key will step forward to the next choice line.
ÿ
ù
key exits Modify, no change being
made to the string.
ÿ
þ
key exits Modify, with the new string displayed and entered into
memory.
3.6.
Security Mode Selection Shunt
The AV-9900 is equipped with a movable shunt to allow toggling between RUN and PROGRAM
modes of operation. While in RUN mode, access is prevented to all system critical parameters
(ranges, setpoint changes, etc.). Changes may be made to display functions as well as selection of
the currently active diversion setpoint. While in PROGRAM mode, full access to all system
parameters is allowed.
NOTE: Moving the Security Mode Selection Shunt to the PROGRAM position will
immediately force the unit to DIVERT flow. If already in DIVERT flow, the unit will
remain in that mode even if the hot product temperature rises above the active setpoint.
The following diagram illustrates the location of the Security Mode Selection Shunt, in addition to
the settings, RUN or PROGRAM.
Revision 3.0
Section 3
7
