This latest system, model MDS E-Scan, is a third generation unit employing microprocessor circuitry to do a comprehensive check of all the operating functions of two independent refractometers. The Electron Machine Corporation has placed more than 30 years of refractometer experience into the development of the MDS E-Scan Black Liquor Divert System. A third processor supervises the proper operation of each refractometer to insure it stays within operational limits. It also contains alarm and divert logic to initiate the proper action should a fault or low solids liquor be detected. A built-in printer records all actions with a date and time stamp.
All units have a large transmissive LCD display with backlight for easy viewing and menu selection.
All functions of the MDS E-Scan are automatic. For example, should a refractometer fault occur the unit is electronically removed from service and an alarm is activated. Simultaneously the output signal is driven low to warn the operator to disregard this reading. The monitor system then isolates, displays the fault and provides a hard copy record on the standard built-in printer. Liquor diversion is now controlled by the refractometer still in service.