Soup Packaging

Soup in polyethylene bags exiting a chiller and entering the packaging line, monitored by Process Sensor?s infrared thermometer model PSC SSS-Laser.

The Application

In the Food Industry, plant cleanliness and maintaining a bacteria free product are primary concerns. To eliminate bacterial development, it is critical to maintain foodstuffs and processing equipment at temperatures below 41?F.

Truesoups, a division of H.J. Heinz Co., ( SIC code 209903 Food products ) provides frozen, ready to heat and serve soups. At its manufacturing plant located in Kent, Washington State, soup is conveyed in polyethylene bags to a chiller.

After exiting the chiller, the bags pass into the field of view of a Process Sensors model PSC SSS-Laser infrared thermometer with a spectral response of 8 to14?.

Clear polyethylene plastic transmits 90% of IR energy in that waveband. The spectral response also avoids the atmospheric moisture absorption bands that are present at either side of it. This feature can be important in food processing where steam and water vapor is often present.

At this time, the customer is using only the 4 -20mA output to display the temperature on an indicator, but according to Process Engineer, Dave Jametski, he plans to employ the Ethernet output for computer data acquisition using Process Sensor?s CompactConnect software package.

Jametski says that the stored data will be an essential tool in investigating product problems that often may only come to light after manufacture.

Application Tips

Food processing plants require some unique factors to be taken into account. First is the presence of steam and water vapor in the atmosphere. This may require air purging, but the source of air must be pure so as not to contaminate the product.? ? It is often better to use nitrogen for this reason.

If water-cooling is required, for meat cooking applications, care must be taken not to overcool, as this will cause condensation to form on the lens. The sensor should be positioned so that condensate does not drip onto the
product or the cooling flow must be regulated, thereby not exceeding the dew point that would cause condensation.

Food processes are frequently hosed down with hot water, or in some cases steam, so it is important to seal signal and power cable entry points. A long sight tube or gate valve can be used to protect the lens if necessary.

The Market

Applications for infrared thermometers in food processing are abundant and varied; from monitoring frozen fish on fish-stick cut up lines, to measuring and controlling sealing jaws on plastic bag sealing machines.

Processes are usually highly automated, with limited operator attendance, increasing the importance of monitoring, control and data acquisition instrumentation. OEM?s include continuous and static oven builders,
microwave and steam-kettle cooker manufacturers. Mixer and mechanical handling companies are also good prospects.

Process Sensors Model PSC-SS-Laser, with laser aiming defines the measurement area at any distance.

Instrument Selection

Process Sensors Model PSC-SS-Laser with a 75:1 FOV is used for continuous measurement at the chiller exit. Outputs: 4 -20mA, T/C and optional Ethernet.

Process Sensors Portable Model PSC-PSLT is recommended for hand held measurements.

PTI-170L High Resolution Thermal Imaging Camera

Process Sensors Corporation has broken new ground with the introduction of its brand new Model PTI-170L High Resolution Thermal Imaging Camera with Dual Vision, designed for use by maintenance professionals, service and electrical inspection thermographers, building inspectors, and energy conservation specialists.

The high resolution Model PTI-170L is equipped with a 384 x 288 pixel UFPA detector that delivers 44% more pixels and is visibly sharper than the arrays of the industry-standard portable imaging cameras used today. The versatile camera produces sharp, crisp images that are exceptionally clear, offers a fast frame rate of 60HZ and utilizes easy-to-use comprehensive report generating software that turns out detailed reports in an instant.

The fully radiometric Process Sensors PTI-170L stands out as an exceptional performer in the power / electrical industry, for energy audits, building inspections, roof inspection, and HVAC applications that have recently become more critical as both industrial and private individuals struggle to conserve and maximize precious energy sources efficiently. ? It is ideal for use in weatherization and home energy improvement programs.

Enhanced features of the camera provide dual vision capabilities that blend (picture-in-picture) high resolution thermal and visible light images together on one screen to simplify analysis and improve problem detection.? A selection of six different color palettes allows user to easily detect temperature anomalies for the intended application.? The light weight, yet rugged, PTI-170L sports manually focusable optics adjustable from 300mm to Infinity and an onboard full color CCD camera. ? Video output is PAL and NTSC.? A distance adjustable position laser pointer is standard, as well as a high resolution large 3.5? LCD, color VGA digital backlit display.

The PTI-170L?s short cut keys enable an operator to bypass the main menu with the push of only one button and provide quick access to the all-important temperature level, sensitivity and save features instantly.

The Process Sensors PTI-170L series of imaging cameras offer extended temperature ranges from -20?C to + 1500?C (-4?F to +2732?F) and includes a 2G removable SD card for high capacity memory storage capabilities ? up to 3000 IR images.? Optional Bluetooth voice annotation is also available.

Reasonably priced, the Process Sensors Model PTI-170L Series delivers the very best price performance ratio in its class while delivering unprecedented high resolution imagery to meet the demanding needs of industry professionals.

Process Sensors will be exhibiting at the Great Renewable Energy Event


When: February 2, 2010 to February 5, 2010

Where: Washington Convention Center, Washington DC

Booth# 525

Process Sensors Corporation manufactures two different styles of Moisture Sensors.

The MCT-360 Moisture Sensor utilizes NIR (Near Infrared Reflection) technology.? It is designed to measure moisture on line.? The MCT-360 is normally located over a moving conveyor.? The measurement is a non-contact, instantaneous, continuous moisture determination.? The MCT-360 will make the measurement and produce a display for percent moisture, along with analog and digital outputs for control and monitoring purposes.

The MCT-660 utilizes the same NIR technology but it is used as a bench top/off line tester.? An operator brings a sample of the material to be measured to the MCT-660.? The sample is rotated beneath the MCT-660 optical bench and the moisture of the sample is determined and displayed within 10 seconds.

Process Sensors Corporation is recognized as the leader in NIR process moisture measurement.? Our customer base is made up of large and small manufacturing companies throughout the world.? We routinely make measurements of food, plastics, tobacco, wood, paper, glass and textiles in production environments.? We also routinely measure in-coming commodities such as soybeans, alfalfa, corn, nuts, almonds, etc.

Process Sensors Corporation is a small, specialized United States instrument company located in Milford, MA.? We have a talented and experienced technical support staff, willing and anxious to work on new and challenging applications.? We are in attendance at the RETECH meeting in order to find ways to contribute to our nation?s determination to find new ways to create green and re-usable energy production systems.