Process Technology LUFRAN Instruction page 47

Control Access Menu (Continued):
Control Mode
Login Code
MANUAL MODE. This control mode allows an operator to control the % output of the
heater, regardless of flow rate or desired outlet temperature. When this mode is selected,
the HEATER CALIBRATION menu will disappear, and the PROCESS SETPOINT button in
the OPERATION MENU will be replaced by MANUAL OUTPUT %.
MAN
This control mode limits operator access to most operator functions. When the control
system is LOCKED (see above figure), the SYSTEM SETUP and SYSTEM SERVICE
menus will disappear. In addition, the settings in the OPERATION MENU will be locked, so
no changes can be made to the system.
LOCK
In order to unlock the control system the operator must access the USER LOGIN function,
and enter the login code ULOCK.
The system can be locked while in any of the operating modes. Changing control modes
will automatically unlock the control system.
ULOCK
This control mode will disable the lock function.
M-43-01
Revision - Date: 08 – 04/06/15
Description
Once in manual control mode the automated
control is no longer active and may result in
erratic behavior or over-temperature
conditions. For this reason, manual control
should only be used by qualified personnel as
a maintenance tool.
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Lufran Single Outlet Manual