Bio-Rad CHEF Mapper® XA System - Manual (Page 33)

4.8 Editing Parameters
The editing mode of the CHEF Mapper system lets you review or change any of the run
parameters before or during a run. To use the editing mode, first enter the run parameters into
the CHEF Mapper system using AUTO ALGORITHM, FIGE, TWO STATE, or MULTI
STATE. The screen will display A program is in memory. Please enter another command.
There are two methods for entering the edit mode before the run is started. Press FIGE, TWO
STATE, or MULTI STATE, depending on which of these modes was chosen for the run.
The screen will display You will destroy last program - Go on? Press 2 to edit, then press
ENTER. This will take you to the first prompt in the run program. The second way to edit a
program is to press BLOCK, RUN TIME, STATE, INITIAL and FINAL SWITCH INTER-
VAL, VOLTAGE GRADIENT, or ANGLE (see Figure 4.3). Pressing any of these keys will
call up the corresponding section of the run program.
Fig. 4.3. Editing keys on the CHEF Mapper system panel.
This section describes the editing keys and their functions. The keys cannot be pressed
while a program is in run mode.
FIGE Mode
Block: Pressing BLOCK positions the prompt at the forward voltage gradient. Since there is
only one block in FIGE, this key places the cursor at the first parameter in the block.
Run Time: Pressing RUN TIME positions the prompt at the run time.
State: Pressing STATE displays the message Do you want Forward or Reverse? Enter 0 for
forward, or 1 for reverse. The prompt is placed at the forward voltage gradient, the first param-
eter in the state.
Initial Switch Interval: Pressing INITIAL SWITCH INTERVAL positions the prompt at
either the forward initial switch interval or the reverse initial switch interval, depending on the
state being edited.
Note: If initial switch time is changed after the run is started, the new value will not be
displayed immediately. The current state must be completed before the new value becomes
active.
Final Switch Interval: Pressing FINAL SWITCH INTERVAL positions the prompt at either
the forward final switch interval or the reverse final switch interval, depending on the state
being edited.
Voltage Gradient: Pressing VOLTAGE GRADIENT positions the prompt at either the
forward voltage gradient or the reverse voltage gradient, depending on the state being edited.
Angle: Pressing ANGLE displays Do you want Forward or Reverse? Enter 0 for forward,
or 1 for reverse. The prompt is placed at the forward voltage gradient, the first parameter in
the state.
STATE BLOCK
RUN
TIME INITIAL FINAL
VOLTAGE
GRADIENT ANGLE
SWITCH INTERVAL
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