Koehler K244 Sereis, Operation And Instruction Manual

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K244XX Programmable Ashing Furnace
Operation and Instruction Manual
K244XX-Manual
- 21-
The loop control function buttons are used to define the mode of operation of the loop.
Manual Control - This button switches the loop mode between automatic and manual operation.
When the loop is in automatic mode, the loop will automatically adjust its output based
on its PID settings. When the loop is in manual operation, the percentage of output for
the loop can then be set manually, to a fixed output percentage.
To switch the loop between auto and manual operation, press the button to place the
loop in auto or manual mode. When in manual mode, the button’s indicator will be on.
To adjust the loop output percentage when in manual operation, touch the percent
output display field and enter the desired percentage of output. If the loop is
configured for heat/cool operation, enter a positive value for heating and negative
value for cooling.
Start - This button starts the automatic ramp/soak program currently loaded in the loop
control. During program operation, the button text will change to “Hold”. Pressing the
button will place the program in hold. Pressing the button again will resume the
program.
Halt - This stops the automatic ramp/soak program running in the loop control. The loop
will be places back into the single set point (static) mode of operation.
NOTE: If the automatic ramp/soak program mode setting is set to “All”, the current program loaded field
and start/halt buttons will display and control the program loaded in the “primary” loop control. The
program mode and primary loop are adjusted on the program Settings screen. See section 5,
Automatic Ramp/Soak Program Operation for more information.
Overall Loop View
The Overall loop view provides a list of all loops configured in the system. It is accessed from the home
“View” menu. If the display is configured as a single loop system only loop one will be shown. The screen
allows manual set point entry for each loop by touching the respective row.
NOTE: If the automatic ramp/soak program mode setting is set to “All”, the current program loaded field
for the primary loop will display the program information. All other “slave” loops will indicate that
they are under set point control of the primary loop by displaying the name of the primary loop in
parenthesis. See section 5, Automatic Ramp/Soak Program Operation for more information.
Current Program
Loaded/Status