Labconco CentriVa DNA Systems 7970037 - Manual (Page 18)

Chapter 4: Using Your CentriVap
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Operating the CentriVap Controls
Preheat:
To preheat the chamber, press the “PREHEAT” button. The display will show:
SP: XXX ACT: XXX
Press the increase or decrease button until the desired set point (SP) is displayed.
The actual chamber temperature, (ACT) is displayed to the right. When power is
being supplied to the heaters, a bar under the actual temperature will illuminate.
The chamber will continue to preheat until either the “PREHEAT” button is
pressed again or the “RUN” button is pressed.
Select existing program:
Operating parameters can be stored in memory so protocols can be repeated.
Nine programs can be stored. To select a program, press the set point “SELECT”
button until arrows point to the program number indicating that this set point can
be run or altered. To change the program number, press the increase or decrease
button until the desired program number is displayed. When the program number
is changed, all its set points change also to indicate the last entered parameters for
that program.
Store frequently run protocols in program 1, 2, or 3. Then, by pressing “PROG
1,” “PROG 2” or “PROG 3,” the stored program will be initiated without having
to press any other button. Pressing just the one button starts the rotor, the heater,
the timers and the vacuum pump.
Change “Temperature” Set Point:
To change the “Temperature” set point, press the set point “SELECT” button until
arrows point to the “Temperature” set point, which can be changed from - (OFF)
up to 99° by pressing the increase or decrease buttons. The set point is 100°C if
the display shows “HI.” The last entered set point is stored in memory.
Change “Run Time” or “Heater Time” Set Point:
To change the time set point, press the set point “SELECT” button until arrows
point to the “Heater Time” or “Run Time” set point which can be changed from 1
to 999 minutes by pressing the increase or decrease buttons. If it is desired to
have the CentriVap run continuously without alarming at the end of a time period,
press the increase button until the “Run Time” display says “ON.” The last
entered set point is stored in memory.
If during a run the “STOP” button is pressed, the timers remember the time at
which stop occurred. If “RUN” is then pressed, the timers continue to count
down from the time at which they were stopped. If you are running program 1,
program 2 or program 3, pressing “PROG 1,” “PROG 2” or “PROG 3” resets the
timers to the original set point time and the CentriVap starts a new run.