Papers & Data

   VitalSensors Technologies
29 Glenwood Ave.
    Newton, MA 02459
     +1 (978) 758-3308
Q and A

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Which industries use VitalSensors products?

VitalSensors inline instruments are used for ingredient measurement and process control in the beer, soft drink, spirits, pharmaceutical, food, bioethanol and industrial manufacturing industries.  Any industry which requires real-time measurement of dissolved CO2, Alcohol, Gravity, Sugars/Brix, or Organic Acids (TA) is a potential user our sensors.

What is the technology behind VS Series Sensors?

All VitalSensors products are solid state, mid-infrared spectrometers that provide concentration readings of dissolved ingredients in fluids.  VS series sensors use Beer-Lambert's Law and Attenuated Total Reflection Spectroscopy to directly measure the molecules of interest.  MID-Infrared (MIR) is preferred over NEAR-IR (NIR) and mechanical methods because of the ability to separate molecules.  This method provides a direct, real-time measurement; ingredient concentrations are not extrapolated using calculations.

What is an inline sensor?

An inline sensor is a device that operates in-situ (directly inside of a pipe or tank); meaning liquid fluid passes over the measurement crystal versus being drawn into an offline chamber or slip-stream pipe. In-situ sensors are the most precise, reliable and sanitary sensors on the market.

What are the benefits of direct infrared measurement?

Infrared measurement has proven to be more accurate and reliable when compared to mechanical measuring methods (density/sound velocity/pressure).  VitalSensors instruments only measure the specific ingredients of interest; they are not affected by physical charaterisrics ina fluid.  When measuring CO2 for example, it is important to note that traditional temperature/pressure instruments infer CO2 content by adding estimates of other gases, using a specific gravity constant, and relying on variable temperature and pressure.  By contrast, a direct molecule measurement (via infrared) is more precise and will not be affected by a pressure or temperature fluctuation.  VitalSensors products only measure the specific molecules of interest and are blind to potential interference such as solids, density changes, viscosity or pressure spikes.

Are VS Sensors affected by density, color, turbidity or pressure?

No, because the sensor are infrared instruments, the density or specific gravity of a liquid has no affect on the concentration measurement. VS series sensors are looking only at the molecules of interest utilizing IR filters cut specifically to see the ingredient of interest.  This is significantly different from temperature-pressure, mass-flow or density instruments that often have to correct their readings and are by nature, indirect methods.

Can the VS-3000 Sensor Systems see my CIP cycle?

Using VS series sensors, CIP cycles can be measured and tracked by the temperature changes and concentration changes in the CIP fluid.  These changes occur instantaneously upon initiation of the CIP cycle, therefore, VS series sensors can immediately report liquids transition from production conditions to CIP conditions.

What sort of maintenance do VS Sensors require?

VS Sensor Systems require no routine maintenance.  Because our sensors are based on solid state technology, they contain no moving parts.  Standard CIP cleaning cycles insure a clean crystal and routine weekly reference measurement checks are all that is necessary.

What are the components of a VS Sensor System?

A standard  VS-3000 or VS-1000 Sensor System includes the Sensor head, the VS-300 or VS-200 Sensor Management Station, Dashboard Software and sensor cable. The system is sold and shipped as a package with one price.  Appropriate fieldbus connectors and wiring guides are shipped standard.

What types of networks are supported?

VS-3000 systems support Allen-Bradley EtherNet/IP or Siemens ProfibusDP.  All VS-3000 sysems are designed to be integrated into plant ethernet/control networks for Remote Access/Mainteneance

How long will it take to install a sensor?

Assuming that the correct fitting and power are already in place, it takes less than 30 minutes to install a system.  A 10mm wrench, power cable, Varivent fitting and a place to mount the VS-300 or VS-200 Sensor Management Station are all that is required.

How do VS Sensor System economics compare to the competition?

VitalSensors Products have significant economic advantages over traditional temperature/pressure or density measurement devices.  Acquisition costs are less and maintenance and support costs are significantly less.  VitalSensors products are proven to reduce false production alarms and unnecessary downtime.  MTF > 50,000 hours.

What type of support can I expect from VitalSensors Technologies?

VitalSensors offers on-site field commissiongs services and support contracts.  During a typical commissioing, VitalSensors provides 4 days of on-site calibration support, programming support and training.