GE EPS 3501 XL - Page 29

Electrophoresis Power Supply EPS 3501 XL Operating Instructions 28-9639-69 AA 29
Operation 4
Setting up a run 4.3
Figure 4-1. Step-by-step summary of programming.
Choosing step or gradient programming
Press set enter to confirm STEP ( ) or use keys to choose GRADIENT (/). Confirm
with set enter.
Note that your choice of gradient or step programming applies for all phases within the
program and you will only be asked to choose one of them when programming the first
phase.
Choosing step means that voltage, current and power limiting values are programmed.
The electrophoresis will be controlled by one of these limiting values, which means that
it is run at either constant voltage, current or power. The EPS 3501 XL automatically
switches over the controlling parameter according to programmed limits and
conductivity variations in the system. Thus the controlling parameter can switch within
a phase.
Step Action
Selection
1
1
Selection made in this example.
1
Choose Program number. 2
2
Choose STEP or GRADIENT mode. STEP
3
Confirm Phase number. 1
4
Set Voltage limit (in Step mode) or Voltage endpoint
(in Gradient mode).
1000 V
5
Set Current limit. 10 mA
6
Set Power limit. 10 W
7
Choose Breakpoint unit (h, Vh or mAh) or no breakpoint
(OFF).
Vh, OFF
8
Set Breakpoint 1000 Vh
9
Is this the last phase (Last Phase ?)? Choose Yes (Y) or No
(N)?
10
Choose Alarm Off (N) or On (Y). Y
11
The program is ready.