Output Sockets; Rear Panel; Operation; Connecting The Electrophoresis Unit(S) - GE EPS 301 Manual Del Usuario

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EPS 301 - User Manual

4.5 Output sockets

There are two sets of output sockets connected in parallel to allow two electrophoresis units to be
connected and run at the same time, see Fig. 1 inside front cover.

4.6 Rear panel

The rear panel is shown in Fig. 2, see inside front cover. On the rear panel there is:
1. A mains switch. Press in I to switch on the power to the power supply. Press 0 to switch off the
power.
2. A socket for the mains cable.
3. A switch for voltage range. The left position corresponds to 100–120 V and the right to 220–240 V.
4. Vents.

5. Operation

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.
5

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