VWR International 250V Instruction Manual page 13

4. Press START/PAUSE key to start electrophoresis.
5. Press the START/PAUSE key again to temporarily interrupt power to ongoing
electrophoresis without terminating the operation along with LED flashing.
6. Press the STOP key to stop electrophoresis.
7. To change Limits of Electrophoresis in Progress
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If you need to make changes to the current running limits, you must stop electrophoresis by
pressing the Mode key. Enter the changes and then press Start/Stop once again to restart
your operation.
Note: After stopping and restarting an operation, the timer resets to selected time and does not take into
account the time that electrophoresis was in progress before it was stopped.
Basic Programming Protocol
Introduction
Instructions for operating the 250V Power Supply in the Programming Operation are
provided in this section. The Programmable Mode allows you to vary levels in voltage (V),
current (mA), and power (W) during specified periods of time as discrete changes
(STEP) or as gradients (RAMP) for up to 10 Steps, depending upon your electrophoresis
needs.
A basic Programmable Mode operating procedure of the 250V Power Supply is provided
below. We recommend reading the guidelines provided in this manual for best results before
starting an operation.
Selecting a program
1. Select file mode by scrolling down using the ▼ key
2. When highlighted press Mode key
3. Select file number using the a▼▲ arrow keys
4. When file number is located press the Mode key
5. Select the number of steps by using the arrow ▼ ▲ arrow keys
6. To enter the parameters of the run press the Mode key
7. Select voltage Amperage or Watts use the Mode key
8. You can increase or decrease the value by using the▼▲ arrow keys
9. To set the time in hours press the Mode key
10. You can increase or decrease the value by using the▼▲ arrow keys
11. Select the Mode key again to select minutes.
12. You can increase or decrease the value by using the▼▲ arrow keys
13. To set the Amperage press the Mode key again
14. You can increase or decrease the value by using the▼▲ arrow keys
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