Installation and Operation
Laboratory Vacuum Ovens
6.2 Single
Operation
The following sections describe how to operate the controller in
single
(local) mode. Use this mode when you only need
to run the oven with a specific
and do not require a
programmed sequence of steps.
Setting High Temperature Alarm Setpoint:
1. Press and HOLD for three seconds the 'SETENT' button to
display
2. Press and release the 'SETENT' button to display
3. Press the
Button to show the lower display
value of
"1".
4. Press and release the 'SETENT' button to select this new
value and advance to the "SSP
25" display.
5. Press and release the 'SETENT" button until the High
Temperature Alarm
value is displayed as
"Al".
6. Select an alarm
10°C above the target
to be
selected.
7. Press and release the
button to place this new
value in the controller memory.
8. Press and HOLD for three seconds the
button to
exit this menu.
Accessing Local Mode
1. Press and hold for three seconds the
button to
display
2. Press and release the 'UP' button twice to select the display
3. Press and release the 'SETENT' button once to select Local
Mode. This selection causes the red indicator to illuminate
beside
o n the control panel.
4. Use the 'UP' and 'DOWN' buttons to select the desired
operating temperature setpoint.
5. Press and release the 'SETENT' button once to register the
value.
6. The display will then show measured temperature in the
upper display, the present temperature
in the lower
display.
7. This display and the buttons will remain active as long power
continues to the control module. Power interruptions will
cause the controller to enter reset or standby mode in which
no actions are made to operate the heating equipment.
You may use the arrow buttons to adjust the
(lower)
value to be adjusted in this display mode. The
button
will register
value changes, until these values are
changed again.
Exiting Local Mode
To exit Single
or Local Mode and turn off the energy to
the heaters:
1. Press and hold for three seconds the 'SETENT' button to
display
LCL".
2. Press and release the 'DOWN' button twice to select the
display
3. Press and release the
button once to select the
Reset Mode.
This selection causes the red indicator to extinguish beside
the display label "L" that had indicated the Local Mode.
4. This will change the display showing the measured
temperature in the upper display, with the lower display
showing the Start Set Point (SSP) temperature
of the
program.
6.3
Programming Operation: Entering a Program
This section describes how to enter a simple program that is
designed to:
direct the controller to ramp to a higher temperature;
stabilize;
ramp to a lower-temperature;
end with
an indefinite dwell.
If you intend to use the program features of the controller, it is
advisable to go through all the steps in this sample program to
familiarize yourself with the elements of programming mode.
Note:
the controller buttons are
for
2
minutes,
the controller will return to the regular operator
Entering Programming Mode
To access the programming menu:
1. Make sure the indicators beside " R U N and
on the
controller face are off. If either indicator is on, press and hold
the 'SETENT' buttonuntil the display shows
Select
in the lower display with the 'arrow' buttons. Press and
release the 'SETENT' button once.
2. Press the 'SETENT' button for 3 seconds to display
in the upper display and
in the lower display.
3. Press and release 'SETENT' until
is displayed. Make
sure the display below
is
(zero). If it is not
use 'DOWN ARROW' to select
and press and release
"SETENT' button to register the change to
4. Press and release the "SETENT' button until
is
displayed.
5. At
display, press the 'UP ARROW' to make the lower
display
"1".
6. Press and release the
button once to enter the
programming menu.
