non-absorbing wavelengths are chosen as “Reference Wavelengths”.

An algorithm (math equation) compares the values and provides an accurate and linear measurement of moisture. The Spectra below show relative absorbance for different moisture levels. The MCT360 process moisture analyzer supplies superior accuracy and reliability.

 

Varying Levels Of Moisture In Product

Immediate Moisture Measurement On-Line Using Science

 

MCT360 NIR Moisture Analyzer

Accurate and Reliable Moisture Measurement On-Line

ON-LINE MOISTURE, OIL, AND COLOR ANALYZER

The analyzer is enclosed in stainless steel housing with food grade optical window. The system supplies measurements of moisture, oil, and color. The L*, a*, b* color scale is designed to approximate human vision. The lightness of color L* ranges from L*= 0 for black to L*=100 for diffuse white. a* indicates its position between red/magenta and green, with negative values representing green and positive values indicating red/magenta. The b* scales the position between yellow and blue, with negative values indicating blue and positive values representing yellow. The scale can also be set up for the Hunter L, a, b as well. Please contact us to discuss your application at: 508.473-9901.

 

Color Moisture Oil Measurements With One Analyzer

Color Moisture Oil Measurements With One Analyzer

 

Color NIR Display

Color NIR Display

Guardian Web Profile Moisture & Coat Weight Scanning Frame System

The Guardian Web Profile System continues to supply fast accurate results for moisture and coat weight measurement and control on paper, film, and foil. The MCT360 moisture transmitter and the MCT360 hot melt thickness gauge offer real value to converters.

Quicker Start Up Times, Reduced Scrap, and Data Histories are all features of the Guardian Web Profile System for paper moisture, coat weight, and film thickness on paper, metal, and foil.

Paper Moisture and Coat Weight

Faster Start Up Times, Reduced Scrap, Data Histories

Food Safety Modernization Act

MCT330SF NIR Moisture Transmitter for Moisture, Oil, Fat, and Flavorings

Key words: food safety, MCT330SF, stainless steel enclosure, reduce bacteria, moisture, oil, fat, flavorings, food safety modernization act

 

?On January 4, 2011, President Obama signed into law the most sweeping reform of our food safety laws in more than 70 years. The Food Safety Modernization Act (FSMA) aims to ensure the US food supply is safe by shifting the focus from response to prevention.? SnaxPo 2012.

?For example, processors of all types of food will now be required to evaluate the hazards in their operations, implement and monitor effective measures to prevent contamination, and have a plan in place to take any corrective actions that are necessary. Also, FDA will have much more effective enforcement tools for ensuring those plans are adequate and properly implemented, including mandatory recall authority when needed to swiftly remove contaminated food from the market.

This law represents a sea change for food safety in America, bringing a new focus on prevention, and I expect that in the coming years it will have a dramatic and positive effect on the safety of the food supply. ?
Margaret A. Hamburg, M.D. is the Commissioner of Food and Drugs

The MCT330SF measures moisture, oil, fat, and flavorings on-line. It?s accurate, rugged, and reliable. The MCT330 is also housed in a unique stainless steel design with food grade optical window for wash down environments and high temperatures. The housing minimizes any areas for bacterial growth and is sealed for wash downs that will increase as manufacturer?s move from ?response to prevention?.

Click here to visit our MCT330SF Brochure

Click here to visit White House Blog

 

MCT330SF Stainless Steel Housing Reduces Bacterial Growth Area

Moisture, oil, fat, flavorings