Bio-Rad Model EP-1 Econo Pump - Manual (Page 17)

4. After selecting a Vt value, press the flashing Fraction
Collection key to enter the value. The flashing LED
display shows the estimated number of fractions to be
collected.
5. Press the flashing Fraction Collection key once more to
enable the fraction collector. To actuate the fraction
collector, press the Program Run key after starting the
pump. (The fraction collector can be programmed with
the pump running or stopped.) After the fraction
collection program is initiated, the LED display shows
the progression of the fraction collection scheme in
minutes, to the nearest tenth of a minute.
6. While a program is running, the user can use the Arrow
keys to display the ml of output, the progression of the
collection in min, the flow rate in ml/min, or the percent
of total run-time.
7. To abort the fraction collection scheme at any time
during the program, press the Run/Stop key twice. The
pump will stop, and the LED display will read OFF,
indicating abortion of the fraction collection program.
Note: When a program is aborted, it can only be restarted
from the beginning.
8. To place a collection program that has begun on Hold,
press the lit Program Run key once. The pump will stop
and the program will be held. To resume the collection
program, press once again. Pressing the Run/Stop key
while the program is on hold will abort the fraction
collection scheme.
9. When the fraction collection program is complete, the
pump stops and the display reads "END." Press any key
to return to the ready mode.
Notes on Fraction Collection:
1. After a fraction collection program has begun, the pump cannot be
turned off without terminating the fraction collection program.
ml
min
ml/min
%
ml
min
ml/min
%
V
V t
o
V
V t
o
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