Chapter 4: Using Your RapidVap
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Original instructions
14.
Any time the RapidVap is not in operation, the power switch should be turned
OFF. This will prolong the life of the cooling fan and the blower in the
RapidVap N
2
.
Operational Notes
The LCD display conveys various pieces of information. When the RapidVap is
turned on, the RapidVap will return to the same mode (RUN or STOP) that it was
in when the power was turned off. If the RapidVap was in the RUN mode when
the power was turned off, when the power is turned on, the RapidVap will attempt
to return to the programmed set points.
If the previous run is to be duplicated, it is important to press the program set point
button prior to pressing run. This will show all the set points for that program and
will reset the timer back to the programmed set point. Without pressing the
program set point button, the time will not be reset and will continue to count
down from the time at which it was stopped.
Interrupting a Cycle After it Has Begun
At any time during a run, the cycle may be stopped by pressing the STOP button.
This shuts off all operating functions. After the chamber stops oscillating, the
latches may be unlatched and the lid opened. If it is necessary to re-start the
RapidVap, close the lid and secure the latches and press RUN. The RapidVap will
resume operation at the same set point parameters and the timer will continue to
count down from the time at which the RapidVap was stopped.
End Alarms
The RapidVap has two means to signal the completion of a run. The first method is
determined by the operator when the run time is set as described in the previous
paragraph, Time Setting Guidelines. In the second method the RapidVap will
automatically sense when an evaporation process is nearly complete by comparing
temperatures in the unit. When the RapidVap detects end point, it will sound an
alarm and the LED next to the “PREHEAT/ END ALARM” button will flash. This
alerts the operator to closely monitor the run’s completion. This method performs
best when large samples are processed at high temperatures. When small samples
or low temperatures are used, the alarm may signal prior to the end of evaporation.
The audible alarm may be canceled by pressing the “PREHEAT/ END ALARM”
button. The LED will continue to flash until the “STOP” button is pressed. If the
button is pressed again, the audible alarm will become active again.
