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5 Operation
Electrophoresis Power Supply EPS 301 User Manual 18-1130-18 Edition AC
5.1
Connecting the electrophoresis unit(s)
Connect the leads from the electrophoresis unit (red to red, and black or blue to blue).
Red is positive and black or blue negative. Two electrophoresis units can be run at the
same voltage simultaneously. When two electrophoresis units are run at the same time,
double the current. Voltage will be the same whether one or two units are run.
5.2
Programming
Programming
Enter the program mode by pressing SET/ENTER. When the display is flashing and one of
the parameters V, mA or h.m. is lit, the program is ready for setting the values by using
the
/
buttons.
Confirm and go to the next parameter by pressing SET/ENTER.
Pressing STOP in program mode saves the displayed value and puts the program in End
mode. When the EPS 301 power supply is switched on, the programmed values from the
last run can be used directly by pressing run.
Set limits for voltage, current and time
The flashing display and the lighted symbol V indicates that the voltage limit can be set.
Using the
/
buttons, select the maximum voltage desired for the run. Confirm with
SET/ENTER. Repeat the same procedure to set current and time limits. If no time limit is
used, switch the timer off by setting the time to zero. This is indicated by - - - -. Confirm
with SET/ENTER. Programmable values are: voltage, 5-300 V, current, 10-400 mA, time,
0.01-23.59 h or timer off (- - - -).
Alarm
When the programmed time has elapsed, the program will enter the End mode and the
alarm will sound. You can stop the alarm by pressing any key. The timer and alarm are
switched off by adjusting the time to zero.
5.3
Running
Run
Press RUN to start the electrophoresis. A light emitting diode shows when voltage is
applied (HV on). The display will show one of the actual values. If no current is displayed,
please check the electrical connections to the electrophoresis equipment.
View actual values
Press VIEW in Run mode to change between the actual values for voltage, current or
elapsed time. Press VIEW for more than three seconds to switch automatically between
these values. Stop the automatic switching by pressing VIEW or RUN.
Operation 5
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