VWR International 250V Instruction Manual page 102

The Display Screen will illuminate.
2. Press the CONSTANT key to select either Constant Voltage Operation or Constant Current
Operation from the Display Screen.
3. Use the Up Arrow / Down Arrow keys to set either voltage (V) or current (mA) parameters to
the appropriate values.
4. Press the MODE key to choose the TIME parameter, and use the Up Arrow / Down Arrow
keys to set the duration (hours/minutes) of the electrophoresis run.
5. Press START/PAUSE key to start electrophoresis.
6. Press the START/PAUSE key again to temporarily interrupt power. The red "Run" LED will
flash to indicate that the electrophoresis run is paused. Pressing the START/PAUSE key
again will restart the electrophoresis run.
7. Press the STOP key to permanently stop the electrophoresis run (the timer will reset).
8. To change the limits (Voltage or Amperage) of the electrophoresis run in progress:
Press the Mode key. Enter the changes using the Up Arrow / Down Arrow keys, and then
press START/PAUSE key once again to restart your operation.
Note: After stopping (using the STOP key) and restarting an operation, the timer resets and does not take
into account the time that electrophoresis was in progress before it was stopped.
6/22/2012
Revision 1.0
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