Keyboard; Output Sockets; Rear Panel - Amersham Pharmacia Biotech EPS 601 Manual Del Usuario

4.1.2 Keyboard

ENTER
enter
Enters a value, locks the value if correct, and moves programming to the next field. Valid values are
voltage 6-600 V, current 1-400 mA, power 1-100 W, time 0:01-500 h, volthours 1-500 000 Vh.
SET
set
Puts the instrument into SET, its programming and starting mode. In the RUN mode, pressing SET also
shows the programmed parameters for the actual run. In addition, SET allows you to make changes in
the program during a run after first pressing PAUSE CONTINUE.
CHANGE UP/CHANGE DOWN
/
Changes the parameter, value or other choice in the field which is blinking. Numerical values are
changed in an accelerating manner when a key is held down. Clicking a key changes the value in preset
increments. Parameters or units (e.g. Vh) and yes/no choices are changed with one key push. The keys
can also be used to switch between time and volthours in RUN, PAUSE and END. The values scroll i.e.
they automatically change from maximum to minimum value or vice versa.
RUN
run Pressing RUN starts the run and puts the program into RUN mode. The program number, current values
for voltage, current and power are shown on the display. The elapsed time or volthours are also
displayed. Switch between time and volthours with
PAUSE CONTINUE
pause Puts the instrument in PAUSE mode and switches off the voltage. The display shows the status of the run
at the time the key was pressed. PAUSE CONTINUE only operates in RUN mode. Time and integration
continue
values are retained. In the pause mode, SET can be used to make changes in the program. Return to
RUN mode by pressing PAUSE CONTINUE or by pressing RUN.
STOP
Stops the run and puts the instrument in END mode. The voltage is switched off and the end parameters
STOP
are displayed. Switch between time and integrated voltage by pressing
after pressing STOP.
Continue by pressing RUN to run the same method again or pressing SET to choose another program,
program a new method or make changes in an existing method.
MORE
You can disable the start current check that otherwise detects if the resistance is too high and switches
more
off the power. See Section 5.4.
EXIT
Stops the execution of an operation, such as the entry of a value. Only values/units that have already
exit
been confirmed by ENTER are retained. Returns the instrument to the mode that was left or the start
position in SET.

4.1.3 Output sockets

There are two sets of output sockets to allow two electrophoresis units to be connected and run at the
same time, see Fig. 1 inside front cover. The voltage output is 0–600 V. The negative output socket gives
between 0 and –300 V and the positive gives between 0 and +300 V.

4.2 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
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. Vent openings.
/ .
I to switch on the power to the power supply. Press 0 to switch off the
EPS 601 - User Manual
/ . A run cannot be continued
5