Editing A Program - Amersham Pharmacia Biotech EPS 3501 XL Manual Del Usuario

EPS 3501 XL - User Manual
Repeat the same procedure for limiting current and limiting power.
Programmable values for voltage are 35-3 500; current, 1–400 mA; power, 1–200 W.
Setting breakpoint
Choose between automatic or manual break. For automatic break, choose breakpoint unit in either
hours (h), volthours (Vh) or milliamperehours (mAh). Select the correct unit or, for manual break,
choose "OFF" with / . Confirm with SET ENTER.
Note that the breakpoint unit is valid for all phases within the program and you will only get this
question when programming the first phase, see "Other phases" bypass in Fig. 3.
If h, Vh or mAh is chosen, the display will flash for the break value for the actual phase. Set the value
with / and confirm with SET ENTER. Programmable values for time are 0:01–500 h, volthours,
1–500 000 Vh, milliamperehours, 1-25 000 mAh.
If OFF is chosen, you have to break the electrophoresis manually by pressing STOP and only one phase
can be entered. The program will go back to the start position and the program number will flash.
Last Phase?
After programming the breakpoint you are asked if this is the last phase or not. Select YES or NO with
/ and confirm with SET ENTER.
If YES is selected, no more phases will be added and the alarm question will be shown, see below.
If NO is selected, the next phase number for the program will be shown on the display together with
zero values for all parameters. Program the next phase according to "Setting voltage, current and power"
above and Fig. 3 point 4. Up to nine phases can be programmed.
Choosing alarm
The alarm can be set separately for each phase. The following question is shown:
Alarm Phase 1? Select YES or NO with / and confirm with .
If YES is selected in a 4 phase program this will be indicated by changing from - - - - to 1 - - - after
"Phase:" on the lower row in the display. Then you will be asked about an alarm for the next phase.
After answering YES or NO for the last phase, the start position in the SET mode will be shown. If
alarm is selected for a phase a small "A" appears on the right of the phase number, i.e. 2 2A.
Back to start position
The program is now back to the start position in the SET mode with the program number flashing. It is
possible to go back to this position at any stage during programming in SET mode by pressing EXIT or
STOP. Note that the program is automatically saved with all choices that have been confirmed by SET
ENTER when EXIT or STOP is pressed. If a phase containing invalid values (zeros) is left, this phase will
be deleted.
Disabling the start current check
See Section 5.5 if you want to use this feature.

5.3 Editing a program

Changing a parameter value
To change a parameter value, move to the start position in SET mode by pressing EXIT or SET ENTER
and choose program number as described on p. 11. If the programming mode (step or gradient) is
changed it will be changed for all the phases within the program.
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