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3.1
MODE SELECTION
The dual timer front panel permits operation of the Savant DNA120 in one of the
two modes. Select switch A to either:
switch A is set to "OFF" . The unit will end the concentrator run.
run starts when switch A is set to"AUTO" . The run stops
Each of the above consists of a user-specified target setting and a timer of actual
elapsed time.
A three-digit display shows hours and minutes. A decimal point separates hours
from minutes. For example, 9.55 indicates 9 hours and 55 minutes. The display
can be set to show either the setting or the elapsed time.
The decimal point flashes when a run is in progress (auto run or manual run). The
decimal point is always lit when a run is not in progress.
3.2
SETTING A TARGET TIME
Actual elapsed time can be viewed during a run or at the end of a run. When
switch A is set to "OFF" , both timers are at 0.00 (0 hours and 0 minutes). You can
change the settings only when switch A is "OFF"; settings cannot be changed
during a run.
Set switch B to "RUN" to view or change the run timer. Set switch B to "HEATER"
to view or change the heater timer.
When you do not set a run time the timer counts upward (time elapsed). When a
time limit is set, the timer counts down; the display indicated the time remaining.
Using switch C increases or decreases the time setting in 5 minute increments to
to 9.55 (9 hours, 55 minutes) holding down switch C allows you to rapidly scroll
thru the settings until you release the switch.
• MANUAL-to initiate a concentrator run that you can start and stop
manually. The run starts when switch A is set to "MANUAL" when
•AUTO-to start a concentrator run for a predefined time interval. The
automatically at the end of the predefined time selected. The front
panel maintains two independent timers (switch B).
• RUN-timer measures the duration of the current run. You can view
or change this timer, (using switch C) when switch B is set to "RUN" .
• When setting the heater timer, above 9.55 (or below 0.05) there
exists a setting of "CCC" (for continuous HEATER operation),
and "OFF" (for HEATER off).
or
4
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