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VI
Maintenance
A. Changing Fuses
The controller contains two fuses. Both fuses are held in the fuse assembly that is part of the pow-
er module located on the back panel of the controller. Follow the instructions below to change a
fuse.
Unplug the line cord from the power entry module at the rear of the 906A; locate the fuse block
immediately below the line cord socket. Press the tab of the fuse assembly and withdraw the fuse
assembly from the power module.
Turn the fuse assembly around so that the fuses are facing you. Check both fuses; replace the
burnt-out fuse with a fuse of the appropriate rating (refer to
Specifications
section). Reinsert the
fuse assembly into the power module; push it in until the ears click into place.
B. Schematic Diagrams
Because of the proprietary nature of our products, we do not supply schematic diagrams or soft-
ware listings. If you have any problem with operation or interface to any of our products, please
contact us; we will do everything we can to serve your needs.
C. Error Codes
The following Error Codes and their explanations will assist the Operator in diagnosing and re-
solving commonly encountered difficulties.
Error Code
Condition
E1
Action Not Allowed at This Time
E2
Parameter is at Limit
E3
Timeout During Setup
E11
Convection Tube VAC Adjustment Not Allowed at This Pressure
E12
Convection Tube ATM Adjustment Not Allowed at this Pressure
Figure 10: Error Codes
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