23
exact defined setpoint. The exact temperature in the bath can be
measured using the external temperature probe. Therefore, the
user can adjust the temperature of each chamber individually to
fine-tune the temperature setting so that EXACT temperatures
can be achieved for any particular chamber. This is referred to as
a temperature offset (TEMP OFFSET ON CHAMBER).
The “SELECT” and “ALL” functions are the same in this menu
as previously described for the “VALVE DELAY” menu. Pressing
“ENTER” will store the numbers in memory for future experiments.
II. Valve Delay
Pressing “VALVE DELAY” in the INTERFACE SETTINGS sub menu
will allow the user to modify the time duration that the vacuum
valves stay open for washes. Factory default is set at 1second,
but 1second is usually not enough time to completely empty a
chamber with even as small a volume of 5 ml.
Pressing “ALL” will cause all the lines to turn blue, meaning all
chambers can be modified at the same time. Again, the up and
down arrow keys can be used to modify the length of time the
vacuum valves stay open.
Pressing “SELECT” next to any given channel will cause the line
selected to turn blue.
The up and down arrow keys can then be used to modify the
length of time the vacuum valves stay open after the valves have
been activated with the push buttons on the front panel of the
interface.
Pressing “ENTER” after modifying the value(s) for valve delay will
lock in the number(s) and be retained in memory every time the
system is turned on.
EMPTY VALVES DELAY
SELECT
SELECT
SELECT
SELECT
Chamber 1: 5 Sec.
Chamber 2: 6 Sec.
Chamber 3: 6 Sec.
Chamber 4: 5 Sec.
ALL
ENTER
EMPTY VALVES DELAY
SELECT
SELECT
SELECT
SELECT
Chamber 1: 5 Sec.
Chamber 2: 6 Sec.
Chamber 3: 6 Sec.
Chamber 4: 5 Sec.
ALL
ENTER
