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Proconex refurbishes Quality Control Systems(QCS) originally made by others, adding modern electronics and linking to Distributed Control Systems for automatic control. Except for the Scanner and Sensors, all electronic modules are commercially and independently available, proven and economically priced. The resulting(QCS) is made up of at least the following modules:
Scanners and Sensors
The Scanner and Sensors (Basis Weight, Moisture, Ash, Caliper) measure sheet variables continuously as long as there is a paper sheet present. Proconex uses the primary gauge analog signals to formulate calibrated readings in Engineering Units. Break sensors are used to withdraw the traversing platform in the event of a break.
Scanner/Sensor Controller
An Opto-22 Snap Pac controller is used to activate scanning, standardization, fixed position and off sheet modes of operation. A 2nd Opto-22 Snap Pac controller reads the sensors at rates up to 100 times per second. Profiles are formulated for every inch(box) across the sheet. The database between the controllers is universal and real time. A dedicated Ethernet network links the controllers together and submits data to DCS systems and databases(long term storage).
Operator Display
A desk top type Operator Console Computer (OCC) receives information from the Opto-22 Snap Pac controllers and shows profiles, trends and instantaneous data. This same OCC is used by maintenance technicians for calibration and trouble shooting.
The QCS can be increased in capability by adding one or more of the following optional modules:
Machine Direction / Wet End Controller
A Opto-22 Snap Pac controller that measures and controls wet and variables, as well as machine direction basis weight, moisture and ash. The controller reads the standard process sensors at rates up to 100 times per second, and calculates control outputs once per second. Control outputs for machine direction scan averages are synchronized to the "end of scan" time (normally about once per 30 seconds). The controller sends and receives data to the OCC. The controller is integrated via Ethernet to to the Scanner and participates as a member of the real time database.
Communication Links (Profiles)
An Ethernet communication link (output only) from the controllers sends data such as profiles to external profile control devices and data bases(TCP/IP).
Communication Links (Displays)
A communication link (output only) from the controllers sends data such as scan averages to large character display units.
Graphical Printer
A graphical laser printer prints screen images and reports from the OCC.
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Links to other product categories: Simulation Interfaces , SCADA Interfaces , Roll Tracking , Pulp Tracking , Raw Materials Management