Service manual

The Electron Machine Corporation
MDS E-SCAN
Introduction
Increasing emphasis on recovery boiler safety in pulp and paper manufacture requires highly
accurate, reliable instrumentation at prescribed points in the process. In particular, the
prevention of furnace explosions resulting from the introduction of low solids liquor into the
furnace has been a subject of recent study by industrial insurance companies. Their
recommendations include the provision of dual black liquor solids monitoring devices with
adjunctive alarm and shut-off or diversion systems.
To meet these requirements, the Electron Machine Corporation whose refractometers have
become the industry’s worldwide standard for heavy black liquor measurement, has developed
the MDS E-Scan. This system is designed to detect and display any malfunctions, which might
be encountered for whatever reason during normal operation of the EMC refractometers with the
additional capability, if required, of initiating an emergency shut-off or quick diversion of the
process liquor.
The MDS E-Scan consists of the following equipment:
·One (1) MDS Monitor
·Two (2) MPR E-Scan Refractometers
·Two (2) Isolation Valves
·Printer
·Remote Status Panel (option)